diff --git a/src/admin/src/api/identities.ts b/src/admin/src/api/identities.ts
new file mode 100644
index 0000000..a8b46d8
--- /dev/null
+++ b/src/admin/src/api/identities.ts
@@ -0,0 +1,63 @@
+import apiClient from './client';
+import type {
+  IdentityResponse,
+  FeatureStateResponse,
+  UpdateFeatureStateRequest,
+  PaginatedResponse,
+} from '@/types/api';
+
+export async function listIdentities(
+  envApiKey: string,
+  page = 1,
+  pageSize = 100,
+): Promise<PaginatedResponse<IdentityResponse>> {
+  const { data } = await apiClient.get<PaginatedResponse<IdentityResponse>>(
+    `/v1/environments/${envApiKey}/identities`,
+    { params: { page, pageSize } },
+  );
+  return data;
+}
+
+export async function getIdentity(envApiKey: string, id: number): Promise<IdentityResponse> {
+  const { data } = await apiClient.get<IdentityResponse>(
+    `/v1/environments/${envApiKey}/identities/${id}`,
+  );
+  return data;
+}
+
+export async function deleteIdentity(envApiKey: string, id: number): Promise<void> {
+  await apiClient.delete(`/v1/environments/${envApiKey}/identities/${id}`);
+}
+
+export async function getIdentityFeatureStates(
+  envApiKey: string,
+  identityId: number,
+): Promise<FeatureStateResponse[]> {
+  const { data } = await apiClient.get<FeatureStateResponse[]>(
+    `/v1/environments/${envApiKey}/identities/${identityId}/featurestates`,
+  );
+  return data;
+}
+
+export async function setIdentityFeatureState(
+  envApiKey: string,
+  identityId: number,
+  featureId: number,
+  request: UpdateFeatureStateRequest,
+): Promise<FeatureStateResponse> {
+  const { data } = await apiClient.put<FeatureStateResponse>(
+    `/v1/environments/${envApiKey}/identities/${identityId}/featurestates/${featureId}`,
+    request,
+  );
+  return data;
+}
+
+export async function deleteIdentityFeatureState(
+  envApiKey: string,
+  identityId: number,
+  featureId: number,
+): Promise<void> {
+  await apiClient.delete(
+    `/v1/environments/${envApiKey}/identities/${identityId}/featurestates/${featureId}`,
+  );
+}
diff --git a/src/admin/src/components/identities/IdentityDetail.vue b/src/admin/src/components/identities/IdentityDetail.vue
new file mode 100644
index 0000000..67a60e5
--- /dev/null
+++ b/src/admin/src/components/identities/IdentityDetail.vue
@@ -0,0 +1,374 @@
+<template>
+  <v-dialog
+    :model-value="modelValue"
+    max-width="680"
+    scrollable
+    @update:model-value="$emit('update:modelValue', $event)"
+  >
+    <v-card v-if="identity" rounded="lg" data-testid="identity-detail">
+      <!-- Header -->
+      <v-card-title class="d-flex align-center justify-space-between pa-6 pb-3">
+        <div>
+          <p class="text-h6 mb-0">{{ identity.identifier }}</p>
+          <p class="text-caption text-medium-emphasis mb-0">ID: {{ identity.id }}</p>
+        </div>
+        <v-btn icon="mdi-close" variant="text" size="small" @click="$emit('update:modelValue', false)" />
+      </v-card-title>
+
+      <v-tabs v-model="activeTab" color="primary" class="px-4">
+        <v-tab value="traits" data-testid="tab-traits">Traits</v-tab>
+        <v-tab value="overrides" data-testid="tab-overrides">Feature Overrides</v-tab>
+      </v-tabs>
+      <v-divider />
+
+      <v-card-text class="pa-0">
+        <v-tabs-window v-model="activeTab">
+          <!-- ── Traits tab ────────────────────────────────────────────── -->
+          <v-tabs-window-item value="traits" class="pa-6">
+            <v-alert
+              v-if="traitsError"
+              type="error"
+              variant="tonal"
+              density="compact"
+              closable
+              class="mb-4"
+              @click:close="traitsError = null"
+            >
+              {{ traitsError }}
+            </v-alert>
+
+            <div v-if="identity.traits.length === 0" class="text-center py-6 text-medium-emphasis">
+              <v-icon size="32" class="mb-2">mdi-tag-outline</v-icon>
+              <p class="text-body-2">No traits recorded for this identity.</p>
+            </div>
+
+            <v-table v-else density="compact" data-testid="traits-table">
+              <thead>
+                <tr>
+                  <th>Key</th>
+                  <th>Value</th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr v-for="trait in identity.traits" :key="trait.key" :data-testid="`trait-row-${trait.key}`">
+                  <td class="text-body-2 font-weight-medium">{{ trait.key }}</td>
+                  <td class="text-body-2">{{ trait.value }}</td>
+                </tr>
+              </tbody>
+            </v-table>
+
+            <!-- Danger zone -->
+            <v-card variant="outlined" color="error" rounded="lg" class="mt-6">
+              <v-card-title class="text-body-1 text-error pa-4 pb-2">Danger Zone</v-card-title>
+              <v-card-text class="pa-4 pt-0">
+                <p class="text-body-2 mb-3">
+                  Permanently delete this identity and all its traits and feature overrides.
+                  This cannot be undone.
+                </p>
+                <v-btn
+                  color="error"
+                  variant="flat"
+                  size="small"
+                  :loading="isDeleting"
+                  data-testid="delete-identity-btn"
+                  @click="onDeleteIdentity"
+                >
+                  Delete identity
+                </v-btn>
+              </v-card-text>
+            </v-card>
+          </v-tabs-window-item>
+
+          <!-- ── Overrides tab ─────────────────────────────────────────── -->
+          <v-tabs-window-item value="overrides" class="pa-6">
+            <v-alert
+              v-if="overridesError"
+              type="error"
+              variant="tonal"
+              density="compact"
+              closable
+              class="mb-4"
+              @click:close="overridesError = null"
+            >
+              {{ overridesError }}
+            </v-alert>
+
+            <div v-if="isLoadingOverrides" class="d-flex justify-center py-6">
+              <v-progress-circular indeterminate color="primary" />
+            </div>
+
+            <template v-else>
+              <!-- Existing overrides -->
+              <div v-if="overrides.length === 0" class="text-center py-4 text-medium-emphasis text-body-2 mb-4" data-testid="no-overrides-message">
+                No feature overrides for this identity.
+              </div>
+
+              <v-table v-else density="compact" class="mb-4" data-testid="overrides-table">
+                <thead>
+                  <tr>
+                    <th>Feature</th>
+                    <th style="width: 80px">Enabled</th>
+                    <th>Value</th>
+                    <th style="width: 40px"></th>
+                  </tr>
+                </thead>
+                <tbody>
+                  <tr v-for="override in overrides" :key="override.id" :data-testid="`override-row-${override.featureId}`">
+                    <td class="text-body-2 font-weight-medium">{{ featureNameMap.get(override.featureId) ?? `Feature ${override.featureId}` }}</td>
+                    <td>
+                      <v-switch
+                        :model-value="override.enabled"
+                        color="primary"
+                        hide-details
+                        density="compact"
+                        :data-testid="`override-toggle-${override.featureId}`"
+                        @update:model-value="onToggleOverride(override, $event)"
+                      />
+                    </td>
+                    <td>
+                      <v-text-field
+                        :model-value="override.value ?? ''"
+                        variant="underlined"
+                        density="compact"
+                        hide-details
+                        placeholder="(none)"
+                        :data-testid="`override-value-${override.featureId}`"
+                        @update:model-value="onUpdateOverrideValue(override, $event)"
+                      />
+                    </td>
+                    <td>
+                      <v-btn
+                        icon="mdi-trash-can-outline"
+                        size="x-small"
+                        variant="text"
+                        color="error"
+                        :data-testid="`remove-override-${override.featureId}`"
+                        @click="onRemoveOverride(override)"
+                      />
+                    </td>
+                  </tr>
+                </tbody>
+              </v-table>
+
+              <!-- Add Override -->
+              <v-divider class="mb-4" />
+              <p class="text-body-2 font-weight-medium mb-3">Add Override</p>
+              <div class="d-flex align-center ga-3 flex-wrap">
+                <v-select
+                  v-model="newOverrideFeatureId"
+                  :items="availableFeatures"
+                  item-title="name"
+                  item-value="id"
+                  label="Select feature"
+                  variant="outlined"
+                  density="compact"
+                  hide-details
+                  style="min-width: 200px; flex: 2"
+                  data-testid="add-override-feature-select"
+                />
+                <v-switch
+                  v-model="newOverrideEnabled"
+                  color="primary"
+                  label="Enabled"
+                  hide-details
+                  density="compact"
+                  data-testid="add-override-enabled-toggle"
+                />
+                <v-text-field
+                  v-model="newOverrideValue"
+                  label="Value (optional)"
+                  variant="outlined"
+                  density="compact"
+                  hide-details
+                  style="min-width: 140px; flex: 1"
+                  data-testid="add-override-value-input"
+                />
+                <v-btn
+                  color="primary"
+                  variant="flat"
+                  size="small"
+                  :disabled="!newOverrideFeatureId"
+                  :loading="isAddingOverride"
+                  data-testid="add-override-btn"
+                  @click="onAddOverride"
+                >
+                  Add
+                </v-btn>
+              </div>
+            </template>
+          </v-tabs-window-item>
+        </v-tabs-window>
+      </v-card-text>
+    </v-card>
+  </v-dialog>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, watch } from 'vue';
+import { getIdentityFeatureStates, setIdentityFeatureState, deleteIdentity, deleteIdentityFeatureState } from '@/api/identities';
+import { listFeatures } from '@/api/features';
+import { useContextStore } from '@/stores/context';
+import type { IdentityResponse, FeatureResponse, FeatureStateResponse } from '@/types/api';
+
+interface Props {
+  modelValue: boolean;
+  identity: IdentityResponse | null;
+}
+
+const props = defineProps<Props>();
+
+const emit = defineEmits<{
+  'update:modelValue': [value: boolean];
+  deleted: [identityId: number];
+}>();
+
+const contextStore = useContextStore();
+
+const activeTab = ref('traits');
+const isDeleting = ref(false);
+const traitsError = ref<string | null>(null);
+
+const overrides = ref<FeatureStateResponse[]>([]);
+const allFeatures = ref<FeatureResponse[]>([]);
+const isLoadingOverrides = ref(false);
+const overridesError = ref<string | null>(null);
+const isAddingOverride = ref(false);
+
+const newOverrideFeatureId = ref<number | null>(null);
+const newOverrideEnabled = ref(false);
+const newOverrideValue = ref('');
+
+// Map featureId → name for display in overrides table
+const featureNameMap = computed(() => new Map(allFeatures.value.map((f) => [f.id, f.name])));
+
+// Only show features that don't already have an override
+const availableFeatures = computed(() => {
+  const overriddenIds = new Set(overrides.value.map((o) => o.featureId));
+  return allFeatures.value.filter((f) => !overriddenIds.has(f.id));
+});
+
+async function loadOverridesData(): Promise<void> {
+  if (!props.identity) return;
+  const envApiKey = contextStore.currentEnvironment?.apiKey;
+  const projectId = contextStore.currentProject?.id;
+  if (!envApiKey || !projectId) return;
+
+  isLoadingOverrides.value = true;
+  overridesError.value = null;
+  try {
+    const [states, features] = await Promise.all([
+      getIdentityFeatureStates(envApiKey, props.identity.id),
+      allFeatures.value.length === 0 ? listFeatures(projectId, 1, 100) : Promise.resolve(null),
+    ]);
+    overrides.value = states;
+    if (features) allFeatures.value = features.results;
+  } catch {
+    overridesError.value = 'Failed to load feature overrides. Please try again.';
+  } finally {
+    isLoadingOverrides.value = false;
+  }
+}
+
+watch(
+  () => props.modelValue,
+  (open) => {
+    if (open) {
+      activeTab.value = 'traits';
+      traitsError.value = null;
+      overridesError.value = null;
+      overrides.value = [];
+      newOverrideFeatureId.value = null;
+      newOverrideEnabled.value = false;
+      newOverrideValue.value = '';
+      loadOverridesData();
+    }
+  },
+  { immediate: true },
+);
+
+async function onToggleOverride(override: FeatureStateResponse, enabled: boolean | null): Promise<void> {
+  if (enabled === null || !props.identity) return;
+  const envApiKey = contextStore.currentEnvironment?.apiKey;
+  if (!envApiKey) return;
+  overridesError.value = null;
+  try {
+    const updated = await setIdentityFeatureState(envApiKey, props.identity.id, override.featureId, {
+      enabled,
+      value: override.value,
+    });
+    const idx = overrides.value.findIndex((o) => o.featureId === override.featureId);
+    if (idx >= 0) overrides.value[idx] = updated;
+  } catch {
+    overridesError.value = 'Failed to update override. Please try again.';
+  }
+}
+
+async function onUpdateOverrideValue(override: FeatureStateResponse, value: string): Promise<void> {
+  if (!props.identity) return;
+  const envApiKey = contextStore.currentEnvironment?.apiKey;
+  if (!envApiKey) return;
+  overridesError.value = null;
+  try {
+    const updated = await setIdentityFeatureState(envApiKey, props.identity.id, override.featureId, {
+      enabled: override.enabled,
+      value: value || null,
+    });
+    const idx = overrides.value.findIndex((o) => o.featureId === override.featureId);
+    if (idx >= 0) overrides.value[idx] = updated;
+  } catch {
+    overridesError.value = 'Failed to update override value. Please try again.';
+  }
+}
+
+async function onRemoveOverride(override: FeatureStateResponse): Promise<void> {
+  if (!props.identity) return;
+  const envApiKey = contextStore.currentEnvironment?.apiKey;
+  if (!envApiKey) return;
+  overridesError.value = null;
+  try {
+    await deleteIdentityFeatureState(envApiKey, props.identity.id, override.featureId);
+    overrides.value = overrides.value.filter((o) => o.featureId !== override.featureId);
+  } catch {
+    overridesError.value = 'Failed to remove override. Please try again.';
+  }
+}
+
+async function onAddOverride(): Promise<void> {
+  if (!newOverrideFeatureId.value || !props.identity) return;
+  const envApiKey = contextStore.currentEnvironment?.apiKey;
+  if (!envApiKey) return;
+  isAddingOverride.value = true;
+  overridesError.value = null;
+  try {
+    const created = await setIdentityFeatureState(envApiKey, props.identity.id, newOverrideFeatureId.value, {
+      enabled: newOverrideEnabled.value,
+      value: newOverrideValue.value || null,
+    });
+    overrides.value = [...overrides.value, created];
+    newOverrideFeatureId.value = null;
+    newOverrideEnabled.value = false;
+    newOverrideValue.value = '';
+  } catch {
+    overridesError.value = 'Failed to add override. Please try again.';
+  } finally {
+    isAddingOverride.value = false;
+  }
+}
+
+async function onDeleteIdentity(): Promise<void> {
+  if (!props.identity) return;
+  const envApiKey = contextStore.currentEnvironment?.apiKey;
+  if (!envApiKey) return;
+  isDeleting.value = true;
+  traitsError.value = null;
+  try {
+    await deleteIdentity(envApiKey, props.identity.id);
+    emit('deleted', props.identity.id);
+    emit('update:modelValue', false);
+  } catch {
+    traitsError.value = 'Failed to delete identity. Please try again.';
+  } finally {
+    isDeleting.value = false;
+  }
+}
+</script>
diff --git a/src/admin/src/views/IdentitiesView.vue b/src/admin/src/views/IdentitiesView.vue
index 3e9b612..acc8feb 100644
--- a/src/admin/src/views/IdentitiesView.vue
+++ b/src/admin/src/views/IdentitiesView.vue
@@ -1,18 +1,175 @@
 <template>
-  <v-row>
-    <v-col cols="12">
-      <div class="d-flex align-center justify-space-between mb-4">
-        <h1 class="text-h5 font-weight-bold">Identities</h1>
-      </div>
-      <v-card>
-        <v-card-text class="text-medium-emphasis">
-          Identities represent the individual users or services that consume your feature flags.
-          Select an environment to manage identities.
-        </v-card-text>
+  <div>
+    <div class="d-flex align-center justify-space-between mb-4">
+      <h1 class="text-h5 font-weight-bold">Identities</h1>
+    </div>
+
+    <!-- No environment selected -->
+    <v-card v-if="!contextStore.currentEnvironment" variant="outlined" rounded="lg">
+      <v-card-text class="text-center py-10">
+        <v-icon size="48" color="medium-emphasis" class="mb-3">mdi-account-outline</v-icon>
+        <p class="text-h6 mb-2">Select an environment</p>
+        <p class="text-body-2 text-medium-emphasis">
+          Choose an environment to view and manage identities.
+        </p>
+      </v-card-text>
+    </v-card>
+
+    <template v-else>
+      <!-- Search bar -->
+      <v-text-field
+        v-model="search"
+        prepend-inner-icon="mdi-magnify"
+        label="Search identities"
+        variant="outlined"
+        density="comfortable"
+        clearable
+        hide-details
+        class="mb-4"
+        data-testid="identity-search"
+      />
+
+      <!-- Identities table -->
+      <v-card rounded="lg">
+        <v-data-table
+          :headers="headers"
+          :items="filteredIdentities"
+          :loading="isLoading"
+          :items-per-page="20"
+          hover
+          data-testid="identities-table"
+          @click:row="onRowClick"
+        >
+          <!-- Identifier -->
+          <template #item.identifier="{ item }: { item: IdentityResponse }">
+            <span class="text-body-2 font-weight-medium">{{ item.identifier }}</span>
+          </template>
+
+          <!-- Trait count -->
+          <template #item.traits="{ item }: { item: IdentityResponse }">
+            <span class="text-body-2 text-medium-emphasis">{{ item.traits.length }}</span>
+          </template>
+
+          <!-- Created at -->
+          <template #item.createdAt="{ item }: { item: IdentityResponse }">
+            <span class="text-caption text-medium-emphasis">{{ formatDate(item.createdAt) }}</span>
+          </template>
+
+          <!-- Row actions -->
+          <template #item.actions="{ item }: { item: IdentityResponse }">
+            <v-btn
+              icon="mdi-eye-outline"
+              size="small"
+              variant="text"
+              :data-testid="`view-identity-${item.id}`"
+              @click.stop="openDetail(item)"
+            />
+          </template>
+
+          <!-- Empty state -->
+          <template #no-data>
+            <div class="text-center py-8">
+              <v-icon size="40" color="medium-emphasis" class="mb-2">mdi-account-outline</v-icon>
+              <p class="text-body-2 text-medium-emphasis">No identities found in this environment.</p>
+            </div>
+          </template>
+        </v-data-table>
       </v-card>
-    </v-col>
-  </v-row>
+    </template>
+
+    <!-- Identity detail dialog -->
+    <IdentityDetail
+      v-model="showDetail"
+      :identity="selectedIdentity"
+      @deleted="onIdentityDeleted"
+    />
+
+    <!-- Error snackbar -->
+    <v-snackbar
+      v-model="showErrorSnackbar"
+      color="error"
+      :timeout="4000"
+      location="bottom"
+    >
+      {{ snackbarMessage }}
+      <template #actions>
+        <v-btn variant="text" @click="showErrorSnackbar = false">Dismiss</v-btn>
+      </template>
+    </v-snackbar>
+  </div>
 </template>
 
 <script setup lang="ts">
+import { ref, computed, watch } from 'vue';
+import { listIdentities } from '@/api/identities';
+import { useContextStore } from '@/stores/context';
+import IdentityDetail from '@/components/identities/IdentityDetail.vue';
+import type { IdentityResponse } from '@/types/api';
+
+const contextStore = useContextStore();
+
+const identities = ref<IdentityResponse[]>([]);
+const isLoading = ref(false);
+const search = ref('');
+const showErrorSnackbar = ref(false);
+const snackbarMessage = ref('');
+
+const showDetail = ref(false);
+const selectedIdentity = ref<IdentityResponse | null>(null);
+
+const headers = [
+  { title: 'Identifier', key: 'identifier', sortable: true },
+  { title: 'Traits', key: 'traits', sortable: false, width: '80' },
+  { title: 'Created', key: 'createdAt', sortable: true, width: '130' },
+  { title: '', key: 'actions', sortable: false, width: '50', align: 'end' as const },
+];
+
+function showError(message: string): void {
+  snackbarMessage.value = message;
+  showErrorSnackbar.value = true;
+}
+
+const filteredIdentities = computed(() => {
+  if (!search.value) return identities.value;
+  const q = search.value.toLowerCase();
+  return identities.value.filter((i) => i.identifier.toLowerCase().includes(q));
+});
+
+async function loadIdentities(): Promise<void> {
+  const envApiKey = contextStore.currentEnvironment?.apiKey;
+  if (!envApiKey) {
+    identities.value = [];
+    return;
+  }
+  isLoading.value = true;
+  try {
+    const result = await listIdentities(envApiKey, 1, 100);
+    identities.value = result.results;
+  } catch {
+    identities.value = [];
+    showError('Failed to load identities. Please refresh the page.');
+  } finally {
+    isLoading.value = false;
+  }
+}
+
+watch(() => contextStore.currentEnvironment, loadIdentities, { immediate: true });
+
+function openDetail(identity: IdentityResponse): void {
+  selectedIdentity.value = identity;
+  showDetail.value = true;
+}
+
+function onRowClick(_event: Event, { item }: { item: IdentityResponse }): void {
+  openDetail(item);
+}
+
+function onIdentityDeleted(identityId: number): void {
+  identities.value = identities.value.filter((i) => i.id !== identityId);
+  showDetail.value = false;
+}
+
+function formatDate(iso: string): string {
+  return new Date(iso).toLocaleDateString(undefined, { month: 'short', day: 'numeric', year: 'numeric' });
+}
 </script>
diff --git a/src/admin/tests/unit/components/identities/IdentityDetail.spec.ts b/src/admin/tests/unit/components/identities/IdentityDetail.spec.ts
new file mode 100644
index 0000000..2cdb503
--- /dev/null
+++ b/src/admin/tests/unit/components/identities/IdentityDetail.spec.ts
@@ -0,0 +1,266 @@
+import { describe, it, expect, beforeEach, jest } from '@jest/globals';
+import { mount, flushPromises, type VueWrapper } from '@vue/test-utils';
+import { setActivePinia, createPinia } from 'pinia';
+import { createRouter, createMemoryHistory } from 'vue-router';
+import IdentityDetail from '@/components/identities/IdentityDetail.vue';
+import { useContextStore } from '@/stores/context';
+import type { EnvironmentResponse, IdentityResponse, FeatureResponse, FeatureStateResponse, ProjectResponse } from '@/types/api';
+
+jest.mock('@/api/identities');
+jest.mock('@/api/features');
+jest.mock('@/api/client', () => ({
+  setAuthTokens: jest.fn(),
+  clearAuthTokens: jest.fn(),
+  getAccessToken: jest.fn(),
+}));
+
+import * as identitiesApi from '@/api/identities';
+import * as featuresApi from '@/api/features';
+
+const mockProject: ProjectResponse = {
+  id: 10, name: 'Website', organizationId: 1, hideDisabledFlags: false, createdAt: '2026-01-01T00:00:00Z',
+};
+const mockEnv: EnvironmentResponse = {
+  id: 100, name: 'Development', apiKey: 'env-dev', projectId: 10, createdAt: '2026-01-01T00:00:00Z',
+};
+const mockIdentity: IdentityResponse = {
+  id: 1,
+  identifier: 'user-alice',
+  environmentId: 100,
+  traits: [{ key: 'plan', value: 'pro' }, { key: 'country', value: 'US' }],
+  createdAt: '2026-01-01T00:00:00Z',
+};
+const mockFeatures: FeatureResponse[] = [
+  { id: 10, name: 'dark_mode', type: 'STANDARD', initialValue: null, description: null, defaultEnabled: false, projectId: 10, createdAt: '2026-01-01T00:00:00Z' },
+  { id: 20, name: 'beta_feature', type: 'STANDARD', initialValue: null, description: null, defaultEnabled: false, projectId: 10, createdAt: '2026-01-01T00:00:00Z' },
+];
+const mockOverride: FeatureStateResponse = {
+  id: 500, featureId: 10, environmentId: 100, identityId: 1, featureSegmentId: null,
+  enabled: true, value: null, createdAt: '2026-01-01T00:00:00Z', updatedAt: '2026-01-01T00:00:00Z',
+};
+
+const dialogStub = { template: '<div><slot /></div>' };
+
+function mountDetail(props: Record<string, unknown> = {}) {
+  const router = createRouter({ history: createMemoryHistory(), routes: [{ path: '/', component: { template: '<div />' } }] });
+  return mount(IdentityDetail, {
+    props: { modelValue: true, identity: mockIdentity, ...props },
+    global: { plugins: [router], stubs: { 'v-dialog': dialogStub } },
+  });
+}
+
+describe('IdentityDetail', () => {
+  beforeEach(() => {
+    setActivePinia(createPinia());
+    jest.clearAllMocks();
+    const contextStore = useContextStore();
+    contextStore.setOrganization({ id: 1, name: 'Acme', createdAt: '' });
+    contextStore.setProject(mockProject);
+    contextStore.setEnvironment(mockEnv);
+
+    jest.mocked(identitiesApi.getIdentityFeatureStates).mockResolvedValue([]);
+    jest.mocked(featuresApi.listFeatures).mockResolvedValue({ count: 2, next: null, previous: null, results: mockFeatures });
+  });
+
+  describe('WhenOpenedWithIdentity', () => {
+    it('ThenDetailCardIsRendered', async () => {
+      const wrapper = mountDetail();
+      await flushPromises();
+      expect(wrapper.find('[data-testid="identity-detail"]').exists()).toBe(true);
+    });
+
+    it('ThenIdentifierIsDisplayed', async () => {
+      const wrapper = mountDetail();
+      await flushPromises();
+      expect(wrapper.text()).toContain('user-alice');
+    });
+
+    it('ThenTraitsAndOverridesTabsArePresent', async () => {
+      const wrapper = mountDetail();
+      await flushPromises();
+      expect(wrapper.find('[data-testid="tab-traits"]').exists()).toBe(true);
+      expect(wrapper.find('[data-testid="tab-overrides"]').exists()).toBe(true);
+    });
+  });
+
+  describe('WhenTraitsTabIsActive', () => {
+    it('ThenTraitsTableIsRendered', async () => {
+      const wrapper = mountDetail();
+      await flushPromises();
+      expect(wrapper.find('[data-testid="traits-table"]').exists()).toBe(true);
+    });
+
+    it('ThenTraitRowsAreDisplayed', async () => {
+      const wrapper = mountDetail();
+      await flushPromises();
+      expect(wrapper.find('[data-testid="trait-row-plan"]').exists()).toBe(true);
+      expect(wrapper.find('[data-testid="trait-row-country"]').exists()).toBe(true);
+      expect(wrapper.text()).toContain('plan');
+      expect(wrapper.text()).toContain('pro');
+    });
+
+    it('ThenEmptyMessageIsShownWhenNoTraits', async () => {
+      const identityWithNoTraits: IdentityResponse = { ...mockIdentity, traits: [] };
+      const wrapper = mountDetail({ identity: identityWithNoTraits });
+      await flushPromises();
+      expect(wrapper.find('[data-testid="traits-table"]').exists()).toBe(false);
+    });
+  });
+
+  describe('WhenDeleteIdentityIsClicked', () => {
+    it('ThenDeleteIdentityApiIsCalled', async () => {
+      jest.mocked(identitiesApi.deleteIdentity).mockResolvedValue(undefined);
+
+      const wrapper = mountDetail();
+      await flushPromises();
+
+      await wrapper.find('[data-testid="delete-identity-btn"]').trigger('click');
+      await flushPromises();
+
+      expect(identitiesApi.deleteIdentity).toHaveBeenCalledWith(mockEnv.apiKey, mockIdentity.id);
+    });
+
+    it('ThenDeletedEventIsEmitted', async () => {
+      jest.mocked(identitiesApi.deleteIdentity).mockResolvedValue(undefined);
+
+      const wrapper = mountDetail();
+      await flushPromises();
+
+      await wrapper.find('[data-testid="delete-identity-btn"]').trigger('click');
+      await flushPromises();
+
+      expect(wrapper.emitted('deleted')).toBeTruthy();
+      expect(wrapper.emitted('deleted')![0]).toEqual([mockIdentity.id]);
+    });
+  });
+
+  describe('WhenOverridesTabIsActive', () => {
+    it('ThenNoOverridesMessageIsShownWhenEmpty', async () => {
+      const wrapper = mountDetail();
+      await flushPromises();
+
+      await wrapper.find('[data-testid="tab-overrides"]').trigger('click');
+      await wrapper.vm.$nextTick();
+
+      expect(wrapper.find('[data-testid="no-overrides-message"]').exists()).toBe(true);
+    });
+
+    it('ThenExistingOverridesAreDisplayed', async () => {
+      jest.mocked(identitiesApi.getIdentityFeatureStates).mockResolvedValue([mockOverride]);
+
+      const wrapper = mountDetail();
+      await flushPromises();
+
+      await wrapper.find('[data-testid="tab-overrides"]').trigger('click');
+      await wrapper.vm.$nextTick();
+
+      expect(wrapper.find('[data-testid="overrides-table"]').exists()).toBe(true);
+      expect(wrapper.find(`[data-testid="override-row-${mockOverride.featureId}"]`).exists()).toBe(true);
+    });
+
+    it('ThenFeatureNameIsShownInOverrideRow', async () => {
+      jest.mocked(identitiesApi.getIdentityFeatureStates).mockResolvedValue([mockOverride]);
+
+      const wrapper = mountDetail();
+      await flushPromises();
+
+      await wrapper.find('[data-testid="tab-overrides"]').trigger('click');
+      await wrapper.vm.$nextTick();
+
+      expect(wrapper.text()).toContain('dark_mode');
+    });
+  });
+
+  describe('WhenOverrideToggleIsChanged', () => {
+    it('ThenSetIdentityFeatureStateIsCalledWithNewEnabled', async () => {
+      jest.mocked(identitiesApi.getIdentityFeatureStates).mockResolvedValue([mockOverride]);
+      jest.mocked(identitiesApi.setIdentityFeatureState).mockResolvedValue({ ...mockOverride, enabled: false });
+
+      const wrapper = mountDetail();
+      await flushPromises();
+
+      await wrapper.find('[data-testid="tab-overrides"]').trigger('click');
+      await wrapper.vm.$nextTick();
+
+      await (wrapper.findComponent(`[data-testid="override-toggle-${mockOverride.featureId}"]`) as VueWrapper<any>).vm.$emit('update:modelValue', false);
+      await flushPromises();
+
+      expect(identitiesApi.setIdentityFeatureState).toHaveBeenCalledWith(
+        mockEnv.apiKey,
+        mockIdentity.id,
+        mockOverride.featureId,
+        { enabled: false, value: null },
+      );
+    });
+  });
+
+  describe('WhenRemoveOverrideIsClicked', () => {
+    it('ThenDeleteIdentityFeatureStateIsCalledAndOverrideIsRemoved', async () => {
+      jest.mocked(identitiesApi.getIdentityFeatureStates).mockResolvedValue([mockOverride]);
+      jest.mocked(identitiesApi.deleteIdentityFeatureState).mockResolvedValue(undefined);
+
+      const wrapper = mountDetail();
+      await flushPromises();
+
+      await wrapper.find('[data-testid="tab-overrides"]').trigger('click');
+      await wrapper.vm.$nextTick();
+
+      await wrapper.find(`[data-testid="remove-override-${mockOverride.featureId}"]`).trigger('click');
+      await flushPromises();
+
+      expect(identitiesApi.deleteIdentityFeatureState).toHaveBeenCalledWith(
+        mockEnv.apiKey,
+        mockIdentity.id,
+        mockOverride.featureId,
+      );
+      expect(wrapper.find('[data-testid="overrides-table"]').exists()).toBe(false);
+      expect(wrapper.find('[data-testid="no-overrides-message"]').exists()).toBe(true);
+    });
+  });
+
+  describe('WhenAddOverrideIsSubmitted', () => {
+    it('ThenSetIdentityFeatureStateIsCalledWithSelectedFeature', async () => {
+      const newOverride: FeatureStateResponse = { ...mockOverride, featureId: 20, enabled: true };
+      jest.mocked(identitiesApi.setIdentityFeatureState).mockResolvedValue(newOverride);
+
+      const wrapper = mountDetail();
+      await flushPromises();
+
+      await wrapper.find('[data-testid="tab-overrides"]').trigger('click');
+      await wrapper.vm.$nextTick();
+
+      await (wrapper.findComponent('[data-testid="add-override-feature-select"]') as VueWrapper<any>).vm.$emit('update:modelValue', 20);
+      await wrapper.vm.$nextTick();
+
+      await wrapper.find('[data-testid="add-override-btn"]').trigger('click');
+      await flushPromises();
+
+      expect(identitiesApi.setIdentityFeatureState).toHaveBeenCalledWith(
+        mockEnv.apiKey,
+        mockIdentity.id,
+        20,
+        expect.objectContaining({ enabled: false }),
+      );
+    });
+
+    it('ThenOverrideIsAddedToList', async () => {
+      const newOverride: FeatureStateResponse = { ...mockOverride, featureId: 20, enabled: true };
+      jest.mocked(identitiesApi.setIdentityFeatureState).mockResolvedValue(newOverride);
+
+      const wrapper = mountDetail();
+      await flushPromises();
+
+      await wrapper.find('[data-testid="tab-overrides"]').trigger('click');
+      await wrapper.vm.$nextTick();
+
+      await (wrapper.findComponent('[data-testid="add-override-feature-select"]') as VueWrapper<any>).vm.$emit('update:modelValue', 20);
+      await wrapper.vm.$nextTick();
+
+      await wrapper.find('[data-testid="add-override-btn"]').trigger('click');
+      await flushPromises();
+
+      expect(wrapper.find('[data-testid="overrides-table"]').exists()).toBe(true);
+      expect(wrapper.find(`[data-testid="override-row-20"]`).exists()).toBe(true);
+    });
+  });
+});
diff --git a/src/admin/tests/unit/views/IdentitiesView.spec.ts b/src/admin/tests/unit/views/IdentitiesView.spec.ts
new file mode 100644
index 0000000..4e41a1e
--- /dev/null
+++ b/src/admin/tests/unit/views/IdentitiesView.spec.ts
@@ -0,0 +1,180 @@
+import { describe, it, expect, beforeEach, jest } from '@jest/globals';
+import { mount, flushPromises } from '@vue/test-utils';
+import { setActivePinia, createPinia } from 'pinia';
+import { createRouter, createMemoryHistory } from 'vue-router';
+import IdentitiesView from '@/views/IdentitiesView.vue';
+import { useContextStore } from '@/stores/context';
+import type { ProjectResponse, EnvironmentResponse, IdentityResponse } from '@/types/api';
+
+jest.mock('@/api/identities');
+jest.mock('@/api/features');
+jest.mock('@/api/client', () => ({
+  setAuthTokens: jest.fn(),
+  clearAuthTokens: jest.fn(),
+  getAccessToken: jest.fn(),
+}));
+
+import * as identitiesApi from '@/api/identities';
+
+const mockProject: ProjectResponse = {
+  id: 10, name: 'Website', organizationId: 1, hideDisabledFlags: false, createdAt: '2026-01-01T00:00:00Z',
+};
+const mockEnv: EnvironmentResponse = {
+  id: 100, name: 'Development', apiKey: 'env-dev', projectId: 10, createdAt: '2026-01-01T00:00:00Z',
+};
+const mockIdentities: IdentityResponse[] = [
+  { id: 1, identifier: 'user-alice', environmentId: 100, traits: [{ key: 'plan', value: 'pro' }], createdAt: '2026-01-01T00:00:00Z' },
+  { id: 2, identifier: 'user-bob', environmentId: 100, traits: [], createdAt: '2026-01-02T00:00:00Z' },
+];
+
+const dialogStub = { template: '<div><slot /></div>' };
+
+function mountView() {
+  const router = createRouter({ history: createMemoryHistory(), routes: [{ path: '/', component: { template: '<div />' } }] });
+  return mount(IdentitiesView, {
+    global: { plugins: [router], stubs: { 'v-dialog': dialogStub } },
+  });
+}
+
+describe('IdentitiesView', () => {
+  beforeEach(() => {
+    setActivePinia(createPinia());
+    jest.clearAllMocks();
+  });
+
+  describe('WhenNoEnvironmentIsSelected', () => {
+    it('ThenEmptyStateIsShown', () => {
+      const wrapper = mountView();
+      expect(wrapper.find('[data-testid="identities-table"]').exists()).toBe(false);
+      expect(wrapper.text()).toContain('Select an environment');
+    });
+  });
+
+  describe('WhenEnvironmentIsSelected', () => {
+    it('ThenIdentitiesAreLoaded', async () => {
+      jest.mocked(identitiesApi.listIdentities).mockResolvedValue({
+        count: 2, next: null, previous: null, results: mockIdentities,
+      });
+
+      const contextStore = useContextStore();
+      contextStore.setOrganization({ id: 1, name: 'Acme', createdAt: '' });
+      contextStore.setProject(mockProject);
+      contextStore.setEnvironment(mockEnv);
+
+      mountView();
+      await flushPromises();
+
+      expect(identitiesApi.listIdentities).toHaveBeenCalledWith(mockEnv.apiKey, 1, 100);
+    });
+
+    it('ThenIdentitiesTableIsRendered', async () => {
+      jest.mocked(identitiesApi.listIdentities).mockResolvedValue({
+        count: 2, next: null, previous: null, results: mockIdentities,
+      });
+
+      const contextStore = useContextStore();
+      contextStore.setOrganization({ id: 1, name: 'Acme', createdAt: '' });
+      contextStore.setProject(mockProject);
+      contextStore.setEnvironment(mockEnv);
+
+      const wrapper = mountView();
+      await flushPromises();
+
+      expect(wrapper.find('[data-testid="identities-table"]').exists()).toBe(true);
+      expect(wrapper.text()).toContain('user-alice');
+      expect(wrapper.text()).toContain('user-bob');
+    });
+
+    it('ThenSearchFilterIsApplied', async () => {
+      jest.mocked(identitiesApi.listIdentities).mockResolvedValue({
+        count: 2, next: null, previous: null, results: mockIdentities,
+      });
+
+      const contextStore = useContextStore();
+      contextStore.setOrganization({ id: 1, name: 'Acme', createdAt: '' });
+      contextStore.setProject(mockProject);
+      contextStore.setEnvironment(mockEnv);
+
+      const wrapper = mountView();
+      await flushPromises();
+
+      // Set search value
+      const searchInput = wrapper.find('[data-testid="identity-search"]');
+      await searchInput.find('input').setValue('alice');
+      await wrapper.vm.$nextTick();
+
+      expect(wrapper.text()).toContain('user-alice');
+      expect(wrapper.text()).not.toContain('user-bob');
+    });
+  });
+
+  describe('WhenViewButtonIsClicked', () => {
+    it('ThenIdentityDetailIsOpened', async () => {
+      jest.mocked(identitiesApi.listIdentities).mockResolvedValue({
+        count: 2, next: null, previous: null, results: mockIdentities,
+      });
+
+      const contextStore = useContextStore();
+      contextStore.setOrganization({ id: 1, name: 'Acme', createdAt: '' });
+      contextStore.setProject(mockProject);
+      contextStore.setEnvironment(mockEnv);
+
+      const wrapper = mountView();
+      await flushPromises();
+
+      await wrapper.find('[data-testid="view-identity-1"]').trigger('click');
+      await wrapper.vm.$nextTick();
+
+      const detail = wrapper.findComponent({ name: 'IdentityDetail' });
+      expect(detail.props('identity')).toEqual(mockIdentities[0]);
+    });
+  });
+
+  describe('WhenIdentityIsDeleted', () => {
+    it('ThenIdentityIsRemovedFromList', async () => {
+      jest.mocked(identitiesApi.listIdentities).mockResolvedValue({
+        count: 2, next: null, previous: null, results: [...mockIdentities],
+      });
+
+      const contextStore = useContextStore();
+      contextStore.setOrganization({ id: 1, name: 'Acme', createdAt: '' });
+      contextStore.setProject(mockProject);
+      contextStore.setEnvironment(mockEnv);
+
+      const wrapper = mountView();
+      await flushPromises();
+
+      await wrapper.findComponent({ name: 'IdentityDetail' }).vm.$emit('deleted', 1);
+      await wrapper.vm.$nextTick();
+
+      expect(wrapper.text()).not.toContain('user-alice');
+      expect(wrapper.text()).toContain('user-bob');
+    });
+  });
+
+  describe('WhenEnvironmentChanges', () => {
+    it('ThenIdentitiesAreReloaded', async () => {
+      const mockEnv2: EnvironmentResponse = {
+        id: 200, name: 'Production', apiKey: 'env-prod', projectId: 10, createdAt: '2026-01-01T00:00:00Z',
+      };
+
+      jest.mocked(identitiesApi.listIdentities).mockResolvedValue({
+        count: 0, next: null, previous: null, results: [],
+      });
+
+      const contextStore = useContextStore();
+      contextStore.setOrganization({ id: 1, name: 'Acme', createdAt: '' });
+      contextStore.setProject(mockProject);
+      contextStore.setEnvironment(mockEnv);
+
+      mountView();
+      await flushPromises();
+
+      contextStore.setEnvironment(mockEnv2);
+      await flushPromises();
+
+      expect(identitiesApi.listIdentities).toHaveBeenCalledTimes(2);
+      expect(identitiesApi.listIdentities).toHaveBeenLastCalledWith(mockEnv2.apiKey, 1, 100);
+    });
+  });
+});