diff --git a/src/api/hooks/groups/useGroups.test.ts b/src/api/hooks/groups/useGroups.test.ts
index 950c4eb81..65a699969 100644
--- a/src/api/hooks/groups/useGroups.test.ts
+++ b/src/api/hooks/groups/useGroups.test.ts
@@ -1,13 +1,13 @@
 import { __stub } from 'soapbox/api';
 import { buildGroup } from 'soapbox/jest/factory';
 import { renderHook, waitFor } from 'soapbox/jest/test-helpers';
-import { normalizeInstance } from 'soapbox/normalizers';
+import { instanceSchema } from 'soapbox/schemas';
 
 import { useGroups } from './useGroups';
 
 const group = buildGroup({ id: '1', display_name: 'soapbox' });
 const store = {
-  instance: normalizeInstance({
+  instance: instanceSchema.parse({
     version: '3.4.1 (compatible; TruthSocial 1.0.0+unreleased)',
   }),
 };
diff --git a/src/api/hooks/groups/usePendingGroups.test.ts b/src/api/hooks/groups/usePendingGroups.test.ts
index f2f76178c..33190ae0b 100644
--- a/src/api/hooks/groups/usePendingGroups.test.ts
+++ b/src/api/hooks/groups/usePendingGroups.test.ts
@@ -2,14 +2,14 @@ import { __stub } from 'soapbox/api';
 import { Entities } from 'soapbox/entity-store/entities';
 import { buildAccount, buildGroup } from 'soapbox/jest/factory';
 import { renderHook, waitFor } from 'soapbox/jest/test-helpers';
-import { normalizeInstance } from 'soapbox/normalizers';
+import { instanceSchema } from 'soapbox/schemas';
 
 import { usePendingGroups } from './usePendingGroups';
 
 const id = '1';
 const group = buildGroup({ id, display_name: 'soapbox' });
 const store = {
-  instance: normalizeInstance({
+  instance: instanceSchema.parse({
     version: '3.4.1 (compatible; TruthSocial 1.0.0+unreleased)',
   }),
   me: '1',
diff --git a/src/features/auth-login/components/login-form.test.tsx b/src/features/auth-login/components/login-form.test.tsx
index cb14335c2..2cecaa059 100644
--- a/src/features/auth-login/components/login-form.test.tsx
+++ b/src/features/auth-login/components/login-form.test.tsx
@@ -1,7 +1,7 @@
 import React from 'react';
 
 import { fireEvent, render, screen } from 'soapbox/jest/test-helpers';
-import { normalizeInstance } from 'soapbox/normalizers';
+import { instanceSchema } from 'soapbox/schemas';
 
 import LoginForm from './login-form';
 
@@ -9,7 +9,7 @@ describe('<LoginForm />', () => {
   it('renders for Pleroma', () => {
     const mockFn = vi.fn();
     const store = {
-      instance: normalizeInstance({
+      instance: instanceSchema.parse({
         version: '2.7.2 (compatible; Pleroma 2.3.0)',
       }),
     };
@@ -22,7 +22,7 @@ describe('<LoginForm />', () => {
   it('renders for Mastodon', () => {
     const mockFn = vi.fn();
     const store = {
-      instance: normalizeInstance({
+      instance: instanceSchema.parse({
         version: '3.0.0',
       }),
     };
diff --git a/src/features/auth-login/components/login-page.test.tsx b/src/features/auth-login/components/login-page.test.tsx
index 58538bebf..fc308ff4f 100644
--- a/src/features/auth-login/components/login-page.test.tsx
+++ b/src/features/auth-login/components/login-page.test.tsx
@@ -1,14 +1,14 @@
 import React from 'react';
 
 import { render, screen } from 'soapbox/jest/test-helpers';
-import { normalizeInstance } from 'soapbox/normalizers';
+import { instanceSchema } from 'soapbox/schemas';
 
 import LoginPage from './login-page';
 
 describe('<LoginPage />', () => {
   it('renders correctly on load', () => {
     const store = {
-      instance: normalizeInstance({
+      instance: instanceSchema.parse({
         version: '2.7.2 (compatible; Pleroma 2.3.0)',
       }),
     };
diff --git a/src/features/groups/components/discover/search/search.test.tsx b/src/features/groups/components/discover/search/search.test.tsx
index f7dbafa3d..5c25cc5a3 100644
--- a/src/features/groups/components/discover/search/search.test.tsx
+++ b/src/features/groups/components/discover/search/search.test.tsx
@@ -3,12 +3,12 @@ import React from 'react';
 import { __stub } from 'soapbox/api';
 import { buildGroup } from 'soapbox/jest/factory';
 import { render, screen, waitFor } from 'soapbox/jest/test-helpers';
-import { normalizeInstance } from 'soapbox/normalizers';
+import { instanceSchema } from 'soapbox/schemas';
 
 import Search from './search';
 
 const store = {
-  instance: normalizeInstance({
+  instance: instanceSchema.parse({
     version: '3.4.1 (compatible; TruthSocial 1.0.0+unreleased)',
   }),
 };
diff --git a/src/features/groups/discover.test.tsx b/src/features/groups/discover.test.tsx
index 1f14f1022..880b17c1c 100644
--- a/src/features/groups/discover.test.tsx
+++ b/src/features/groups/discover.test.tsx
@@ -3,7 +3,7 @@ import React from 'react';
 
 import { buildAccount } from 'soapbox/jest/factory';
 import { render, screen, waitFor } from 'soapbox/jest/test-helpers';
-import { normalizeInstance } from 'soapbox/normalizers';
+import { instanceSchema } from 'soapbox/schemas';
 
 import Discover from './discover';
 
@@ -32,7 +32,7 @@ const store: any = {
       },
     }),
   },
-  instance: normalizeInstance({
+  instance: instanceSchema.parse({
     version: '3.4.1 (compatible; TruthSocial 1.0.0)',
     software: 'TRUTHSOCIAL',
   }),
diff --git a/src/hooks/useGroupsPath.test.ts b/src/hooks/useGroupsPath.test.ts
index a7ba8979b..72af53731 100644
--- a/src/hooks/useGroupsPath.test.ts
+++ b/src/hooks/useGroupsPath.test.ts
@@ -1,14 +1,14 @@
 import { __stub } from 'soapbox/api';
 import { buildAccount, buildGroup, buildGroupRelationship } from 'soapbox/jest/factory';
 import { renderHook, waitFor } from 'soapbox/jest/test-helpers';
-import { normalizeInstance } from 'soapbox/normalizers';
+import { instanceSchema } from 'soapbox/schemas';
 
 import { useGroupsPath } from './useGroupsPath';
 
 describe('useGroupsPath()', () => {
   test('without the groupsDiscovery feature', () => {
     const store = {
-      instance: normalizeInstance({
+      instance: instanceSchema.parse({
         version: '2.7.2 (compatible; Pleroma 2.3.0)',
       }),
     };
@@ -24,7 +24,7 @@ describe('useGroupsPath()', () => {
     beforeEach(() => {
       const userId = '1';
       store = {
-        instance: normalizeInstance({
+        instance: instanceSchema.parse({
           version: '3.4.1 (compatible; TruthSocial 1.0.0+unreleased)',
         }),
         me: userId,
diff --git a/src/jest/mock-stores.tsx b/src/jest/mock-stores.tsx
index 0dc4bae79..c3ba64aac 100644
--- a/src/jest/mock-stores.tsx
+++ b/src/jest/mock-stores.tsx
@@ -1,13 +1,13 @@
 import alexJson from 'soapbox/__fixtures__/pleroma-account.json';
-import { normalizeInstance } from 'soapbox/normalizers';
+import { instanceSchema } from 'soapbox/schemas';
 
 import { buildAccount } from './factory';
 
 /** Store with registrations open. */
-const storeOpen = { instance: normalizeInstance({ registrations: true }) };
+const storeOpen = { instance: instanceSchema.parse({ registrations: true }) };
 
 /** Store with registrations closed. */
-const storeClosed = { instance: normalizeInstance({ registrations: false }) };
+const storeClosed = { instance: instanceSchema.parse({ registrations: false }) };
 
 /** Store with a logged-in user. */
 const storeLoggedIn = {
diff --git a/src/normalizers/index.ts b/src/normalizers/index.ts
index 12bb77d0c..03fb83021 100644
--- a/src/normalizers/index.ts
+++ b/src/normalizers/index.ts
@@ -13,7 +13,6 @@ export { FilterStatusRecord, normalizeFilterStatus } from './filter-status';
 export { normalizeGroup } from './group';
 export { GroupRelationshipRecord, normalizeGroupRelationship } from './group-relationship';
 export { HistoryRecord, normalizeHistory } from './history';
-export { InstanceRecord, normalizeInstance } from './instance';
 export { ListRecord, normalizeList } from './list';
 export { LocationRecord, normalizeLocation } from './location';
 export { MentionRecord, normalizeMention } from './mention';
diff --git a/src/normalizers/instance.test.ts b/src/normalizers/instance.test.ts
deleted file mode 100644
index 46793dfaf..000000000
--- a/src/normalizers/instance.test.ts
+++ /dev/null
@@ -1,214 +0,0 @@
-import { Map as ImmutableMap, fromJS } from 'immutable';
-
-import { normalizeInstance } from './instance';
-
-describe('normalizeInstance()', () => {
-  it('normalizes an empty Map', () => {
-    const expected = {
-      approval_required: false,
-      contact_account: {},
-      configuration: {
-        media_attachments: {},
-        chats: {
-          max_characters: 5000,
-          max_media_attachments: 1,
-        },
-        polls: {
-          max_options: 4,
-          max_characters_per_option: 25,
-          min_expiration: 300,
-          max_expiration: 2629746,
-        },
-        statuses: {
-          max_characters: 500,
-          max_media_attachments: 4,
-        },
-        groups: {
-          max_characters_name: 50,
-          max_characters_description: 160,
-        },
-      },
-      description: '',
-      description_limit: 1500,
-      email: '',
-      feature_quote: false,
-      fedibird_capabilities: [],
-      invites_enabled: false,
-      languages: [],
-      login_message: '',
-      pleroma: {
-        metadata: {
-          account_activation_required: false,
-          birthday_min_age: 0,
-          birthday_required: false,
-          features: [],
-          federation: {
-            enabled: true,
-            exclusions: false,
-          },
-        },
-        stats: {},
-      },
-      registrations: false,
-      rules: [],
-      short_description: '',
-      stats: {
-        domain_count: 0,
-        status_count: 0,
-        user_count: 0,
-      },
-      title: '',
-      thumbnail: '',
-      uri: '',
-      urls: {},
-      version: '0.0.0',
-      nostr: {
-        pubkey: undefined,
-        relay: undefined,
-      },
-    };
-
-    const result = normalizeInstance(ImmutableMap());
-    expect(result.toJS()).toEqual(expected);
-  });
-
-  it('normalizes Pleroma instance with Mastodon configuration format', async () => {
-    const instance = await import('soapbox/__fixtures__/pleroma-instance.json');
-
-    const expected = {
-      configuration: {
-        statuses: {
-          max_characters: 5000,
-          max_media_attachments: Infinity,
-        },
-        polls: {
-          max_options: 20,
-          max_characters_per_option: 200,
-          min_expiration: 0,
-          max_expiration: 31536000,
-        },
-      },
-    };
-
-    const result = normalizeInstance(instance);
-    expect(result.toJS()).toMatchObject(expected);
-  });
-
-  it('normalizes Mastodon instance with retained configuration', async () => {
-    const instance = await import('soapbox/__fixtures__/mastodon-instance.json');
-
-    const expected = {
-      configuration: {
-        statuses: {
-          max_characters: 500,
-          max_media_attachments: 4,
-          characters_reserved_per_url: 23,
-        },
-        media_attachments: {
-          image_size_limit: 10485760,
-          image_matrix_limit: 16777216,
-          video_size_limit: 41943040,
-          video_frame_rate_limit: 60,
-          video_matrix_limit: 2304000,
-        },
-        polls: {
-          max_options: 4,
-          max_characters_per_option: 50,
-          min_expiration: 300,
-          max_expiration: 2629746,
-        },
-      },
-    };
-
-    const result = normalizeInstance(instance);
-    expect(result.toJS()).toMatchObject(expected);
-  });
-
-  it('normalizes Mastodon 3.0.0 instance with default configuration', async () => {
-    const instance = await import('soapbox/__fixtures__/mastodon-3.0.0-instance.json');
-
-    const expected = {
-      configuration: {
-        statuses: {
-          max_characters: 500,
-          max_media_attachments: 4,
-        },
-        polls: {
-          max_options: 4,
-          max_characters_per_option: 25,
-          min_expiration: 300,
-          max_expiration: 2629746,
-        },
-      },
-    };
-
-    const result = normalizeInstance(instance);
-    expect(result.toJS()).toMatchObject(expected);
-  });
-
-  it('normalizes Fedibird instance', async () => {
-    const instance = await import('soapbox/__fixtures__/fedibird-instance.json');
-    const result = normalizeInstance(instance);
-
-    // Sets description_limit
-    expect(result.description_limit).toEqual(1500);
-
-    // Preserves fedibird_capabilities
-    expect(result.fedibird_capabilities).toEqual(fromJS(instance.fedibird_capabilities));
-  });
-
-  it('normalizes Mitra instance', async () => {
-    const instance = await import('soapbox/__fixtures__/mitra-instance.json');
-    const result = normalizeInstance(instance);
-
-    // Adds configuration and description_limit
-    expect(result.get('configuration') instanceof ImmutableMap).toBe(true);
-    expect(result.get('description_limit')).toBe(1500);
-  });
-
-  it('normalizes GoToSocial instance', async () => {
-    const instance = await import('soapbox/__fixtures__/gotosocial-instance.json');
-    const result = normalizeInstance(instance);
-
-    // Normalizes max_toot_chars
-    expect(result.getIn(['configuration', 'statuses', 'max_characters'])).toEqual(5000);
-    expect(result.has('max_toot_chars')).toBe(false);
-
-    // Adds configuration and description_limit
-    expect(result.get('configuration') instanceof ImmutableMap).toBe(true);
-    expect(result.get('description_limit')).toBe(1500);
-  });
-
-  it('normalizes Friendica instance', async () => {
-    const instance = await import('soapbox/__fixtures__/friendica-instance.json');
-    const result = normalizeInstance(instance);
-
-    // Normalizes max_toot_chars
-    expect(result.getIn(['configuration', 'statuses', 'max_characters'])).toEqual(200000);
-    expect(result.has('max_toot_chars')).toBe(false);
-
-    // Adds configuration and description_limit
-    expect(result.get('configuration') instanceof ImmutableMap).toBe(true);
-    expect(result.get('description_limit')).toBe(1500);
-  });
-
-  it('normalizes a Mastodon RC version', async () => {
-    const instance = await import('soapbox/__fixtures__/mastodon-instance-rc.json');
-    const result = normalizeInstance(instance);
-
-    expect(result.version).toEqual('3.5.0-rc1');
-  });
-
-  it('normalizes Pixelfed instance', async () => {
-    const instance = await import('soapbox/__fixtures__/pixelfed-instance.json');
-    const result = normalizeInstance(instance);
-    expect(result.title).toBe('pixelfed');
-  });
-
-  it('renames Akkoma to Pleroma', async () => {
-    const instance = await import('soapbox/__fixtures__/akkoma-instance.json');
-    const result = normalizeInstance(instance);
-
-    expect(result.version).toEqual('2.7.2 (compatible; Pleroma 2.4.50+akkoma)');
-  });
-});
diff --git a/src/normalizers/instance.ts b/src/normalizers/instance.ts
deleted file mode 100644
index ea3327fb6..000000000
--- a/src/normalizers/instance.ts
+++ /dev/null
@@ -1,164 +0,0 @@
-/**
- * Instance normalizer:
- * Converts API instances into our internal format.
- * @see {@link https://docs.joinmastodon.org/entities/instance/}
- */
-import {
-  Map as ImmutableMap,
-  List as ImmutableList,
-  Record as ImmutableRecord,
-  fromJS,
-} from 'immutable';
-
-import { parseVersion, PLEROMA } from 'soapbox/utils/features';
-import { mergeDefined } from 'soapbox/utils/normalizers';
-import { isNumber } from 'soapbox/utils/numbers';
-
-// Use Mastodon defaults
-// https://docs.joinmastodon.org/entities/instance/
-export const InstanceRecord = ImmutableRecord({
-  approval_required: false,
-  contact_account: ImmutableMap<string, any>(),
-  configuration: ImmutableMap<string, any>({
-    media_attachments: ImmutableMap<string, any>(),
-    chats: ImmutableMap<string, number>({
-      max_characters: 5000,
-      max_media_attachments: 1,
-    }),
-    polls: ImmutableMap<string, number>({
-      max_options: 4,
-      max_characters_per_option: 25,
-      min_expiration: 300,
-      max_expiration: 2629746,
-    }),
-    statuses: ImmutableMap<string, number>({
-      max_characters: 500,
-      max_media_attachments: 4,
-    }),
-    groups: ImmutableMap<string, number>({
-      max_characters_name: 50,
-      max_characters_description: 160,
-    }),
-  }),
-  description: '',
-  description_limit: 1500,
-  email: '',
-  feature_quote: false,
-  fedibird_capabilities: ImmutableList(),
-  invites_enabled: false,
-  languages: ImmutableList(),
-  login_message: '',
-  pleroma: ImmutableMap<string, any>({
-    metadata: ImmutableMap<string, any>({
-      account_activation_required: false,
-      birthday_min_age: 0,
-      birthday_required: false,
-      features: ImmutableList(),
-      federation: ImmutableMap<string, any>({
-        enabled: true,
-        exclusions: false,
-      }),
-    }),
-    stats: ImmutableMap(),
-  }),
-  registrations: false,
-  rules: ImmutableList(),
-  short_description: '',
-  stats: ImmutableMap<string, number>({
-    domain_count: 0,
-    status_count: 0,
-    user_count: 0,
-  }),
-  nostr: ImmutableMap<string, any>({
-    relay: undefined as string | undefined,
-    pubkey: undefined as string | undefined,
-  }),
-  title: '',
-  thumbnail: '',
-  uri: '',
-  urls: ImmutableMap<string, string>(),
-  version: '0.0.0',
-});
-
-// Build Mastodon configuration from Pleroma instance
-const pleromaToMastodonConfig = (instance: ImmutableMap<string, any>) => {
-  return ImmutableMap({
-    statuses: ImmutableMap({
-      max_characters: instance.get('max_toot_chars'),
-    }),
-    polls: ImmutableMap({
-      max_options: instance.getIn(['poll_limits', 'max_options']),
-      max_characters_per_option: instance.getIn(['poll_limits', 'max_option_chars']),
-      min_expiration: instance.getIn(['poll_limits', 'min_expiration']),
-      max_expiration: instance.getIn(['poll_limits', 'max_expiration']),
-    }),
-  });
-};
-
-// Get the software's default attachment limit
-const getAttachmentLimit = (software: string | null) => software === PLEROMA ? Infinity : 4;
-
-// Normalize version
-const normalizeVersion = (instance: ImmutableMap<string, any>) => {
-  return instance.update('version', '0.0.0', version => {
-    // Handle Mastodon release candidates
-    if (new RegExp(/[0-9.]+rc[0-9]+/g).test(version)) {
-      return version.split('rc').join('-rc');
-    } else {
-      return version;
-    }
-  });
-};
-
-/** Rename Akkoma to Pleroma+akkoma */
-const fixAkkoma = (instance: ImmutableMap<string, any>) => {
-  const version: string = instance.get('version', '');
-
-  if (version.includes('Akkoma')) {
-    return instance.set('version', '2.7.2 (compatible; Pleroma 2.4.50+akkoma)');
-  } else {
-    return instance;
-  }
-};
-
-/** Set Takahē version to a Pleroma-like string */
-const fixTakahe = (instance: ImmutableMap<string, any>) => {
-  const version: string = instance.get('version', '');
-
-  if (version.startsWith('takahe/')) {
-    return instance.set('version', `0.0.0 (compatible; Takahe ${version.slice(7)})`);
-  } else {
-    return instance;
-  }
-};
-
-// Normalize instance (Pleroma, Mastodon, etc.) to Mastodon's format
-export const normalizeInstance = (instance: Record<string, any>) => {
-  return InstanceRecord(
-    ImmutableMap(fromJS(instance)).withMutations((instance: ImmutableMap<string, any>) => {
-      const { software } = parseVersion(instance.get('version'));
-      const mastodonConfig = pleromaToMastodonConfig(instance);
-
-      // Merge configuration
-      instance.update('configuration', ImmutableMap(), configuration => (
-        configuration.mergeDeepWith(mergeDefined, mastodonConfig)
-      ));
-
-      // If max attachments isn't set, check the backend software
-      instance.updateIn(['configuration', 'statuses', 'max_media_attachments'], value => {
-        return isNumber(value) ? value : getAttachmentLimit(software);
-      });
-
-      // Urls can't be null, fix for Friendica
-      if (instance.get('urls') === null) instance.delete('urls');
-
-      // Normalize version
-      normalizeVersion(instance);
-      fixTakahe(instance);
-      fixAkkoma(instance);
-
-      // Merge defaults
-      instance.mergeDeepWith(mergeDefined, InstanceRecord());
-    }),
-  );
-};
diff --git a/src/types/entities.ts b/src/types/entities.ts
index 20eb419af..98d36a07c 100644
--- a/src/types/entities.ts
+++ b/src/types/entities.ts
@@ -12,7 +12,6 @@ import {
   FilterKeywordRecord,
   FilterStatusRecord,
   HistoryRecord,
-  InstanceRecord,
   ListRecord,
   LocationRecord,
   MentionRecord,
@@ -41,7 +40,6 @@ type Filter = ReturnType<typeof FilterRecord>;
 type FilterKeyword = ReturnType<typeof FilterKeywordRecord>;
 type FilterStatus = ReturnType<typeof FilterStatusRecord>;
 type History = ReturnType<typeof HistoryRecord>;
-type Instance = ReturnType<typeof InstanceRecord>;
 type List = ReturnType<typeof ListRecord>;
 type Location = ReturnType<typeof LocationRecord>;
 type Mention = ReturnType<typeof MentionRecord>;
@@ -77,7 +75,6 @@ export {
   FilterKeyword,
   FilterStatus,
   History,
-  Instance,
   List,
   Location,
   Mention,