diff --git a/CHANGELOG.md b/CHANGELOG.md
index 63da0a5fef..2bc6c42e07 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,6 +31,7 @@ You should also include the user name that made the change.
 #### For users
 - ノートのウォッチ機能が削除されました
 - アンケートに投票された際に通知が作成されなくなりました
+- ノートの数式埋め込みが削除されました
 - 新たに動的なPagesを作ることはできなくなりました
 	- 代わりにAiScriptを用いてより柔軟に動的なコンテンツを作成できるMisskey Play機能が実装されています。
 - AiScriptが0.12.2にアップデートされました
diff --git a/packages/frontend/package.json b/packages/frontend/package.json
index 72a9532c61..0c33ada766 100644
--- a/packages/frontend/package.json
+++ b/packages/frontend/package.json
@@ -36,7 +36,6 @@
 		"insert-text-at-cursor": "0.3.0",
 		"is-file-animated": "1.0.2",
 		"json5": "2.2.3",
-		"katex": "0.16.4",
 		"matter-js": "0.18.0",
 		"mfm-js": "0.23.1",
 		"misskey-js": "0.0.14",
@@ -73,7 +72,6 @@
 		"@types/glob": "8.0.0",
 		"@types/gulp": "4.0.10",
 		"@types/gulp-rename": "2.0.1",
-		"@types/katex": "0.16.0",
 		"@types/matter-js": "0.18.2",
 		"@types/punycode": "2.1.0",
 		"@types/sanitize-html": "^2.8.0",
diff --git a/packages/frontend/src/components/MkFormula.vue b/packages/frontend/src/components/MkFormula.vue
deleted file mode 100644
index 65a2fee930..0000000000
--- a/packages/frontend/src/components/MkFormula.vue
+++ /dev/null
@@ -1,24 +0,0 @@
-<template>
-<XFormula :formula="formula" :block="block"/>
-</template>
-
-<script lang="ts">
-import { defineComponent, defineAsyncComponent } from 'vue';
-import * as os from '@/os';
-
-export default defineComponent({
-	components: {
-		XFormula: defineAsyncComponent(() => import('@/components/MkFormulaCore.vue')),
-	},
-	props: {
-		formula: {
-			type: String,
-			required: true,
-		},
-		block: {
-			type: Boolean,
-			required: true,
-		},
-	},
-});
-</script>
diff --git a/packages/frontend/src/components/MkFormulaCore.vue b/packages/frontend/src/components/MkFormulaCore.vue
deleted file mode 100644
index 6028db9e64..0000000000
--- a/packages/frontend/src/components/MkFormulaCore.vue
+++ /dev/null
@@ -1,34 +0,0 @@
-<!-- eslint-disable vue/no-v-html -->
-<template>
-<div v-if="block" v-html="compiledFormula"></div>
-<span v-else v-html="compiledFormula"></span>
-</template>
-
-<script lang="ts">
-import { defineComponent } from 'vue';
-import katex from 'katex';
-
-export default defineComponent({
-	props: {
-		formula: {
-			type: String,
-			required: true,
-		},
-		block: {
-			type: Boolean,
-			required: true,
-		},
-	},
-	computed: {
-		compiledFormula(): any {
-			return katex.renderToString(this.formula, {
-				throwOnError: false,
-			} as any);
-		},
-	},
-});
-</script>
-
-<style>
-@import "../../node_modules/katex/dist/katex.min.css";
-</style>
diff --git a/packages/frontend/src/components/mfm.ts b/packages/frontend/src/components/mfm.ts
index d248ec9f43..49d08b3482 100644
--- a/packages/frontend/src/components/mfm.ts
+++ b/packages/frontend/src/components/mfm.ts
@@ -5,7 +5,6 @@ import MkLink from '@/components/MkLink.vue';
 import MkMention from '@/components/MkMention.vue';
 import MkEmoji from '@/components/global/MkEmoji.vue';
 import { concat } from '@/scripts/array';
-import MkFormula from '@/components/MkFormula.vue';
 import MkCode from '@/components/MkCode.vue';
 import MkGoogle from '@/components/MkGoogle.vue';
 import MkSparkle from '@/components/MkSparkle.vue';
@@ -273,7 +272,7 @@ export default defineComponent({
 						key: Math.random(),
 						emoji: `:${token.props.name}:`,
 						normal: this.plain,
-						host: this.author?.host,
+						host: this.author.host,
 					})];
 				}
 
@@ -286,19 +285,11 @@ export default defineComponent({
 				}
 
 				case 'mathInline': {
-					return [h(MkFormula, {
-						key: Math.random(),
-						formula: token.props.formula,
-						block: false,
-					})];
+					return [h('code', genEl(token.props.formula))];
 				}
 
 				case 'mathBlock': {
-					return [h(MkFormula, {
-						key: Math.random(),
-						formula: token.props.formula,
-						block: true,
-					})];
+					return [h('code', genEl(token.props.formula))];
 				}
 
 				case 'search': {
diff --git a/packages/frontend/src/pages/mfm-cheat-sheet.vue b/packages/frontend/src/pages/mfm-cheat-sheet.vue
index 4dde3f2666..b3932ff7ce 100644
--- a/packages/frontend/src/pages/mfm-cheat-sheet.vue
+++ b/packages/frontend/src/pages/mfm-cheat-sheet.vue
@@ -114,16 +114,6 @@
 					</div>
 				</div>
 			</div>
-			<div class="section">
-				<div class="title">{{ i18n.ts._mfm.inlineMath }}</div>
-				<div class="content">
-					<p>{{ i18n.ts._mfm.inlineMathDescription }}</p>
-					<div class="preview">
-						<Mfm :text="preview_inlineMath"/>
-						<MkTextarea v-model="preview_inlineMath"><template #label>MFM</template></MkTextarea>
-					</div>
-				</div>
-			</div>
 			<!-- deprecated
 		<div class="section">
 			<div class="title">{{ i18n.ts._mfm.search }}</div>
@@ -329,7 +319,6 @@ let preview_small = $ref(`<small>${i18n.ts._mfm.dummy}</small>`);
 let preview_center = $ref(`<center>${i18n.ts._mfm.dummy}</center>`);
 let preview_inlineCode = $ref('`<: "Hello, world!"`');
 let preview_blockCode = $ref('```\n~ (#i, 100) {\n\t<: ? ((i % 15) = 0) "FizzBuzz"\n\t\t.? ((i % 3) = 0) "Fizz"\n\t\t.? ((i % 5) = 0) "Buzz"\n\t\t. i\n}\n```');
-let preview_inlineMath = $ref('\\(x= \\frac{-b\' \\pm \\sqrt{(b\')^2-ac}}{a}\\)');
 let preview_quote = $ref(`> ${i18n.ts._mfm.dummy}`);
 let preview_search = $ref(`${i18n.ts._mfm.dummy} 検索`);
 let preview_jelly = $ref('$[jelly 🍮] $[jelly.speed=5s 🍮]');
diff --git a/yarn.lock b/yarn.lock
index c46e744c3d..2e45bc1440 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2445,13 +2445,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/katex@npm:0.16.0":
-  version: 0.16.0
-  resolution: "@types/katex@npm:0.16.0"
-  checksum: f93ceb2496621d18a28252264c0b7f5b0bdf125f9dc92d1adfbd9bf00942cd2918de336fae628d3929e615aaf84b7adb1781711c4e4605664be0827b1013ec14
-  languageName: node
-  linkType: hard
-
 "@types/keyv@npm:^3.1.4":
   version: 3.1.4
   resolution: "@types/keyv@npm:3.1.4"
@@ -5436,13 +5429,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"commander@npm:^8.0.0":
-  version: 8.3.0
-  resolution: "commander@npm:8.3.0"
-  checksum: 0f82321821fc27b83bd409510bb9deeebcfa799ff0bf5d102128b500b7af22872c0c92cb6a0ebc5a4cf19c6b550fba9cedfa7329d18c6442a625f851377bacf0
-  languageName: node
-  linkType: hard
-
 "commander@npm:^9.0.0":
   version: 9.4.1
   resolution: "commander@npm:9.4.1"
@@ -8049,7 +8035,6 @@ __metadata:
     "@types/glob": 8.0.0
     "@types/gulp": 4.0.10
     "@types/gulp-rename": 2.0.1
-    "@types/katex": 0.16.0
     "@types/matter-js": 0.18.2
     "@types/punycode": 2.1.0
     "@types/sanitize-html": ^2.8.0
@@ -8090,7 +8075,6 @@ __metadata:
     insert-text-at-cursor: 0.3.0
     is-file-animated: 1.0.2
     json5: 2.2.3
-    katex: 0.16.4
     matter-js: 0.18.0
     mfm-js: 0.23.1
     misskey-js: 0.0.14
@@ -10921,17 +10905,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"katex@npm:0.16.4":
-  version: 0.16.4
-  resolution: "katex@npm:0.16.4"
-  dependencies:
-    commander: ^8.0.0
-  bin:
-    katex: cli.js
-  checksum: 94eaf1fbd8365792308527695c09baa6d2d84e2d0170e4af44fb12be3ed403fb3430caff2410117f2f1a9dfdb329f61ab9611d97e645d9c89ee60940698a45cc
-  languageName: node
-  linkType: hard
-
 "keygrip@npm:~1.1.0":
   version: 1.1.0
   resolution: "keygrip@npm:1.1.0"