diff --git a/Makefile b/Makefile
index abec37615..bce89d87c 100644
--- a/Makefile
+++ b/Makefile
@@ -12,6 +12,7 @@ excludeLanguages ?= ''
 includePlugins ?= ''
 excludePlugins ?= ''
 singleRun ?= true
+forceSwc ?= false
 isTest ?= false
 debug ?= false
 updateTests ?= false
@@ -53,6 +54,7 @@ start dev love:
 		--env includePlugins=$(includePlugins) \
 		--env excludePlugins=$(excludePlugins) \
 		--env isTest=$(isTest) \
+		--env forceSwc=$(forceSwc) \
 		--env fat=$(fat)
 
 .PHONY: build
diff --git a/package-lock.json b/package-lock.json
index 686280aa3..09d6c1ae4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,6 +17,7 @@
 				"@eslint/js": "^9.16.0",
 				"@playwright/test": "^1.49.0",
 				"@swc/core": "^1.10.11",
+				"@swc/helpers": "^0.5.15",
 				"@types/ace": "^0.0.52",
 				"@types/fs-extra": "^11.0.4",
 				"@types/karma": "^6.3.9",
@@ -1492,6 +1493,16 @@
 			"dev": true,
 			"license": "Apache-2.0"
 		},
+		"node_modules/@swc/helpers": {
+			"version": "0.5.15",
+			"resolved": "https://registry.npmjs.org/@swc/helpers/-/helpers-0.5.15.tgz",
+			"integrity": "sha512-JQ5TuMi45Owi4/BIMAJBoSQoOJu12oOk/gADqlcUL9JEdHB8vyjUSsxqeNXnmXHjYKMi2WcYtezGEEhqUI/E2g==",
+			"dev": true,
+			"license": "Apache-2.0",
+			"dependencies": {
+				"tslib": "^2.8.0"
+			}
+		},
 		"node_modules/@swc/types": {
 			"version": "0.1.17",
 			"resolved": "https://registry.npmjs.org/@swc/types/-/types-0.1.17.tgz",
diff --git a/package.json b/package.json
index 92138089e..51e776ec6 100644
--- a/package.json
+++ b/package.json
@@ -55,6 +55,7 @@
 		"@eslint/js": "^9.16.0",
 		"@playwright/test": "^1.49.0",
 		"@swc/core": "^1.10.11",
+		"@swc/helpers": "^0.5.15",
 		"@types/ace": "^0.0.52",
 		"@types/fs-extra": "^11.0.4",
 		"@types/karma": "^6.3.9",
diff --git a/src/config.ts b/src/config.ts
index 0a1d731b5..d2fc8ed5b 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -18,6 +18,7 @@
  * @module config
  */
 
+// eslint-disable-next-line max-classes-per-file
 import * as consts from 'jodit/core/constants';
 import {
 	globalDocument,
@@ -39,11 +40,22 @@ import type {
 	Nullable
 } from './types';
 
+class ProtoConfig {
+	/**
+	 * Behavior for buttons
+	 */
+	controls: Controls = {};
+}
+
+ProtoConfig.prototype.controls = {};
+
 /**
  * Default Editor's Configuration
  */
-class Config implements IViewOptions {
-	private constructor() {}
+class Config extends ProtoConfig implements IViewOptions {
+	private constructor() {
+		super();
+	}
 
 	/**
 	 * Use cache for heavy methods
@@ -940,11 +952,6 @@ class Config implements IViewOptions {
 		}
 	];
 
-	/**
-	 * Behavior for buttons
-	 */
-	controls!: Controls;
-
 	/**
 	 * Some events are called when the editor is initialized, for example, the `afterInit` event.
 	 * So this code won't work:
@@ -998,6 +1005,4 @@ class Config implements IViewOptions {
 	}
 }
 
-Config.prototype.controls = {};
-
 export { Config };
diff --git a/src/core/helpers/utils/assert.ts b/src/core/helpers/utils/assert.ts
index a120e1dff..df9590037 100644
--- a/src/core/helpers/utils/assert.ts
+++ b/src/core/helpers/utils/assert.ts
@@ -4,6 +4,8 @@
  * Copyright (c) 2013-2025 Valeriy Chupurnov. All rights reserved. https://xdsoft.net
  */
 
+import { IS_PROD } from 'jodit/core/constants';
+
 /**
  * @module helpers/utils
  */
@@ -20,6 +22,10 @@ function assert<T>(
 	condition: T | false | 0 | '' | null | undefined,
 	message: string
 ): asserts condition {
+	if (IS_PROD) {
+		return;
+	}
+
 	if (!condition) {
 		throw new AssertionError(`Assertion failed: ${message}`);
 	}
diff --git a/src/jodit.ts b/src/jodit.ts
index efb922610..6fd7dbdc3 100644
--- a/src/jodit.ts
+++ b/src/jodit.ts
@@ -1267,8 +1267,10 @@ export class Jodit extends ViewWithToolbar implements IJodit, Dlgs {
 		});
 	}
 
-	currentPlace!: IWorkPlace;
-	places!: IWorkPlace[];
+	currentPlace: IWorkPlace = {
+		options: this.options
+	} as any;
+	places: IWorkPlace[] = [];
 
 	private readonly __elementToPlace: Map<HTMLElement, IWorkPlace> = new Map();
 
diff --git a/tools/rules/internal-typescript.ts b/tools/rules/internal-typescript.ts
index 97b85263e..5bccc8f2f 100644
--- a/tools/rules/internal-typescript.ts
+++ b/tools/rules/internal-typescript.ts
@@ -20,14 +20,35 @@ export default (
 		isProd,
 		isTest,
 		fat,
-		superDirname
+		superDirname,
+		uglify,
+		forceSwc
 	}: Variables,
 	cwd: string
 ): RuleSetRule => {
-	return {
-		test: /\.(js|ts)$/,
-		use: [
-			{
+	const useSWC = (isProd && !isTest && !generateTypes) || forceSwc;
+	if (useSWC) {
+		console.info('Use SWC');
+	}
+
+	const loader = useSWC
+		? {
+				loader: 'swc-loader',
+				options: {
+					jsc: {
+						target: ES,
+						parser: {
+							syntax: 'typescript',
+							tsx: false,
+							dynamicImport: false,
+							decorators: true
+						}
+						// externalHelpers: true
+					},
+					minify: uglify
+				}
+			}
+		: {
 				loader: 'ts-loader',
 				options: {
 					transpileOnly: isProd && !isTest && !generateTypes,
@@ -39,11 +60,16 @@ export default (
 						declaration: true,
 						declarationDir: path.resolve(dirname, './build/types')
 					},
-					getCustomTransformers: (program: ts.Program) => ({
+					getCustomTransformers: (): unknown => ({
 						before: isProd && !isTest ? [removeAsserts()] : []
 					})
 				}
-			},
+			};
+
+	return {
+		test: /\.(js|ts)$/,
+		use: [
+			loader,
 			{
 				loader: path.resolve(
 					superDirname,
diff --git a/tools/variables.ts b/tools/variables.ts
index 75bdb90a3..39ccd15ec 100644
--- a/tools/variables.ts
+++ b/tools/variables.ts
@@ -12,6 +12,7 @@ function Bool(str: string | boolean | undefined): boolean {
 
 export type ES_TARGET = 'es5' | 'es2015' | 'es2018' | 'es2021';
 export type Argv = {
+	forceSwc?: boolean;
 	WEBPACK_SERVE?: boolean;
 	filename?: (name: string) => string;
 	env: object;
@@ -33,6 +34,7 @@ export type Argv = {
 
 export type Variables = {
 	argv: { filename?: (name: string) => string };
+	forceSwc?: boolean;
 	exclude: string[];
 	/**
 	 * Path to root Jodit directory
@@ -119,6 +121,7 @@ export const variables = (argv: Argv, dir: string): Variables => {
 			? parseInt(process.env.WEBPACK_DEV_PORT)
 			: 2000,
 		argv,
+		forceSwc: Bool(argv.forceSwc),
 		onlyTS: false, // TODO
 		exclude,
 		generateTypes: Bool(argv.generateTypes),