JavaScript Tools
JavaScript is the language of the web — both front-end and back-end. Format, minify and obfuscate JavaScript files, test regex patterns with live match highlighting, generate React and Next.js form components, use the live HTML/CSS/JS playground, and validate JavaScript syntax.
14 tools
JavaScript Formatter
Format and beautify JavaScript code online. Supports ES6+ syntax.
JSX Formatter
Format and beautify JSX (React) code online — clean, readable component output.
TSX Formatter
Format and beautify TSX (TypeScript React) code online — clean, typed component output.
JavaScript Obfuscator
Obfuscate and protect JavaScript code — Low, Medium and High presets with control flow flattening, string encoding and more
JavaScript Minifier
Minify and compress JavaScript files online — reduce file size instantly.
JSX Minifier
Minify and compress JSX (React) files online — reduce bundle size instantly.
TSX Minifier
Minify and compress TSX (TypeScript React) files online — reduce bundle size instantly.
HTML Playground
Live HTML/CSS/JS editor with instant browser preview — prototype and test HTML snippets in seconds
JavaScript Playground
Run JavaScript online in a sandboxed editor with live console output — supports ES2022+ and intercepts alert()
Regex Tester
Test JavaScript regular expressions with real-time match highlighting
Code Validator
Validate JSON, YAML, XML, JavaScript and CSS syntax with detailed error messages
React Form Generator
Generate React form components with validation
Next.js Form Generator
Generate Next.js form components with Server Actions
Angular Form Generator
Generate Angular reactive form components
About JavaScript Tools
JavaScript is the language of the web — both front-end and back-end. Format, minify and obfuscate JavaScript files, test regex patterns with live match highlighting, generate React and Next.js form components, use the live HTML/CSS/JS playground, and validate JavaScript syntax.
Common Use Cases
- Format ES6+ JavaScript code with Prettier-compatible output
- Minify JavaScript bundles for production distribution
- Obfuscate client-side code for IP protection
- Test regex patterns with real-time match highlighting
- Generate React/Next.js form components with validation
Frequently Asked Questions
QAre these JavaScript tools free?
Yes — all 14 JavaScript tools are completely free with no account, no subscription and no paywalls. All processing runs entirely in your browser.
QDoes my data get sent to a server?
No. Every JavaScript tool processes data entirely in your browser using JavaScript and WebAssembly. Nothing you paste, type or import is transmitted to any server.
QHow many JavaScript tools are available?
There are currently 14 JavaScript tools available. Browse them all on this page or use the search bar to find a specific tool.
QDo the tools work offline?
Most tools work offline once the page has loaded, since all processing is client-side. A small number of tools that fetch external assets may require an initial network connection.
See Also
- JavaScript FormatterFormat and beautify JavaScript code online. Supports ES6+ syntax.
- JSX FormatterFormat and beautify JSX (React) code online — clean, readable component output.
- TSX FormatterFormat and beautify TSX (TypeScript React) code online — clean, typed component output.
- JavaScript ObfuscatorObfuscate and protect JavaScript code — Low, Medium and High presets with control flow flattening, string encoding and more
- JavaScript MinifierMinify and compress JavaScript files online — reduce file size instantly.
- JSX MinifierMinify and compress JSX (React) files online — reduce bundle size instantly.
- TSX MinifierMinify and compress TSX (TypeScript React) files online — reduce bundle size instantly.
- HTML PlaygroundLive HTML/CSS/JS editor with instant browser preview — prototype and test HTML snippets in seconds
- JavaScript PlaygroundRun JavaScript online in a sandboxed editor with live console output — supports ES2022+ and intercepts alert()
- Regex TesterTest JavaScript regular expressions with real-time match highlighting
- Code ValidatorValidate JSON, YAML, XML, JavaScript and CSS syntax with detailed error messages
- React Form GeneratorGenerate React form components with validation