1. Paste Your JavaScript
Enter or paste your JS, JSX, or TypeScript code into the input textarea.
JavaScript Formatter
Output
Note
Tools:
JS Formatter
JavaScript Formatter
Processing...
Input
Output
Javascript Formatter is a free browser-based developer utility by ToolPix. All formatting, validation, and encoding tasks run 100% locally in client-side memory via JavaScript and WebAssembly — your source code, tokens, and data are never uploaded or stored on any server.
Quick Steps
2. Choose Indentation
Select your preferred indentation style: 2 spaces, 4 spaces, or tab.
3. Click Format
Click the Format button to get clean, readable, properly indented JavaScript output.
FAQ
Does this tool execute or run my JavaScript code?
No, this JavaScript formatter only formats your code for readability. It does not execute, evaluate, or run any JavaScript.
Does it support JSX and modern JS syntax?
The formatter handles standard JavaScript well. It performs basic indentation formatting on JSX and ES6+ syntax, though deeply nested JSX may need manual adjustments.
Is my JavaScript code uploaded to a server?
No. All formatting happens locally in your browser. Your source code never leaves your device, ensuring 100% privacy and security.
Can it format minified JavaScript?
Yes, paste minified JavaScript and the tool will attempt to format it with proper indentation and line breaks for readability.
Is this JS formatter tool free?
Yes, this JavaScript formatter is completely free to use with no sign-up required. Format unlimited JS files.
Related Tools
Continue the workflow with closely related ToolPix pages built for the same task cluster.
YAML Formatter
Use YAML Formatter to format, compare, and transform code. Fast developer tools with clean output and no account required.
SQL Formatter
Use SQL Formatter to format, compare, and transform code. Fast developer tools with clean output and no account required.
JSON Formatter
Format, validate, and beautify JSON data instantly in your browser. Paste raw JSON and get clean, readable output with syntax highlighting. No signup required.
HTML Formatter
Use HTML Formatter to format, compare, and transform code. Fast developer tools with clean output and no account required.
CSS Formatter
Use CSS Formatter to format, compare, and transform code. Fast developer tools with clean output and no account required.
XML Validator
Use XML Validator to format, compare, and transform code. Fast developer tools with clean output and no account required.
XML Beautifier
Use XML Beautifier to format, compare, and transform code. Fast developer tools with clean output and no account required.
Viewport Size
Use Viewport Size to format, compare, and transform code. Fast developer tools with clean output and no account required.
Guides From The Blog
Supporting tutorials and explainers that reinforce topical relevance for this page.
Code Obfuscation Complete Guide: Protect Your JavaScript in 2025
Learn code obfuscation techniques for JavaScript in 2025, including minification, string encoding, and related approaches.
Base64 Encoding Explained: How It Works, When to Use It, and Best Practices
Learn what Base64 encoding is, how it works, when to use it for data URIs and JWTs, and when not to use it, with code examples.
ToolPix AI React Compiler: Run, Build & Debug Vite React 18 Apps Online (2026)
Introducing the free online AI React Compiler by ToolPix. Build, test, and manage multi-file Vite React 18 projects directly in your browser with zero setup, npm package support, live preview, and AI assistance.
Modern JavaScript: The Complete Practical Guide to Key ES6+ Features
Master modern JavaScript (ES6+): Arrow functions, lexical this, destructuring, spread/rest operators, Promises, async/await, optional chaining, and modules with code examples.
Advertisement
main
Ready
0
UTF-8
We use cookies to enhance your experience. By continuing, you agree to our Privacy Policy & Cookies.