Format and beautify code: JSON, SQL, HTML, CSS, JS, XML
All 33 formatters run entirely in your browser — your code is never sent to a server. Each tool supports instant formatting with configurable indentation, syntax highlighting, and one-click clipboard copy. The JSON, YAML, XML and TOML formatters also include interactive tree view and D3-powered graph view so you can explore nested data structures visually.
Format and pretty-print JSON online. Instant beautification with syntax highlighting.
Format SQL queries instantly — supports MySQL, PostgreSQL, standard SQL and more.
Format and indent HTML markup instantly — clean, readable code output.
Format and beautify CSS stylesheets with proper indentation and structure.
Format and beautify JavaScript code online. Supports ES6+ syntax.
Format and beautify TypeScript code online. Clean, consistently indented output.
Format and pretty-print XML documents with proper indentation.
Format and validate YAML online — configurable indent, key sorting, and clear parse errors.
Format and pretty-print GraphQL queries, mutations, subscriptions and schema definitions.
Format and beautify SCSS stylesheets with proper indentation — powered by Prettier.
Format and beautify Less stylesheets with proper indentation — powered by Prettier.
Format and beautify JSX (React) code online — clean, readable component output.
Format and beautify TSX (TypeScript React) code online — clean, typed component output.
Parse, preview and convert CSV data — auto-detects delimiter, table view, and export to JSON.
Obfuscate and protect JavaScript code — Low, Medium and High presets with control flow flattening, string encoding and more
Minify and compress JavaScript files online — reduce file size instantly.
Minify and compress CSS stylesheets online — shrink file size for production.
Minify and compress HTML markup online — reduce file size for faster page loads.
Minify JSON data by removing whitespace — compact output ready for production.
Minify and compress TypeScript files online — strips types and reduces file size instantly.
Minify and compress JSX (React) files online — reduce bundle size instantly.
Minify and compress TSX (TypeScript React) files online — reduce bundle size instantly.
Minify and compress SCSS stylesheets — source-level compression for production.
Minify and compress Less stylesheets — source-level compression for production.
Minify and compress SVG files
Compile SCSS / Sass to plain CSS instantly in the browser
Compile Less stylesheets to plain CSS instantly in the browser
Format and beautify Java code online — Google Java Style, configurable indent. Powered by clang-format WASM.
Format Python code online — Black-compatible output, configurable indent and line length. Powered by Ruff WASM.
Format and validate TOML configuration files with interactive tree view. Powered by smol-toml.
Format and beautify C# source code online. Uses clang-format with Microsoft style for clean, consistent .NET code.
Format and beautify Go (Golang) source code in your browser. Produces clean, idiomatic Go with correct indentation and spacing.
Format and beautify PHP source code online. Supports pure PHP files and mixed HTML + PHP templates with configurable indent size.
This collection covers every common formatting, minification, compilation, and obfuscation task a developer encounters. All 33 tools run 100% client-side — no server round-trips, no file uploads, no account required. Paste your code, click a button, and get clean output instantly.
QAre my code and data sent to a server?
No. Every tool in this category runs entirely inside your browser using WebAssembly or pure JavaScript libraries. Nothing you paste is ever transmitted to any server.
QWhich formatter should I use for React / Next.js code?
Use the JSX Formatter for .jsx files and the TSX Formatter for .tsx files. Both are powered by Prettier and support the full React JSX syntax including fragments, hooks, and generics.
QHow does the Java Formatter work?
The Java formatter uses clang-format compiled to WebAssembly with Google Java Style. It runs entirely in your browser — no Java runtime, no server, no install needed.
QHow does the Python Formatter work?
The Python formatter uses Ruff compiled to WebAssembly. Ruff produces Black-compatible output and is the fastest Python formatter available. It runs 100% in your browser.
QHow does the C# Formatter work?
The C# formatter uses clang-format compiled to WebAssembly with the Microsoft C# style preset. It runs entirely in your browser — no Visual Studio, .NET SDK, or any server required.
QHow does the Go Formatter work?
The Go formatter applies idiomatic gofmt-style formatting in the browser, correctly handling short variable declarations (:=), goroutines, channel operators, and struct literals.
QDoes the PHP Formatter support mixed HTML and PHP files?
Yes. The PHP formatter handles both pure PHP files and mixed HTML + PHP templates. It uses smart token-stashing to preserve PHP blocks while reformatting the surrounding HTML.
QHow does the Bash / Shell Formatter work?
The Bash formatter uses prettier-plugin-sh, the same engine behind shfmt’s Prettier integration. It works with bash, sh, and POSIX shell dialects.
QWhat is the TOML Formatter used for?
TOML (Tom's Obvious Minimal Language) is used for Rust Cargo.toml, Python pyproject.toml, Hugo and other config files. The formatter validates and re-serialises your TOML with a tree view and D3 graph for exploring config structure.
QWhat is the difference between a formatter and a minifier?
A formatter (beautifier) adds indentation, line breaks and consistent spacing to make code readable. A minifier does the opposite — it removes all unnecessary whitespace and shortens identifiers to produce the smallest possible output for production.
QCan I compile SCSS or Less without installing Node.js?
Yes. The SCSS Compiler uses sass.js (compiled to WebAssembly) and the Less Compiler uses less.js — both run entirely in the browser with no local toolchain required.
QHow does the JavaScript Obfuscator work?
It uses the javascript-obfuscator library compiled for the browser. The Low preset renames identifiers and encodes strings. Medium adds control flow flattening and Base64 encoding. High adds dead code injection and RC4 string encoding for maximum protection.
QDoes the JSON formatter support very large files?
The Monaco Editor handles files up to a few megabytes comfortably in-browser. For very large JSON files (10 MB+) you may notice slower rendering, but the tree view includes virtual-scroll to keep it usable.