Code Formatting and Beautifying Tools
Turn minified or difficult-to-scan source into consistent, readable code before debugging, review or documentation.
Choose a tool
18 browser-based tools are available in this collection. Open a tool to see its input, output and current size limit.
JavaScript Beautifier
JavaScript Beautifier is a browser-based tool for beautifying JavaScript code. Paste your input, review the…
JSON Formatter
JSON Formatter is a browser-based tool for formatting and beautifying JSON. Paste your input, review the…
XML Formatter
XML Formatter is a browser-based tool for formatting and beautifying XML. Paste your input, review the…
HTML Formatter
HTML Formatter is a browser-based tool for formatting and beautifying HTML. Paste your input, review the…
SQL Formatter
SQL Formatter is a browser-based tool for formatting and beautifying SQL. Paste your input, review the…
TypeScript Formatter
TypeScript Formatter is a browser-based tool for formatting and beautifying TypeScript. Paste your input…
CSS Formatter
CSS Formatter is a browser-based tool for formatting and beautifying CSS. Paste your input, review the…
Markdown Formatter
Markdown Formatter is a browser-based tool for formatting and beautifying Markdown. Paste your input, review…
GraphQL Formatter
GraphQL Formatter is a browser-based tool for formatting and beautifying GraphQL. Paste your input, review…
YAML Formatter
YAML Formatter is a browser-based tool for formatting and beautifying YAML. Paste your input, review the…
Python String Formatter
Python String Formatter is a browser-based tool for formatting and beautifying Python. Paste your input…
LaTeX Formatter
LaTeX Formatter is a browser-based tool for formatting and beautifying LaTeX. Paste your input, review the…
Java String Formatter
Java String Formatter is a browser-based tool for formatting and beautifying Java. Paste your input, review…
Lua String Formatter
Lua String Formatter is a browser-based tool for formatting and beautifying Lua. Paste your input, review…
SVG Formatter
SVG Formatter is a browser-based tool for formatting and beautifying SVG. Paste your input, review the…
CURL Formatter
cURL Formatter is a browser-based tool for formatting and beautifying cURL. Paste your input, review the…
Browser-only tools
Privacy-first developer workflows
Supported input is processed in the browser, so source data does not need to be uploaded to a server. Limits vary by tool and browser; the tool page shows the relevant behavior before you start.
How to choose the right tool
Use formatters and beautifiers when code is difficult to read, validators when you need to find syntax problems, and converters when another system expects a different data structure. For production bundles, use a minifier only after reviewing the readable source and testing the result.
Bookmark this collection for repeat debugging, API inspection, configuration review and data-cleanup tasks. Every tool links to adjacent workflows so you can move from validation to formatting or conversion without returning to the home page.