Free Online Code and Data Formatters
Paste messy code or data and get clean, readable output. Formatting happens locally in your browser.
10 tools in this section
Format & Beautify JSON Online
Paste minified or messy JSON and format it with proper indentation. Free online JSON formatter with validation.
Format SQL Queries Online
Beautify and indent SQL queries for better readability. Free online SQL formatter supporting MySQL, PostgreSQL, and more.
Format & Beautify XML Online
Paste XML data and format it with proper indentation and syntax highlighting. Free online XML formatter and validator.
Format & Beautify CSS Online
Paste minified or messy CSS and format it with proper indentation. Free online CSS formatter and beautifier.
Format & Beautify Code Online
Format and beautify JavaScript, Python, PHP, Java, and C++ code. Free online code formatter with syntax highlighting.
Format JSON Online Free
Format and beautify JSON online for free with syntax highlighting. Paste raw or minified JSON and get clean indented output, no signup.
Format a MySQL Query Online
Beautify and indent MySQL queries with backtick-aware formatting. Free MySQL formatter for selects, joins, and procedures, no signup.
Format a SQL Server Query Online
Pretty print T-SQL with square-bracket identifier support. Free SQL Server formatter for complex queries and procedures, no signup.
Format an XML Document Online
Beautify and validate XML with chosen indentation. Free XML formatter that flags well-formedness errors by line, no signup.
Format JavaScript Online
Beautify and reindent messy or minified JavaScript with consistent formatting. Free online JavaScript formatter that runs in your browser.
Full Tool Pages
About These Tools
Every tool in this section is free and runs entirely in your browser on ToolBox. There are no uploads, no accounts, and no usage limits, so your files and data stay on your own device. Browse the full tool directory for everything else.