Free Developer Tools

Free utilities for JSON, CSS, HTML, JavaScript and SQL. Format, minify, validate and check your code, right in your browser.

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JSON Tools

Validate, format, minify, view, compare and explore JSON, all in your browser.

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Format and minify HTML, and check its structure, accessibility and on-page SEO.

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Format with Prettier, minify with Terser and check JavaScript syntax.

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Format, minify and validate CSS with Prettier, CSSO and CSSTree.

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Format SQL for any major database and check MySQL or PostgreSQL syntax.

Process and format your code instantly with our optimized tools. No waiting, no delays - just immediate results.

Your code is processed locally in your browser when possible. No data is stored or transmitted unnecessarily.

Built by developers for developers. Our tools follow industry standards and best practices for code formatting.

These are the most frequently used developer tools on our platform.