Dev Tools - Free Online JSON, CSV, Code Formatter & Color Picker Tools

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• 100% Free
• Browser-Based
• No Sign-Up

Dev Tools

Free online developer tools for JSON, CSV, XML, code formatting, colors and SEO tags.

Format, validate, minify and convert your code and data directly in your browser — fast, free and easy to use.

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What can you do with these Dev Tools?

Dev Tools gathers all of the developer utilities on this site in one place. Every tool runs directly in your browser, so it works on Windows, Mac, Linux, Android and iPhone with nothing to install.

• Work with JSON: format and validate JSON, beautify messy JSON, convert JSON to XML or XML to JSON.
• Convert data formats: turn JSON into CSV, CSV into JSON, or plain text lists into clean CSV.
• Clean up code: beautify and minify JavaScript, format and minify CSS, or tidy and compress HTML.
• Build for the web: pick and convert colors with the color picker tool, generate SEO meta tags, or convert text links into hyperlinks.

Use the search box above to find a tool by name or task — for example "json", "csv", "minify" or "color". New developer tools are added regularly.

Explore More Tools

Discover more free utilities across the site.

All Dev Tools are free to use and run directly in your web browser — no installation or account required.