Apps · Developer tools

Devkit — Free Developer Tools

Format JSON, HTML and SQL. Decode Base64, compare text, read OpenAPI specs and more — locally in your browser.

Open Devkit — Free Developer Tools

17 free developer tools in one fast workspace: JSON validator and formatter, HTML/CSS/JavaScript and SQL formatters, Base64 and URL converters, JSON/YAML and CSV converters, JWT decoder, OpenAPI and Swagger viewer, text diff, regex tester, Unix timestamps, SHA hashes, UUIDs and text case. No sign-up or input uploads. Includes live results, syntax highlighting, dark and light themes, favorites and keyboard search.

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