💻 7 Free Developer Tools
Free Online Developer Tools
HTML formatter, regex tester, color converter, and timestamp converter — built for developers, free and open.
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HTML Formatter
Format and beautify messy HTML code with proper indentation.
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Regex Tester
Test and debug regular expressions with live match highlighting.
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Color Converter
Convert colors between HEX, RGB, HSL, and CMYK formats with a live picker.
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Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa.
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JSON ↔ CSV Converter
Convert JSON to CSV and CSV to JSON instantly with live preview.
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JWT Decoder
Decode JSON Web Tokens (JWT) and inspect header, payload, and expiry status.
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Markdown to HTML
Convert Markdown to HTML with live split-screen preview and syntax highlighting.
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