Color Contrast Checker
The quick brown fox jumps over the lazy dog
Contrast ratio17.74:1
AAPass
AAAPass
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Built for quick debugging
Developer tools avoid unnecessary setup and keep common snippets, tokens, and test data in your browser where possible.
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Quick workflow
- Paste the value, snippet, command, or sample data.
- Run the parser, generator, tester, or converter.
- Copy the result and continue with the suggested next tool.
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Useful tip
Chain small tools together: decode, inspect, format, compare, and generate types from the same data.
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Cron Parser
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Base Converter
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UUID Generator
Generate UUID unique identifiers
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Remove Duplicate Lines
Remove duplicate lines from text with case, trim, and empty-line options.
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Redirect Chain CSV Auditor
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