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Converters
Number bases, cron schedules, color formats, contrast and QR codes.
Number Base Converter
Convert integers between binary, octal, decimal and hex.
Cron Expression Explainer
Explain a cron expression in plain English and preview next runs.
Color Contrast Checker
Check a color pair against WCAG AA/AAA contrast levels.
Color Converter
Convert any color between HEX, RGB and HSL formats.
QR Code Generator
Turn any text or URL into a downloadable QR code — handy for device and deep-link testing.