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Case Converter
Convert text to uppercase, lowercase, Title Case, or Sentence case instantly.
Developer Tools
Quick helpers for developer-facing text transformation and URL formatting.
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URL Slug Generator
Generate clean URL-friendly slugs from titles or phrases.
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JSON Formatter & Validator
Format, validate, minify, copy, and download JSON locally.
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JavaScript Regex Tester
Test JavaScript regular expressions safely in a time-limited worker.
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Base64 Encoder & Decoder
Encode Unicode text to Base64 or decode Base64 back to UTF-8 text in your browser.
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URL Encoder & Decoder
Encode Unicode text for a URL component or decode percent-encoded text locally.
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Colour Contrast Checker
Check two colours against WCAG 2.2 AA and AAA contrast thresholds.