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12 utilities for developers and engineers
Format JSON, generate hashes, test regex, encode Base64 — all in your browser with no server.
Format, minify, and validate JSON with syntax highlighting.
Open toolEncode and decode Base64 strings and files.
Open toolEncode and decode URL components.
Open toolGenerate UUID v4 identifiers in bulk.
Open toolGenerate MD5, SHA-1, SHA-256, and SHA-512 hashes.
Open toolConvert between HEX, RGB, HSL, and HSB color formats.
Open toolTest regular expressions with live matching and group capture.
Open toolConvert between binary, octal, decimal, and hexadecimal.
Open toolConvert Markdown to HTML and back.
Open toolConvert between CSV and JSON formats.
Open toolGenerate strong random passwords with customizable rules.
Open toolCreate QR codes for URLs, text, WiFi, and more.
Open toolThe hash generator creates one-way hashes using WebCrypto API. For password hashing in production, use bcrypt or Argon2 instead of SHA/MD5.
Yes, it processes JSON in-browser. Performance depends on your device, but most files up to 10MB work well.
Yes, they use the browser's crypto.getRandomValues() for cryptographically secure random generation.