Developer tools: JSON formatter · Base64 encoder / decoder · URL encoder / decoder.
Format, minify and validate JSON.
Convert text to Base64 and back, including Unicode.
Encode and decode special URL characters.
Calculate SHA-256, SHA-384 and SHA-512 locally.
Generate random UUID v4 values in batches.
Choose length and characters. Secure random values.
Convert Unix seconds, milliseconds and dates.
Convert HEX, RGB and HSL with a live swatch.
Turn text or a URL into a downloadable QR code.
Generate MD5 or compare your own candidate texts.