Encoding & Security

Encode and decode data, inspect tokens, hash text or files and generate random values with your browser's cryptographically secure generator. Nothing you enter is stored or sent.

• Base64 Encoder / DecoderEncode and decode Base64 with full UTF-8 support.
• URL Encoder / DecoderPercent-encode and decode URLs and query values.
• HTML Entities Encoder / DecoderEscape and unescape HTML special characters.
• JWT DecoderInspect a JSON Web Token's header, payload and expiry.
• UUID GeneratorGenerate random v4 (and time-ordered v7) UUIDs.
• Hash GeneratorSHA-256, SHA-384 and SHA-512 hashes of text or files.
• Random String GeneratorCreate secure random strings from chosen characters.
• Password GeneratorGenerate strong passwords with your browser's secure RNG.
• Regex TesterTest JavaScript regular expressions with live highlighting.