All processing runs in your browser — no files or inputs are uploaded to a server.
Related tools
JSON Formatter
DeveloperFormat and validate JSON. Indented or minified output, with clear error messages.
Base64 Encoder / Decoder
DeveloperEncode text to Base64 or decode Base64 back to text. UTF-8 safe.
URL Encoder / Decoder
DeveloperPercent-encode or decode URL components.
JWT Decoder
DeveloperDecode JWT header and payload locally. Signature is not verified — paste tokens at your discretion.