Text and data tools
Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 back to Unicode-safe text locally in your browser.
Input
Output
Bytes
Variant
Input
Output
Diagnostics
Process input to inspect size, padding, and decoded MIME hints.
Data URL metadata will appear here when detected.
Encode, decode, and inspect Base64 text locally
Use this Base64 encoder and decoder for standard Base64, URL-safe Base64, padding cleanup, line wrapping, and data URL inspection. It is handy for API payloads, configuration values, tokens, images, and quick debugging.
The conversion runs in your browser, so pasted text and files do not need to leave your device for ordinary encode and decode tasks.