Encoding tool
Base64 + Base64URL Converter
Encode or decode UTF-8 text with Base64 and Base64URL in one local tool.
Input chars: 0
Output chars: 0
Everything runs in your browser. No text is uploaded.
Reliable Encoding
Convert UTF-8 text to standard Base64 or URL-safe Base64URL in one click.
URL-safe Variant
Use Base64URL when values must travel in URLs or tokens without reserved characters.
Local Privacy
Encoding and decoding happen locally in your browser memory.