Base64 Encode/Decode

Encoding/decoding happens entirely in your browser. Nothing you type or upload is ever sent to our servers.

Input

URL-safe alphabet (- _ instead of + /, no padding)

Output

Enter text and click Encode or Decode.

Files up to 20 MB. The whole file is read into memory in your browser — nothing is uploaded.

Base64 output

Choose a file to encode it.