Base64 Encoder/Decoder

Encode or decode Base64 strings

URL-safe Base64Data URI

Processed locally, using a browser Worker when available · 20 MB file limit

InputChoose or drop any file to encode

Output

About Base64 Encoder/Decoder

Encode or decode Base64 strings.

No installation is required and input is not permanently stored. Encoding, formatting, image and QR tools run locally in your browser; only network lookups connect to their respective services.