Base64 Encode/Decode

Encode and decode text to/from Base64 format instantly. Supports URL-safe Base64 and full UTF-8. Everything runs in your browser — no data is sent to any server.

URL-safe:

Input

0 characters1 lines

Output

Instant Processing

Encode or decode Base64 in milliseconds. No server roundtrips needed.

100% Private

Your data never leaves your browser. No tracking, no cookies, no server-side processing.

URL-Safe Mode

Toggle URL-safe Base64 encoding that replaces +/= with URL-friendly characters.