Base64 Encoder & Decoder
Encode and decode Base64 correctly for any Unicode input — emoji, accented characters and non-Latin scripts included. Optional URL-safe alphabet for JWTs and query strings.
Input0 chars · 0 lines
Output
Result will appear here.// Features
- ▸UTF-8 safe encode/decode
- ▸URL-safe (base64url) toggle
- ▸Bidirectional — swap input/output with one click
- ▸Handles multi-line input
// How to use
- 01Choose Encode or Decode.
- 02Paste text.
- 03Copy the result.
// FAQ
Your data never leaves your browser. This tool runs 100% locally — no upload, no logging, no analytics on your inputs.