Base64 Encode & Decode Online
Convert plain text to Base64 and back. Handles accents, Thai, Burmese, emoji and any other Unicode text.
Free · No sign-up · Private — runs in your browser
Result
How to use the Base64 Encode / Decode
- Choose Encode or Decode.
- Paste your text.
- Copy the result.
Why use this base64 encode / decode?
- Full UTF-8 support
- Clear error on invalid input
- Instant, local processing
Frequently asked questions
What is Base64?
Base64 is a way to represent binary or text data using only letters, digits, + and /, so it can travel safely through systems that expect plain text.
Is Base64 encryption?
No. It is an encoding, not encryption — anyone can decode it. Never use it to hide passwords.
Why does decoding fail?
The input probably has missing characters, extra spaces or is not Base64. Check for a truncated copy.