Base64 Encode/Decode Tool
Base64 Encode and Decode Tool
Encode text to Base64 or decode a Base64 string back to readable text. Base64 is used to carry binary data through text based systems such as email attachments, data URLs and API tokens. Conversion is instant and runs in your browser.
Base64 Encode & Decode
How to use it
- Paste your text or Base64 string into the box.
- Press Encode or Decode.
- Copy the result.
Frequently asked questions
Is Base64 encryption?
No. It is only an encoding and anyone can decode it. Never treat Base64 as a way to protect secrets.
Why does decoding fail?
The input may contain characters outside the Base64 alphabet, missing padding, or line breaks copied from a wrapped source.
Does it handle Unicode text?
Text is converted using UTF-8 so international characters round trip correctly where the tool supports it.