Text input limit: 2 MB.
Output
Encode or decode Base64 text
Encode Unicode text to Base64 or decode Base64 back to UTF-8 text in your browser.
How to use Base64 encode and decode
- 01Paste Unicode text or Base64 data.
- 02Choose encode or decode.
- 03Copy or download the result.
Frequently asked questions
Is my data uploaded?
No. The available inspection and transformation operations run in your browser.
What are the limits?
Text input is limited to 2 MB. Decoding expects Base64 that represents valid UTF-8 text, not arbitrary binary files.
Do I need to install anything?
No. Use a modern browser with nothing to install or sign up for.