Encryption Tools / Base91

Online Base91 Decoder

Ready Browser only Local tool
Paste or type Base91
Mode Decode
Input text
0 chars
Output result
Paste Base91 text into the input box to begin.

Free online Base91 decoder

This decoder converts valid Base91 characters back into the original UTF-8 text. Input validation helps identify malformed encoded data before a result is displayed.

Paste Base91 data and select Convert to decode it locally in your browser. Need to create encoded data instead? Open the matching Base91 encoder.

How to use
1. Paste Base91 data.
2. Select Convert.
3. Copy the decoded text.