Elysia Tools
Navigation
Format Conversion
Encode and decode text to/from Base91 format (ascii+basE91 algorithm)
Execution
Fill in the form, run the tool, and review the result in one place.
Samples
Related
Ready for a run
Tool usage guide
The Base91 Converter is a lightweight utility designed to encode and decode text using the basE91 algorithm, providing a more efficient way to represent binary data as ASCII characters compared to standard Base64.
Background
A developer needs to embed a small binary configuration blob into a text-based JSON file.
Problem
Standard Base64 encoding creates strings that are too long for the specific database field limit.
How to use
Paste the configuration string into the input, select 'Encode to Base91', and copy the result.
Outcome
The resulting Base91 string is significantly shorter, fitting perfectly within the database character constraints.
Background
An admin received a Base91-encoded log snippet from a legacy system that uses this format for compact logging.
Problem
The raw Base91 text is unreadable and needs to be converted back to plain text for analysis.
How to use
Paste the encoded log string into the input, select 'Decode from Base91', and view the original content.
Outcome
The tool instantly restores the original log text, allowing for quick troubleshooting.
Base91 is an advanced binary-to-ASCII encoding scheme that uses 91 printable characters to represent data, offering higher efficiency than Base64.
Yes, all processing happens locally in your browser, ensuring your data is not sent to any external servers.
This tool is optimized for text-based strings. For extremely large binary files, consider using specialized command-line utilities.
Yes, the algorithm handles standard text and special characters by converting them into the Base91 character set.
Base91 is more space-efficient, resulting in shorter encoded strings for the same amount of input data.