inØsight
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Sign
When enabled, prepends an invisible zero-width signature to the output. This allows inØsight to automatically detect hidden messages across web pages, identify the base and cipher, and show the on-screen decode button.
How ZWUS Works
- Takes each character's Unicode code point. ZWUS-7 ranks printable ASCII first so common letters and spaces use short values.
- Converts the value to the chosen base (3, 6, or 7).
- Maps each resulting digit to its assigned zero-width character from the alphabet.
- Joins digits together; separates characters with the base's designated separator (also zero-width).
The result is a string of invisible Unicode that carries the full original text. Decoding reverses the mapping: splits on the separator, looks up each zero-width character to recover the digit, parses the base-N number back to a code point, and reconstructs the string.
For details regarding picking the optimal standard/base, see docs/zwus.md.
For cipher details, see docs/cipher.md.
Use ZWUS in Your Own Projects
The encoder/decoder is available as a standalone package for multiple languages:
- JavaScript/TypeScript: zwus on npm
- Rust: zwus on crates.io
Note
Encoding works with all Unicode characters in existence (
U+0000toU+10FFFF), including every language script, emoji, and symbol.