Are you looking for a clever and discreet way to hide messages within your writing? You’re in luck! Unch allows you to conceal text within another text by using invisible Unicode characters. It’s like a digital version of invisible ink!
In practice, Unch uses Unicode Variation Selector characters, ranging from \nE0100 to \nE01EF, to mask your secret message. Your plain text serves as a cover, and voilà! Only those who know the trick can reveal the hidden content.
How does it work?
- Your message is first encoded in Base64.
- Then, for each character in the result, a variation selector is added.
- This esoteric text is then inserted into your innocent-looking message.
And just like that, you have a seemingly ordinary text that holds a well-kept secret! Your recipients won’t suspect a thing.
Using Unch is simple. You can:
- Download a precompiled binary from the GitHub releases page.
- Compile the source code yourself in Go (version 1.22.0 or higher required).
- Use the official Docker image.
Then, just run the unch command with your message and the cover text. For example:
unch "My secret message" "Hey, what's up?"You can also use options to decode a hidden message with -d or --decode, generate random fake text with -l or --lorem, and even remove the final line break with -n.
Here are a few usage examples:
unch "Meet at 10 PM" "Shall we watch a movie tonight?"
unch -l "I am a secret agent"
unch -d "Shall we watch a movie tonight?"With Unch, you can share information with your friends or colleagues for fun (but don’t get too serious—remember, it’s not encrypted).
