The fastest way to identify anything!
Last updated Jul 1, 2026
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README
lemmeknow
โก ๐ฆ ๐
Just ask "lemmeknow"!
The fastest way to identify anything
Built with โค๏ธ by
swanandx and
contributors
lemmeknow can be used for identifying mysterious text or to analyze hard-coded strings from captured network packets, malwares, or just about anything.
Try it online
here
Watch the video on
YouTube
๐งฐ Usage
lemmeknow [OPTIONS] <TEXT/FILENAME>
JSON Output
If you want output in JSON format, then pass-j / --json flag.
e.g.
lemmeknow UC11L3JDgDQMyH8iolKkVZ4w --json
Run lemmeknow --help for all options!
๐ญ Installation
Download executable ๐
You can directly download executable and run it. No need for any installation. > Check releases here.Using cargo ๐ฆ
cargo install lemmeknow
Using Nix โ๏ธ
nix-env -iA nixpkgs.lemmeknow
Build it from source ๐ฏ
Clone repositorygit clone https://github.com/swanandx/lemmeknow && cd lemmeknow
then build and run
cargo run -- <TEXT/FILENAME> [OPTIONS]
OR
cargo build --release
cd target/release/
./lemmeknow <TEXT/FILENAME> [OPTIONS]
๐ API
Want to use this as a crate in your project? or make a web api for it? No worries! Just add a entry in yourCargo.toml
[dependencies]
lemmeknow = { version = "0.7", default-features = false }
OR
[dependencies]
lemmeknow = { git = "https://github.com/swanandx/lemmeknow", default-features = false }
Refer to documentation for more info.lemmeknow supports webassembly, that is, it can be compiled for
wasm32-unknown-unknown target!
e.g. lemmeknow-frontend
โ๏ธ Benchmarks
lemmeknow is around 33x faster than pywhat for a file of 8.7MB, and it is 3x faster for a single string! | A file of 8.7MB | A single string | | --- | --- | | Summary:lemmeknow.exe floss.exe ran 33.13 ยฑ 9.74 times faster than pywhat floss.exe | Summary: lemmeknow.exe 3FZ..Zc5 ran 3.29 ยฑ 0.77 times faster than pywhat 3FZ..Zc5 |
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Thanks to SkeletalDemise for the benchmarks and the whisker plots โจ
๐ง Contributing
You can contribute by adding new regex, improving current regex, improving code performance or fixing minor bugs! Just open a issue or submit a PR.๐ Acknowledgement
This project is inspired by PyWhat! Thanks to developer of it for the awesome idea <3 .๐ More in this category