# JustTags JustTags in a macOS app for working with BER-TLV EMV tags. ## Features

Decode the tags from base64 or hex strings into a comprehensible list.

Filter the decoded tags by tag, name, or description.

Fully decode the tag value for specific tags (`9F33`, `95` etc).

View additional tag info (source, format, kernel).

Select and copy tags as hex string.

Diff 2 tag lists against each other.

Rename window tabs.

## How to use Clone the project ```bash git clone https://github.com/kaphacius/just-tags ``` Go to the project directory ```bash cd just-tags ``` Open with Xcode ```bash xed . ``` Build and run with `Command + R` ### Command-line support If you want to open the application and pass the data from command-line, the following options are available: - Custom URL schemes. Run `open justtags://main/nzMDKAjI` OR `open justtags://main/9F33032808C8` from command-line. - Piping the output into a custom function. Set it like this: 1. Add the following to your `~/.zshrc` or `~/.bashrc`: ```bash justtags() { read tags open justtags://main/$tags } ``` 2. Run `source ~/.zshrc` or `source ~/.bashrc`. 3. Use the new function `echo "9F33032808C8" | justtags` OR `echo "nzMDKAjI" | justtags`. ## Contributing Contributions are always welcome! Please open an [issue](https://github.com/kaphacius/just-tags/issues/new?labels=bug&title=A+minor+bug) if you spot a bug, or an [enhancement](https://github.com/kaphacius/just-tags/issues/new?labels=enhancement&title=A+great+idea) if you have an idea for a great feature. ## License [GNU GPLv3](https://choosealicense.com/licenses/gpl-3.0/) ## Alternative Tools Eftlab's [BP-Tools](https://www.eftlab.com/bp-tools/) Emvlab's [tlvtool](http://www.emvlab.org/tlvutils/) Binaryfoo's [emv-bertlv](https://github.com/binaryfoo/emv-bertlv)