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

  git clone https://github.com/kaphacius/just-tags

Go to the project directory

  cd just-tags

Open with Xcode

  xed .

Build and run with Command + R

Roadmap

• Specific kernel selection.
• Adding tag information for specific kernels at runtime.
• Improvements to tag value decoding: more tags and more formats.
• Display the number of decoded and selected tags.
• Save the session data to be available when the app is opened again.

Contributing

Contributions are always welcome!

Please open an issue if you spot a bug, or an enhancement if you have an idea for a great feature.

License

GNU GPLv3

Alternative Tools

Eftlab's BP-Tools

Emvlab's tlvtool

Binaryfoo's emv-bertlv