A lightweight and fast ASN.1 data viewer, built in C# for Windows. Parses ASN.1 data or files(*.pfx, .p7b, *.pem, *.cer, *.der, etc) and displays it in a tree view.
- 🧬 Parses DER-encoded, PEM-encoded, HEX-encoded ASN.1
- 🌳 Tree-view UI
- 🪟 Built with WinForms
- 📦 Simple executable, no install needed
- Clone repo
- Open in Visual Studio
- Build and run
- Open sample(Test) files
- There are 3 ways to open ASN.1 data(file)
- By menue (File->Open)
- Drag the file into the Form
- Input PEM text or HEX text in the "Input Text" tab
- Inspect X.509 certificates
- Analyze PKCS structures
- Debug ASN.1-based protocols
MIT