Sonar is a native GTK4 application that provides a beautiful, intuitive interface for capturing and inspecting webhook requests during development.
Built with modern technologies and following GNOME design patterns, Sonar makes webhook debugging simple and efficient.
This is free and open source software.
Features include:
- Instant Public URLs: Generate public URLs via ngrok integration for webhook testing.
- Real-time Capture: Live display of incoming webhook requests as they arrive.
- Detailed Inspection: View headers, body content, query parameters, and metadata.
- Quick Copy: One-click copying of request data, headers, or body content.
- Accordion UI: Focus on one request at a time with automatic expansion behavior.
- Fast & Lightweight: Native GTK4 application with minimal resource usage.
- Modern Design: Clean Libadwaita interface that integrates perfectly with GNOME.
- Secure: Runs sandboxed via Flatpak with minimal required permissions.
Website: github.com/PancakeTAS/lsfg-vk
Support:
Developer: Thiago Fernandes
License: GNU General Public License v3.0

Sonar is written in Python. Learn Python with our recommended free books and free tutorials.
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