Need to quickly inspect a JSON file or save a snippet for later? Sonnet is built for developers who want simplicity without the clutter. No complex configurations, no crashes—just open your file and read.
Why use Sonnet?
📂 Drafts Workspace Don't lose your work. Sonnet allows you to create and save Drafts locally. Keep your snippets organized and accessible even after you close the app.
✨ Clean Tree View Visualize nested JSON structures with a collapsible tree interface. Navigate deep objects effortlessly without getting lost in brackets.
📝 Raw Editor Need to make a quick change? Switch to the Code view to edit your JSON directly.
🔒 100% Offline & Private Sonnet processes everything locally on your device. Your data never touches a server.
Key Features:
Open Files: Import JSON files from your device storage.
Tree Visualization: Expand/collapse nodes for easy reading.
Local Drafts: Save your work-in-progress files.
Dark Mode: Native support for comfortable late-night coding.
Download Sonnet for a distraction-free JSON experience.
Updated on
Dec 30, 2025
Tools
Data safety
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.