The Ultimate Data Editor
For Every Format
Offline desktop app. Import HTML, XML, Excel, CSV, Markdown, or JSON. Edit seamlessly on an intuitive table or source view.
Unmatched Editorial Superpowers
Every tool you need to manipulate structured data effortlessly.
Multi-Format Import & Export
Work seamlessly with HTML, XML, Excel, CSV, Markdown, or JSON. Convert formats instantly.
Dual Synchronized Editor
Edit data intuitively on the rich table view or directly via the raw JSON/source editor with live sync.
Advanced Filtering
Filter rows by specific values across designated columns or globally. Select precisely what you need to export.
Heavy File Performance
Engineered from the ground up to load and manipulate massive datasets without lagging or crashing.
Built-in File Explorer
Manage your entire project directory. Effortlessly load folders and switch between data files in seconds.
Native Live Preview
Instantly preview your data in all supported formats natively before exporting to the final file.
Data Management Done Right
JSON Con is built for developers, data analysts, and content managers who need precision control offline. Stop struggling with browser-based tools that limit your file sizes and put your data privacy at risk.
- 100% Offline Privacy - Your data never leaves your machine.
- No File Size Limits - Work with Gigabytes of data smoothly.
- Instant Live Previews - See what your export looks like instantly.