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About Free JSON Viewer

The most comprehensive, privacy-focused, and developer-friendly JSON toolkit on the web. Built by developers, for developers.

8+
Tools Available
180+
Countries Served
100%
Privacy Focused
Always Free

Our Mission

We believe that every developer deserves access to high-quality, professional tools without compromising their privacy or paying subscription fees. Free JSON Viewer was created to provide the most comprehensive JSON toolkit while maintaining the highest standards of privacy and user experience.

In a world where data privacy is increasingly important, we've designed our tools to work entirely in your browser - ensuring your sensitive JSON data never leaves your device while still providing enterprise-grade functionality.

Our Values

Privacy First

Your data never leaves your browser. All processing happens locally for maximum privacy and security.

Actually Free

No hidden costs, no premium features, no limits. We believe great developer tools should be accessible to everyone.

Open Source

Transparent development with open source code. Community-driven improvements and contributions welcome.

High Performance

Optimized for speed and efficiency. Handle large JSON files with ease using modern web technologies.

What We Offer

A complete suite of JSON tools designed for modern development workflows.

JSON Formatting & Validation
Schema Validation with AJV
Format Conversion (YAML, CSV, XML)
JSON Comparison & Diff
Data Visualization & Analytics
Keyboard Shortcuts
Dark/Light Mode
Mobile Responsive
PWA Support
Offline Functionality
Share Links
Auto-fix Malformed JSON

Built with Modern Technology

Free JSON Viewer is built using cutting-edge web technologies to ensure the best possible performance, security, and user experience:

  • Next.js 14 - React framework for production-grade applications
  • TypeScript - Type-safe development for reliability
  • Tailwind CSS - Modern, responsive design system
  • AJV - Industry-standard JSON schema validation
  • Web Workers - Non-blocking processing for large files
  • Progressive Web App - App-like experience with offline support

Join Our Community

Help us improve Free JSON Viewer. Contribute code, report bugs, or suggest features.

Questions or Feedback?

We'd love to hear from you. Reach out through GitHub issues or discussions.

Get in Touch