Built by Developers, for Developers
JSON-parser.net is a collection of professional-grade JSON tools designed with one principle: your data stays on your device. Always.
Our Mission
Every day, developers paste sensitive JSON data—API keys, customer records, financial transactions—into online tools without thinking twice. Most of these tools send your data to remote servers for processing.
We built JSON-parser.net to be different. All processing happens in your browser using Web Workers. Your data never leaves your device. No server uploads, no data collection, no compromises.
Meet the Founder
Adam Tse
Founder & Lead Developer
Full-stack engineer with 10+ years of experience building developer tools and APIs. Previously worked on data infrastructure at scale, processing billions of JSON documents daily.
After years of using various JSON tools and always worrying about data privacy, I decided to build the tool I wished existed: fast, feature-rich, and completely private. JSON-parser.net is the result of that vision—a professional-grade toolkit that respects your data.
Why We're Different
100% Client-Side Processing
Your JSON never touches our servers. All parsing, formatting, validation, and conversion happens in your browser using Web Workers. Works offline too.
Performance First
Handles multi-megabyte JSON files without freezing your browser. Web Workers keep the UI responsive even during heavy processing.
Professional-Grade Tools
JSON Schema validation (Draft 2020-12), semantic diff comparisons, JSONPath queries, YAML conversion, and more. The tools professionals actually need.
Educational Content
Not just tools—we provide comprehensive tutorials, guides, and best practices written by developers who use JSON daily in production systems.
By the Numbers
Built With Modern Technology
JSON-parser.net is built with a modern, performance-focused tech stack designed for reliability and speed:
Have Feedback or Suggestions?
We're constantly improving JSON-parser.net based on user feedback. Tell us what features you'd like to see or what we can do better.