Format Massive JSON Files
Paste your minified JSON to format, validate, and fix errors instantly. Unlike traditional online tools, this formatter runs 100% locally using WebAssembly
Loading Tool...
Paste your minified JSON to format, validate, and fix errors instantly. Unlike traditional online tools, this formatter runs 100% locally using WebAssembly
Paste or type JSON and it will be automatically formatted in real-time. Visual statistics update as you edit.
Identify and fix JSON syntax errors with clear error messages and precise error locations.
Sort object keys, customize indentation, use compact mode, and easily share your formatted JSON.
DevUtils is a professional suite of free, zero-latency utilities that run entirely in your browser using WebAssembly. Unlike traditional tools, it guarantees maximum privacy by ensuring data—such as JWTs, SQL, and JSON—never leaves your device. The toolkit features specialized categories for DevOps (Docker to Compose, Nginx Config), Data Engineering (JSON to Schema, Mass Relational Mock Data), and Web Development (Socket Client, Curl to Code). Installable as a PWA, it works offline without internet and handles massive files bounded only by your RAM.