Private developer utility

JSON Formatter

Validate, format, and minify JSON locally in your browser. Your data never leaves this device.

  • No server uploads
  • Local browser processing
  • Reusable for files and utilities

Drop files here

Drag and drop a file, or choose one from your device. Files stay in this browser session.

Preview

Input preview

No file selected

Selected files, generated text, images, PDFs, or video frames will appear here.

Related tools

These recommendations come from the live tool registry and link to tools that pair naturally with this workflow.

Utility tools Base64 Encoder / Decoder Encode text, decode Base64, and convert files to Base64 locally. Utility tools JWT Decoder Decode JWT headers, payloads, and timestamp claims locally in your browser. Utility tools Regex Tester Test regular expressions locally with live highlighting, match lists, and capture groups.