Coming Soon · Chrome Web Store

DevJSON

A beautiful, 100% local JSON workspace — tree, search, diff, JWT decode and JSONPath. Your data never leaves the browser.

JSON ViewerTree & SearchDiffJWT DecodeJSONPathNo Tracking
What it does

JSON, the way it should be

🌳

Interactive tree view

Expand, collapse and navigate deeply nested JSON in a clean, readable tree.

🔍

Search & collapse

Find any key or value instantly and fold away everything you don't need.

🔀

JSON diff

Compare two documents side by side and see exactly what changed.

🔐

JWT decode (local)

Decode and inspect JSON Web Tokens entirely on your machine — nothing sent anywhere.

🧭

JSONPath queries

Pull out exactly the data you want with powerful JSONPath expressions.

🔒

No network, no tracking

Unlike adware-laden viewers, DevJSON never phones home. Your data stays yours.

Coming soon to Chrome.

DevJSON is launching soon on the Chrome Web Store. Get an email the moment it goes live.

Get notified at launch