JSON Viewer

What you can do with it

• • Tidy up messy JSON in one click, or squash it onto a single line
• • Sort the keys into alphabetical order
• • Drag a .json, .ndjson, or .jsonl file straight onto the page
• • Load JSON from a web address, handy for sharing a live API response
• • Open and close nested sections in a tree, with each value labeled by its type
• • Click any value to copy its path, so you can point someone else at the exact spot
• • Search names and values to jump straight to what you need

Example: inspecting an API response

Paste something like this and you get a tree you can open and close, instead of a wall of text.

{
  "user": {
    "id": 482,
    "name": "Ada Lovelace",
    "roles": ["admin", "editor"],
    "meta": { "lastLogin": "2026-07-01T09:12:00Z", "verified": true }
  }
}

Click meta.lastLogin in the tree and its full path is copied for you — no counting brackets.

Working with bigger or line-delimited files?

This page suits everyday files. If yours is hundreds of megabytes, the Large JSON Viewer keeps the tab from locking up. If it has one JSON object per line — logs, exports, LLM training data — use the NDJSON Viewer. And if your JSON is broken, start with JSON Repair.

FAQ