Both tools format and validate JSON in your browser. The differences are smaller than the marketing would suggest. Here is the honest version.
jsonformatter.org has been the first Google result for "JSON formatter" for years and that is not an accident. It works on day one, has zero learning curve, and ships features PrivBatch does not: a public-share link for pasted JSON, a graph view for nested structures, and a built-in JSONLint mode. The browser-side processing is real - they were doing client-side JSON validation long before "privacy-first" became a positioning angle.
If you need to send a colleague a formatted blob over Slack and you want a one-click public URL, jsonformatter.org is faster than PrivBatch will ever be.
PrivBatch's JSON Formatter has no ads, no public-share feature, no third-party scripts in the page, and works after the first load with the network completely disabled. The "Prove It" toggle counts every network request the page makes while you are formatting JSON - the expected number is 0.
You also get the same dark UI as the other 20 tools on the site, the same keyboard shortcuts, and a license-key path if you want to remove the free-tier batch limit later.
| Feature | jsonformatter.org | PrivBatch |
|---|---|---|
| Brand recognition / SEO | Top Google result, 10+ years of trust | Launched 2026 |
| Public share link | Yes, save and share a JSON URL | No (by design) |
| Graph / tree visualisation | Tree view + graph view | Tree view only |
| Processing location | In-browser | In-browser |
| Free to use | Yes | Yes (Free tier covers all 23 tools) |
| Ads on the page | Yes (asks to disable ad blocker) | 0 |
| Works fully offline | No (loads ads + analytics) | Yes after first load |
| Third-party trackers | Present | 0 |
| Prove-It network counter | No | Built-in toggle |
| Other tools in the same UI | JSON-only family | 21 dev tools, one keyboard shortcut to switch |
PrivBatch Tie Competitor
You need a shareable public URL, you want the graph view, or you are formatting non-sensitive JSON and the ad-supported workflow does not bother you. It is a fine tool and the team behind it has been at this longer than we have.
The JSON contains anything you would not paste into a stranger's website - API keys, customer payloads, internal IDs, staging data. Or you want a single offline tool family that covers JSON, CSV, JWT, base64, and 17 others with the same shortcuts.
Try the privacy-first version. 0 uploads, 0 ads, 0 trackers.
Open JSON Formatter →