JSONZero On this device · No uploads · No limits

Compare

Put two JSON documents side by side and mark what was added, removed or changed.

Text stays in this browser. Nothing is uploaded.

About, how to use, and questions

What you can do

  • Added, removed and changed lines are marked
  • Swap the two sides at any time
  • Show only the differences

How to use it

  1. Open a JSON file, or paste text into the editor. Nothing leaves this device.
  2. Format, validate, or work in the tree. The source and the tree follow each other.
  3. Copy or download the result, or send it on to another tool. The same file stays open.

Questions

Is my JSON uploaded anywhere?

JSONZero reads, formats and converts the text in your browser. Drafts stay in local storage on this device.

Is there a size limit?

There is no account and no quota. Very large files are limited only by the memory of this browser.

What happens to very large integers?

Integers past 2^53 - 1 are kept exactly as written and marked in the interface, instead of being silently rounded.