Compare original and changed text or JSON without sharing either version.

Compare Text and JSON Online

Choose line, word or character precision for text. JSON can ignore object key order and formatting while preserving array order.

How to use this tool

  1. Paste or load the original and modified text locally.
  2. Choose text precision or JSON comparison rules, then compare in this browser.
  3. Review split or unified differences, navigate changes, and copy or download the summary.

Frequently asked questions

Does JSON comparison ignore array order?

No. Object key order and formatting can be ignored, but array order remains meaningful.

How much text can I compare?

Each local input is limited to 2 MB. Very large changed blocks use a bounded representation to keep the browser responsive.