Text Version Comparison — See What Changed at a Glance
After editing a document multiple times, it gets hard to pin down exactly what changed between the old and new version. This tool compares two texts word by word, underlining added words in green and striking through removed words in red, then calculates the overall change ratio. It's a quick way to check the difference between two versions even without Word's or Google Docs' built-in change tracking.
Features:
- Word-level added/removed comparison
- Color-coded diff preview
- Change ratio (%) relative to the whole text
Use cases:
- Comparing contract or terms-of-service edits before and after
- Quickly checking changes in a collaborative document
- Reviewing before/after edits on a blog post or article
- Comparing a translation draft against the final version
Very long text (roughly over 2,000 words) can't be processed due to the computation involved, so split it into paragraphs and compare separately. All comparison happens in your browser — nothing you enter is sent to a server.
FAQ
It compares by word, splitting on whitespace. Even if word order shifts or only part of the text is edited, it accurately finds which words were added or removed.
Because the diff algorithm needs an exact comparison, computation grows quickly with word count. Each text can handle up to about 2,000 words; beyond that, a notice is shown.
It's the number of added plus removed words divided by the average word count of the old and new text, shown as a percentage.