ConvertBox Logo
ConvertBox

Diff Viewer

Compare two pieces of text or code line-by-line, with inline word-level highlights. Perfect for reviewing diffs without leaving the browser.

How to Use

  1. Paste the original text on the left.
  2. Paste the changed text on the right.
  3. Review added/removed lines and inline word changes.
  4. All comparison happens in your browser.

All processing is done in your browser, and files are never sent to a server.

Frequently Asked Questions

No. Comparison runs entirely in your browser using the diff-match-patch library.
Diff Viewer provides a side-by-side view with inline word-level highlighting. The text/diff tool gives a simpler unified diff.
Performance is good up to a few thousand lines. Very long texts may slow rendering.