When a visual line diff helps
Side-by-side diffs make edits easier to review than reading two full documents. Use them for drafts, configs, changelogs, or any line-oriented text where you need to see exactly what changed.
Visual Text Diff
Compare two text versions with a clear visual diff: additions, removals, and unchanged lines update as you type.
Original
Changed
How it works
- 1
Paste the original content on the left (or first panel).
- 2
Paste the changed content on the right (or second panel).
- 3
Review the highlighted differences; copy a unified view if offered.
Why use this tool
- Runs entirely in your browser — nothing is uploaded to a server.
- 100% free, no sign-up, no limits.
- Works in any modern browser — no app install, no extension, no account.
How to use Visual Text Diff
Use both panels in Visual Text Diff to compare two versions. Differences update as you edit either side — nothing needs to be uploaded.
Tips for better results
Keep formatting consistent when comparing code. For huge files, compare a focused slice first.
Privacy and offline-friendly processing
Whenever possible, Visual Text Diff processes your data locally with JavaScript in this page. That means drafts, secrets, and unfinished work stay on your device by default. Prefer this workflow when you do not want to upload sensitive text, tokens, passwords, or files to a third-party service.
Frequently asked questions
Is this the same as Text Compare?
It serves a similar purpose with a stronger visual layout for additions and removals. Use whichever view you prefer for the review at hand.
Does comparison run on a server?
No. Diffing happens entirely in your browser; your text is never uploaded.
Is my data uploaded when I use this tool?
For most FlyUtils tools, no. Processing happens in your browser with JavaScript. If a tool ever needs a server, that will be stated clearly on the page.
Is Visual Text Diff free to use?
Yes. Visual Text Diff is free, with no sign-up and no artificial usage caps for normal personal and work use.
Does Visual Text Diff work on mobile?
Yes. The page is mobile-first, so you can paste input, tweak options, and copy results from a phone or tablet.