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Text compare — spot every difference

Two drafts of the same document, an email before and after edits, two versions of a paragraph someone sent you — paste both in and every difference is highlighted immediately, without needing to read line by line yourself to spot what changed. Same underlying comparison as our diff checker, framed here for plain-English documents rather than code.

  • Nothing you type leaves this page
  • Works offline once loaded
  • Free forever, no signup

How to use this tool

  1. Paste the original on the left

    And the edited or newer version on the right.

  2. Read the highlighted changes

    Green for additions, red for removals, both shown together for anything edited in place.

  3. Ignore formatting noise if needed

    Toggle "ignore case" or "ignore whitespace" when only the actual wording matters.

Questions people ask

What is the fastest way to compare two versions of the same document?

Paste the earlier version on the left and the newer one on the right — every changed line highlights immediately, which is far faster and more reliable than reading both versions side by side yourself and trying to spot the difference by eye.

Can I compare two paragraphs that only differ by a few words?

Yes — this tool shows word-level detail inside a changed line, not just "this whole line is different", so a single reworded sentence highlights only the specific words that actually changed.

Is it safe to compare a contract or confidential email here?

Yes — the comparison runs entirely in your browser's JavaScript. There is no server endpoint on this page that accepts text, so a private document never leaves your device, and the page keeps working even offline once it has loaded.

Can I compare two code snippets here instead of prose?

You can, and it works fine for short snippets — but for anything longer, or where indentation matters a lot, our diff checker page is framed specifically for that use case with the same underlying comparison engine.

What does it mean when a line shows both red and green together?

That is this tool's way of showing an edited line — rather than treating it as one deletion and one unrelated addition, a removed line immediately followed by an added line is paired and shown together so you can read the before and after in place.

Related tools

Bookmark this page — the tool keeps working offline, and your settings stay in this browser. Built by Dynamb Technologies, who make software for a living.