Quikbench
Quikbench
Paste two versions of a document and see exactly what changed — a word-level redline, plus a breakdown of amounts, dates, and obligations that shifted. Nothing you paste here is ever uploaded anywhere.
Paste the original text on the left and the revised version on the right, then compare. Works for contracts, policies, emails, code comments, or any two blocks of text.
Paste the original text into the "Before" box and the revised version into "After," then click Compare. The tool computes a word-level difference locally in your browser — additions are highlighted in green, removals in red strikethrough — so you can see exactly where the wording changed, down to individual words.
Below the redline, a breakdown panel scans the changes and tags anything that looks substantive: amounts that changed (prices, percentages), dates or deadlines that shifted, obligation language ("shall," "must," "required") that was added or removed, and outright negation flips where a clause was reversed. It also shows word counts and roughly what percentage of the text changed, so you can gauge how significant the revision is at a glance.
Contract or policy redlines, terms of service updates, revised email drafts, changed code comments or documentation, or any two versions of writing where you need to know precisely what moved — not just that something did.
Everything happens locally in your browser using plain JavaScript. There's no upload, no account, and no server involved at any point — close the tab and both versions of your text are gone.
No. The comparison and breakdown both run locally in your browser using JavaScript. Nothing you paste is sent to a server, so it's safe to use with confidential contracts or drafts.
No — the breakdown is rule-based, not AI-generated. It looks for patterns like changed amounts, dates, negations, and obligation language directly in the diff. That keeps the tool fast, free, and fully private.
Longer additions or removals (more than a few words) are tagged as "Added" or "Removed," while short single-word swaps are tagged as minor. Changes involving money, dates, or obligation words are called out specifically since those tend to carry more weight in contracts and policies.
Yes — the diff works on any plain text, including code, comments, or Markdown. Whitespace and line breaks are preserved in the display so structure stays intact.
There's no hard limit, but very large documents (tens of thousands of words) may take a moment to diff since the comparison runs in your browser rather than on a server. For typical contracts, emails, or articles, it's instant.