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CheckDiffs

See what an AI edit changed. No account for the basics.

Paste before & after — see what an AI rewrite actually changed. CheckDiffs is a free, in-browser side-by-side diff (Monaco). Built for vibe-coding and long chat refactors: jump hunks, merge lines, no account for basic compare, nothing uploaded for that flow. Not a PDF/Excel suite. Not “better than VS Code.” Just a simple standalone clipboard moment. Try it: https://checkdiffs.com Privacy: https://checkdiffs.com/privacy

Top comment

Hi Product Hunt — I'm FT.

I built CheckDiffs while vibe-coding with Gemini. I'd generate a new version, then another, and I needed a quick way to see what the model actually changed before I kept it — without uploading code or making an account just to look.

CheckDiffs: paste before and after, Monaco shows the diff in your browser. Basic compare is free, no account, nothing leaves your machine for that flow.

Try it: https://checkdiffs.com

What are you comparing these days — AI refactors, two prompts, docs, or something else?

About CheckDiffs on Product Hunt

“See what an AI edit changed. No account for the basics.”

CheckDiffs was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #414 on the daily leaderboard. Paste before & after — see what an AI rewrite actually changed. CheckDiffs is a free, in-browser side-by-side diff (Monaco). Built for vibe-coding and long chat refactors: jump hunks, merge lines, no account for basic compare, nothing uploaded for that flow. Not a PDF/Excel suite. Not “better than VS Code.” Just a simple standalone clipboard moment. Try it: https://checkdiffs.com Privacy: https://checkdiffs.com/privacy

On the analytics side, CheckDiffs competes within Productivity, Developer Tools and Artificial Intelligence — topics that collectively have 1.7M followers on Product Hunt. The dashboard above tracks how CheckDiffs performed against the three products that launched closest to it on the same day.

Who hunted CheckDiffs?

CheckDiffs was hunted by FT. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.

For a complete overview of CheckDiffs including community comment highlights and product details, visit the product overview.