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Difframe
Overlay a live site or Figma prototype on the page you build
Difframe overlays a reference site or Figma prototype on the page you're building — as a live iframe, not a screenshot. Because the reference is a real page, it never goes stale and scrolls like the real thing. Switch on Difference blend mode and every matching area turns black, leaving only the misalignment on screen. Presets store the URL, opacity, scale, size, position and blend mode, scoped per tab, page or host — so two tabs can compare desktop and mobile at once. Free, MIT, no tracking.
Hi Product Hunt 👋
I build websites, and checking my work against the design always came down to the same loop: screenshot the reference, load it into an overlay tool, notice the screenshot is already out of date, repeat.
So Difframe overlays the actual page instead of a picture of it. The reference is a real iframe, so it's never stale, you can scroll both together, and you can click through the reference itself.
The part I reach for most is Difference blend mode — at opacity 1.0 everything that matches turns black, so a 1px gap is impossible to miss. It has also turned out to be handy for checking AI-generated implementations and catching typos against the original copy.
It's free, MIT-licensed, and collects no data. Chrome and Firefox.
Happy to answer any questions!
About Difframe on Product Hunt
“Overlay a live site or Figma prototype on the page you build”
Difframe was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #72 on the daily leaderboard. Difframe overlays a reference site or Figma prototype on the page you're building — as a live iframe, not a screenshot. Because the reference is a real page, it never goes stale and scrolls like the real thing. Switch on Difference blend mode and every matching area turns black, leaving only the misalignment on screen. Presets store the URL, opacity, scale, size, position and blend mode, scoped per tab, page or host — so two tabs can compare desktop and mobile at once. Free, MIT, no tracking.
On the analytics side, Difframe competes within Chrome Extensions, Design Tools, Developer Tools and GitHub — topics that collectively have 875.6k followers on Product Hunt. The dashboard above tracks how Difframe performed against the three products that launched closest to it on the same day.
Who hunted Difframe?
Difframe was hunted by Kite. 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 Difframe including community comment highlights and product details, visit the product overview.
Kite