A different approach to visual validation. Both tools connect to Figma and compare against a live page. This is what we do differently, and why.
Pixelay connects to Figma and overlays frames on your page. We do too, and then go further. This page shows where.
What we do differently
Four decisions that make
Uiprobe a different tool.
We didn't set out to build a faster overlay. We set out to read the page, read
the frame, and tell you what diverges — with values, not vibes.
01
We run the comparison for you.
Uiprobe reads the live DOM, talks to the Figma frame, and runs the diffitself. You get back findings — what diverged, where it lives in the code,and by how much. No squinting at an overlay to tell whether something'sa pixel out.
Vs.
Pixelay overlays a Figma frame on the page and leaves the judgment to your eye.
02
We read from Figma. Not a screenshot of it.
Pixelay uploads rasterised images of your frames to a comparison URL. When the design changes, you re-upload. Uiprobe reads directly from Figma every time you run. No stale snapshots, no re-export. The comparison always reflects the current frame.
Vs.
Pixelay compares against uploaded images that go stale when the design updates.
03
We give you exact values.
Every finding shows the expected value from the frame and the actual value on the page, side by side, in mono. Typography, color, size, spacing. Read off both ends of the comparison so the conversation is about the number, not the eye that saw it.
Vs.
Pixelay includes a pixel ruler, but delta values aren't automatic.
04
We save every run. You see the delta.
Re-run after a fix and the new result sits next to the previous one. You see exactly what cleared, what's still open, and how the numbers moved. No screenshots, no side-by-side tabs. The tool tracks progress for you.
Vs.
Pixelay comparisons live in the session. Close it and start over.
Annotated spec sheet
The whole comparison
in one read.
Aspect by aspect. Plain values. No scoring. Read the row that matters most
for your team and ignore the rest.
Uiprobe
Pixelay
Figma integration
paste frame URL
Direct connection. No export step.
upload images
Export frames from the plugin, upload to a comparison URL.
Detection method
automated
Findings surfaced for you, grouped by category.
manual overlay
You judge the difference by eye.
Exact delta values
expected → actual
Per finding, in mono. No ambiguity about what diverged.
pixel ruler
Ruler available for measuring. Values not surfaced automatically.
Version history
every run saved
Re-run after a fix and read the delta against the previous run.
session-based
Comparison lives for the session. No persistent history.
Localhost & staging
via Chrome extension
Runs on any page Chrome can open — including pages behind login.
via Chrome extension
Same browser-native reach.
Setup
sign in with Figma
paste URL
Two steps. Then you're running probes.
run plugin
open comparison URL
Plugin generates a URL, then open it with the extension active.
Free tier
10 probes / month
Free forever. No ads. Personal use.
10 free trials
Then a limited free version with fewer features.
Who we built this for
If you check the same
screens more than once,
this is what we built.
Uiprobe fits a specific kind of workflow. Simpler tools exist for simpler
needs but if any of this sounds like the work you do, you're the reason
this exists.
01
You probe the same screens through a fix-and-recheck loop, and you want a record of what changed run to run, not a
screenshot folder.
02
You'd rather argue about a number than a feeling. Expected vs
actual values beat "looks about right" every time.
03
Most of the pages you need to check live on localhost or behind a
login. A public-page-only tool isn't enough.
04
You've got a Figma seat and you want the design source pulled
in directly, not copied, exported, or re-uploaded each time
it changes.
Why we built it
We got tired of measuring by hand.
We're two builders shipping product UIs. The tools we had let us
see something was off, they didn't tell us what, where, or by how
much. So we built the one we wanted. If you've felt that same
friction, Uiprobe is for you.
Stop pixel-peeping by hand.
Free to start. No credit card. See your first comparison in under a minute.
