Uiprobe for Frontend Developers — Compare your implementation against Figma

For Frontend Developers

See exactly where your implementation diverges from the design.

Before the review.

Uiprobe compares the live page against the Figma frame and shows every visual difference with exact expected and actual values. No more eyeballing specs.

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Uiprobe detecting an incorrect font size on a live web page, showing expected and actual values

the problem

Cross-referencing Figma specs in the browser is a time sink.

You open DevTools, switch to Figma, compare a value, switch back. Then the next element. Then the next. Across a full page, it adds up fast.

And when a designer or stakeholder flags a spacing value or a font weight after the review, you're back in the code for something a quick check would have caught earlier.

how it works

From Figma frame to visual comparison in seconds.

Three steps. No setup beyond a Figma sign-in.

Step 01

Paste the URLs.

Provide the Figma frame URL and the webpage URL. That's all Uiprobe needs.

Step 02

Uiprobe runs the comparison.

The comparison runs automatically, mapping elements between the design and the live page.

Step 03

Review the findings

Every visual difference is surfaced with the expected value from Figma and the actual value on the page. Font size, spacing, color, content. No guessing what's off or by how much.

Why frontend developers use Uiprobe

Stop switching between Figma and DevTools to compare values.

Four reasons it fits your workflow.

Expected vs actual, for every finding

Each finding shows what Figma specifies and what the page renders. The font size that's 14px instead of 16px. The spacing that's 20px instead of 12px. No ruler needed.

Works on localhost and staging

The Chrome Extension runs comparisons on localhost, staging environments, and login-gated pages. You don't need to deploy to a public URL first.

Re-run after fixes

Every comparison is saved as a version. Fix what matters, re-run, and see the delta. Version history shows what changed between runs so you can confirm each fix landed correctly.

One comparison, full coverage

Spacing, fonts, colors, layout, content — all checked in a single run. No need to inspect elements one by one or work through a manual checklist.

Already checking by hand?

Uiprobe checks every element against Figma in seconds. So you don't have to.

Comparing every spacing value, font weight, and color token against Figma by hand takes time. Especially across a full page, especially under deadline pressure.

Run a comparison before the review, fix what's off, and hand it over knowing where things stand.

Ship UI that reflects the design.
Without eyeballing it.