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Chrome extensionwhat they say

UI Inspector

UI Inspector - Visual CSS Editor

Inspect and visually edit elements and their CSS directly on the page for faster design and UI debugging.

★★★★☆4.0 (21) · 5k+ users
Free
Website ↗ Chrome Web Store ↗
what mrrlens sees
MRR · No price listedNo price in the listing
Opportunity—
Buyer threads · 30 d0
“no devtools support and you cannot write your own custom css to the page”
#1 complaint · Missing Feature · 1 of 3 complaints read · analysed Oct 31, 2026 · source

01Revenue

No price in the listing

Store data from the Chrome Web Store listing, refreshed daily. Updated 5 d ago.

02Why users leave UI Inspector

Missing Feature1 review · 1 of 3

No DevTools support and no way to write custom CSS to the page.

“no devtools support and you cannot write your own custom css to the page” source ↗

Sample: 3 recent complaints (1–3★ reviews) · clustered Oct 31, 2026 · complaints from May 2025–Apr 2026, almost all in the last 24 months · each review labelled by a model, quotes verbatim

03How to build a better UI Inspector

Build difficultyLowBrowser extension; no payments, regulation, hardware, or network effects; main work is CSS accuracy and DevTools integration.
Three build ideas that answer these complaintsIncluded in the day pass and Pro.
Unlock

04Who wants a better UI Inspector

0 buyer threads in the last 30 days name UI Inspector, and 4 more are in the same market.

05Questions about UI Inspector

How much revenue does UI Inspector make?

UI Inspector's listing publishes no price and no paid plan, so MRRLens shows no revenue estimate. It may still charge on its own website; a founder can verify the real figure.

What do users complain about most in UI Inspector?

Across 3 recent complaints, the most common is missing feature (1 of 3). No DevTools support and no way to write custom CSS to the page.

What are the best UI Inspector alternatives?

The closest alternatives MRRLens found are Visual Inspect UI and Hoverify. The full list, with why users leave, is on the UI Inspector alternatives page.

How many people use UI Inspector?

UI Inspector lists 5k+ users on the Chrome Web Store, rated 4.0 (21).

See the full x-ray of UI Inspector

Full 1-star breakdown with verbatim quotes, the build blueprint and every live thread — on every product.