Laying out the streets…STEP 1 OF 3

Open Inspector · House #29,154

Hover any website, get its design system. No permissions.

In the Quick developer utilities neighborhood (Developer). In town since 2 Oct 2026.

Nobody has claimed this house yet. Tablif records every new product and gives it a house; when its owner claims it, the lights go on.

Is this yours? Claim it

What Tablif read on Open Inspector's site

Open Inspector describes itself as: “Open Inspector — inspect any page, with no site access”

What it is

Calls itself “browser extension”.

  • Calls itself: browser extension
“A free, open-source browser extension for inspecting layout, styles, colour, type and assets on any page”

Where it puts itself

Claims “the shortest true sentence”. Rules out “No screenshots, console or network debugging.”.

  • Superlative claim: the shortest true sentence
  • Says it will not: No screenshots, console or network debugging.
“Unlike the popular alternatives, it requests no site access and makes zero network requests.”
“It is the shortest true sentence about this project, and the only one the other three cannot write.”

What it costs

A free tier, free forever. No monthly or yearly plan. No one-time option.

  • One-time: no
  • Monthly: no
  • Yearly: no
  • Free plan: free forever
“Free · MIT · no account”
“A free, open-source browser extension”

How it runs

A browser extension. Runs locally and works offline. Distributed through the Chrome Web Store. Open source. Built with GitHub Pages.

  • Kind: extension
  • Runs where: on the device, offline
  • Distributed via: Chrome Web Store
  • Open source: yes
  • Built with: GitHub Pages
“A free, open-source browser extension for inspecting layout, styles, colour, type and assets on any page”
“A free, open-source browser extension for inspecting layout, styles, colour, type and assets on any page,”

What it works with

Names CSS Peeper, Chrome and 4 more on its pages.

  • Names: CSS Peeper · Chrome · Claude · +3
“CSS Peeper”
“Chrome”

What it offers as proof

Live, no waitlist. Try it without signing up.

  • Instant signup: yes
  • Trial asks for: nothing
“Install extension”
“MIT, no account.”

Sources

Tablif read these pages, last on 2 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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