--- title: "Screen Ruler - Measure and Inspect the Web – Chrome extension stats, history and permissions" description: "50,000 users, rated 4.25 by 63 people. Version 4.21.1, updated 2026-10-28. Requests 8 permissions." url: "https://extensiontracker.com/extension/jfbbgijjljfbolelfkopkhbfjajjampm" --- # Screen Ruler - Measure and Inspect the Web Live in the Chrome Web Store. - Users: 50,000 - Rating: 4.25 from 63 ratings - Last checked: 2026-11-12 02:20 UTC - Users gained in 7 days: No change - Users gained in 30 days: −10,000 (-16.7%) - Rank by users: #2,466 of 292,131 live extensions - Rank in Developer Tools: #222 of 30,442 ## The listing What the Chrome Web Store shows, as of the last check. Summary from the listing: > Web inspector for designers & developers. Measure elements, extract CSS & colors, capture screenshots & more. - Extension ID: `jfbbgijjljfbolelfkopkhbfjajjampm` - Developer: [Mr Violets](https://extensiontracker.com/developer/ub35186ba2fe065983d099b234cc90e37) - Enhanced Safe Browsing: Trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing)) - Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer) - First published: 2024-03-29 - Last updated: 2026-10-28 - Version: `4.21.1` - Size: 1.0 MiB - Minimum Chrome: 116 - Languages (22): Deutsch, English, Indonesia, Nederlands, Tiếng Việt, Türkçe, español, français, italiano, polski, português (Brasil), português (Portugal), čeština, русский, українська, العربية, हिन्दी, ไทย, 中文（中国）, 中文（台灣）, 日本語, 한국어 - Website: `screen-ruler.com` - Chrome Web Store: - View its code or download CRX: - Search Google for the ID: ## Users over time One row per check, newest first, as shown on the Chrome Web Store. | Checked | Users | Rating | Ratings | | --- | ---: | ---: | ---: | | 2026-11-12 | 50,000 | 4.25 | 63 | | 2026-11-04 | 50,000 | 4.29 | 62 | | 2026-10-29 | 60,000 | 4.29 | 62 | | 2026-10-26 | 70,000 | 4.29 | 62 | | 2026-10-24 | 70,000 | 4.29 | 62 | | 2026-10-23 | 70,000 | 4.29 | 62 | | 2026-10-21 | 70,000 | 4.29 | 62 | | 2026-10-19 | 70,000 | 4.29 | 62 | | 2026-10-16 | 60,000 | 4.29 | 62 | | 2026-10-14 | 60,000 | 4.29 | 62 | | 2026-10-06 | 60,000 | 4.29 | 62 | | 2026-09-30 | 60,000 | 4.29 | 62 | | 2026-09-27 | 60,000 | 4.29 | 62 | ## What changed Every change found on a check, newest first. - 2026-10-29: New version `4.21.1`, replacing `4.21.0`. - 2026-10-26: New version `4.21.0`, replacing `4.20.1`. - 2026-10-24: New version `4.20.1`, replacing `4.20.0`. - 2026-10-23: New version `4.20.0`, replacing `4.19.0`. - 2026-10-21: New version `4.19.0`, replacing `4.18.1`. - 2026-10-19: New version `4.18.1`, replacing `4.18.0`. - 2026-10-16: New version `4.18.0`, replacing `4.17.0`. - 2026-09-30: New version `4.17.0`, replacing `4.16.2`. ## Developer history Moves to another publisher account and new contact emails, newest first. No move to another account and no new contact email since tracking began on 2026-09-27. We know contact emails only by a keyed hash, so they're never shown. Recent changes: [Account and contact changes](https://extensiontracker.com/owners/). ## What it can access From the extension's manifest, in plain language. ### Browser features - `activeTab`: The tab you're on, only after you click the extension - `contextMenus`: Add items to the right-click menu - `declarativeContent`: Act on what a page contains, without reading it - `declarativeNetRequestWithHostAccess`: Block or change network requests on the sites it can reach - `offscreen`: Open a hidden page for background work - `scripting`: Run scripts on sites it can reach - `sidePanel`: Show a side panel - `storage`: Save settings and data in your browser ### Asked for later, if you agree - `clipboardWrite`: Change what's in your clipboard - `downloads`: Manage your downloads - ``: Every website ## More from this developer Other extensions from the same publisher account. | Extension | Users | Rating | Ratings | Category | | --- | ---: | ---: | ---: | --- | | [Stay Awake: Keep Your Computer Awake](https://extensiontracker.com/extension/gofaiibillcpfajafckhoieamembimje) | 10,000 | 4.50 | 4 | Workflow & Planning | | [UI Inspector - Visual CSS Editor](https://extensiontracker.com/extension/dadpnbadaicglhbgoboopllcbemfipoo) | 5,000 | 4.00 | 21 | Developer Tools | | [Marble: Automatically Organized Tab Groups](https://extensiontracker.com/extension/faadmipaelbkbdfjkfpiiomoplihjhdm) | 2,000 | 4.50 | 26 | Workflow & Planning | | [Deep Tab Search: Tab Switcher & Search](https://extensiontracker.com/extension/dbppkkjmaloclihjakcpnionomlidbhk) | 886 | 3.25 | 12 | Workflow & Planning | | [Quilt - Tiling Window Manager](https://extensiontracker.com/extension/ikjaecdfcaoegkfgjhhkjgcpmackbnki) | 764 | 5.00 | 3 | Workflow & Planning | | [CSS Viewer - Inspect & Copy Any Element's CSS](https://extensiontracker.com/extension/bbiflmjfnokkgbppcenonccmfkhoaehb) | 473 | – | – | Developer Tools | | [Pointer - Element Inspector for DevTools](https://extensiontracker.com/extension/keomkegfndepkhgeeediaeemebnnjafc) | 202 | 3.00 | 2 | Developer Tools | | [Responsive Tester - Mobile View, Breakpoint Checker & CSS Editor](https://extensiontracker.com/extension/ekefkjaknejhmepccobnpdedfdkjcali) | 89 | – | – | Developer Tools | | [Hintly - AI Meeting Assistant for Google Meet™](https://extensiontracker.com/extension/dmhalnggmfjelodiondelicaecaooabo) | 87 | – | – | Communication | | [AltCue - Tab Switcher](https://extensiontracker.com/extension/kdlbchidplmkbcihfjgambelnaaaienc) | – | 1.00 | 1 | Functionality & UI | All 11 extensions by [Mr Violets](https://extensiontracker.com/developer/ub35186ba2fe065983d099b234cc90e37). ## About this data Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 2026-11-12 02:20 UTC; next check around 2026-11-19. How the data is collected: . ## Cite this page Extension Tracker. “Screen Ruler - Measure and Inspect the Web” (jfbbgijjljfbolelfkopkhbfjajjampm). Chrome Web Store data, last checked 2026-11-12. https://extensiontracker.com/extension/jfbbgijjljfbolelfkopkhbfjajjampm. Accessed 2026-11-13. ```bibtex @misc{extensiontracker_jfbbgijjljfbolelfkopkhbfjajjampm, title = {Screen Ruler - Measure and Inspect the Web (jfbbgijjljfbolelfkopkhbfjajjampm)}, author = {{Extension Tracker}}, year = {2026}, note = {Chrome Web Store data, last checked 2026-11-12}, url = {https://extensiontracker.com/extension/jfbbgijjljfbolelfkopkhbfjajjampm}, urldate = {2026-11-13} } ``` --- From Extension Tracker, a public record of the Chrome Web Store: . It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (), crediting Extension Tracker. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.