Extension Tracker

Mobile simulator - responsive testing tool

1,000,000 users Rated 4.90 from 5,191 ratings Last updated 21 Sep 2026

By François Duprat Live in the Chrome Web Store ckejmhbmlajgoklhgbapkiccekfoccmk Last checked 26 Sep 2026, 23:13 UTC

The listing

What the Chrome Web Store shows, as of the last check

Phone Simulator — Free Chrome Extension to test and preview your site on 80+ devices.Summary from the listing
Developer
François Duprat
Trader status
Declared a trader under EU law
Category
Productivity › Tools
First published
5 May 2020
Last updated
21 Sep 2026
Version
4.21.2
Size
7.76 MiB
Minimum Chrome
88
Languages
52 languages

Deutsch, English, Filipino, Indonesia, Kiswahili, Melayu, Nederlands, Tiếng Việt, Türkçe, català, dansk, eesti, español, español (Latinoamérica), français, hrvatski, italiano, latviešu, lietuvių, magyar, norsk, polski, português (Brasil), português (Portugal), română, slovenčina, slovenščina, suomi, svenska, čeština, Ελληνικά, български, русский, српски, українська, עברית, العربية, فارسی, मराठी, हिन्दी, বাংলা, ગુજરાતી, தமிழ், తెలుగు, ಕನ್ನಡ, മലയാളം, ไทย, አማርኛ, 中文（中国）, 中文（台灣）, 日本語, 한국어

Open in the Chrome Web Store ↗ Download the CRX from Google ↗
Users over time As shown on the Chrome Web Store

Tracking began on 26 Sep 2026. The chart appears after the second check.

Show the numbers
CheckedUsersRatingRatings
2026-09-261,000,0004.905,191
Users, 7 days
–
needs a week of history
Users, 30 days
–
needs a month of history
Rank
#176
by users, of 264,254 extensions
In its category
#31
of 103,321 in Tools

What changed

Every change found on a check, newest first

No changes found since tracking began on 26 Sep 2026.

What it can access

From the extension's manifest, in plain language

Every websiteIt can read and change your data on all the sites you visit.
Sites
  • *://*/*Every website
  • <all_urls>Every website
Sites where it runs scripts
  • <all_urls>Every website
Browser features
  • activeTabThe tab you're on, only after you click the extension
  • commandsAdd keyboard shortcuts
  • contextMenusAdd items to the right-click menu
  • declarativeNetRequestBlock or change network requests, using rules
  • offscreenOpen a hidden page for background work
  • scriptingRun scripts on sites it can reach
  • storageSave settings and data in your browser
  • tabCaptureCapture video and sound from tabs
  • tabsRead the addresses and titles of your tabs
  • webNavigationFollow your browsing, page by page
  • webRequestWatch network requests on the sites it can reach

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 26 Sep 2026, 23:13 UTC; next check around 30 Sep 2026.

We don't copy descriptions, screenshots or developers' contact details. How we collect the data

Cite this page

Extension Tracker. “Mobile simulator - responsive testing tool” (ckejmhbmlajgoklhgbapkiccekfoccmk). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/ckejmhbmlajgoklhgbapkiccekfoccmk. Accessed 2026-09-27.
BibTeX
@misc{extensiontracker_ckejmhbmlajgoklhgbapkiccekfoccmk,
  title   = {Mobile simulator - responsive testing tool (ckejmhbmlajgoklhgbapkiccekfoccmk)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/ckejmhbmlajgoklhgbapkiccekfoccmk},
  urldate = {2026-09-27}
}

The data is free to reuse under CC BY 4.0.