Codex Dev
Developer's Insight Tool - View your website in multiple responsive screen sizes simultaneously with synchronized scrolling.
As of June 2026, Codex Dev has 1,000 users and a 5.00/5 rating from 2 reviews in the Developer Tools category.
Usersup 1940.8 percent+1940.8%
1.0K
1,000
Ratingno change0%
5.00
2 reviews
Reviewsno change0%
2
Version
1.2.0
Manifest V3
History
10 snapshotsTracking since Apr 1, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 1, 2026 | 49 | — | — | 1.2.0 |
| Apr 11, 2026 | 64 | — | — | 1.2.0 |
| Apr 20, 2026 | 95 | 5.00 | 2 | 1.2.0 |
| Apr 27, 2026 | 151 | 5.00 | 2 | 1.2.0 |
| May 5, 2026 | 200 | 5.00 | 2 | 1.2.0 |
| May 10, 2026 | 261 | 5.00 | 2 | 1.2.0 |
| May 16, 2026 | 440 | 5.00 | 2 | 1.2.0 |
| May 22, 2026 | 581 | 5.00 | 2 | 1.2.0 |
| May 28, 2026 | 745 | 5.00 | 2 | 1.2.0 |
| Jun 4, 2026 | 940 | 5.00 | 2 | 1.2.0 |
| Now | 1.0K | 5.00 | 2 | 1.2.0 |
Permissions & access
- Permissions
- activeTabtabsstoragescriptingdeclarativeNetRequestdeclarativeNetRequestWithHostAccess
- Host access
- <all_urls>
Screenshots
About
🚀 Codex Dev – Responsive Testing, Live Editing & Asset Extraction Codex Dev is an all-in-one developer toolkit that combines responsive testing, live HTML/CSS editing, and asset extraction in a single powerful interface. 🔥 What You Can Do 🖥 Test Multiple Devices Side-by-Side View any website across mobile, tablet, and desktop breakpoints simultaneously. ✏ Live Edit HTML, CSS & Media Queries Modify styles, animations, and layout in real time. 🎯 Inspect Pseudo-Classes & Breakpoints Debug :hover, :focus, ::before, media queries, and more. 🎨 Visual Editor Style elements visually and see instant updates. 📦 Export to CodePen Copy full components with one click. 🖼 Extract Assets (Even from IFrames) Filter, sort, and download all assets as a ZIP file instantly. 🔒 100% Local Processing No tracking. No analytics. No data collection. 🆓 Completely Free & Open Source Built by developers. For developers.
Technical
- Version
- 1.2.0
- Manifest
- V3
- Size
- 1.86MiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- gnnbnbgkpgpfhfbclhefdolgeagkdmmb
- Developer ID
- u3f828bc07264523a98fcfa8eb3f3c480
- Developer Email
- [email protected]
- Created
- Jan 5, 2026
- Last Updated (Store)
- Mar 1, 2026
- Last Scraped
- Jun 4, 2026
- Website
- —
- Support URL
- —
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Data sourced from the Chrome Web Store · last verified Jun 4, 2026.