CORS Doctor
Offline CORS error analyzer — diagnoses cross-origin issues with actionable fixes
As of June 2026, CORS Doctor has 9 users and a 5.00/5 rating from 1 reviews in the Developer Tools category.
Usersup 12.5 percent+12.5%
9
9
Ratingno change0%
5.00
1 reviews
Reviewsno change0%
1
Version
1.0.0
Manifest V3
History
7 snapshotsTracking since Apr 1, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 1, 2026 | 8 | 5.00 | 1 | 1.0.0 |
| Apr 17, 2026 | 6 | 5.00 | 1 | 1.0.0 |
| Apr 27, 2026 | 6 | 5.00 | 1 | 1.0.0 |
| May 4, 2026 | 6 | 5.00 | 1 | 1.0.0 |
| May 15, 2026 | 7 | 5.00 | 1 | 1.0.0 |
| May 21, 2026 | 6 | 5.00 | 1 | 1.0.0 |
| May 28, 2026 | 8 | 5.00 | 1 | 1.0.0 |
| Now | 9 | 5.00 | 1 | 1.0.0 |
Permissions & access
- Permissions
- None declared
- Host access
- None declared
Screenshots
About
CORS Doctor is a powerful, fully offline DevTools extension that instantly analyzes and explains CORS (Cross-Origin Resource Sharing) errors directly inside your browser. Instead of wasting time searching for vague error messages like “No ‘Access-Control-Allow-Origin’ header present,” CORS Doctor inspects failed network requests, evaluates request and response headers using a deterministic rule engine, and clearly identifies the exact root cause. It provides accurate explanations along with copy-ready fixes for popular backend frameworks with Java, Python, JavaScript Backends and Nginx as well. With zero AI, no cloud calls, and no data tracking, the extension works entirely on your machine—making it secure, fast, and enterprise-friendly. Designed for frontend developers, backend engineers, and DevOps teams, CORS Doctor helps you diagnose, understand, and fix CORS issues in seconds instead of minutes.
Technical
- Version
- 1.0.0
- Manifest
- V3
- Size
- 65.09KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- ghfphdmpgghobcghhidffkjhandkbhpa
- Developer ID
- u684341e3d2f2e5e038cb8fd11941256d
- Developer Email
- [email protected]
- Created
- Feb 24, 2026
- Last Updated (Store)
- Mar 5, 2026
- Last Scraped
- Jun 4, 2026
- Website
- —
- Support URL
- —
- Privacy Policy
- —
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Data sourced from the Chrome Web Store · last verified Jun 4, 2026.