CSP Evaluator
CSP Evaluator is a tool that allows developers to check if a Content Security Policy (CSP) serves as mitigation against XSS attacks.
As of June 2026, CSP Evaluator has 30,000 users and a 3.09/5 rating from 33 reviews in the Developer Tools category.
Usersno change0%
30.0K
30,000
Ratingdown 2.2 percent−2.2%
3.09
33 reviews
Reviewsup 3.1 percent+3.1%
33
Version
0.3.3
Manifest V3
History
3 snapshotsTracking since Apr 19, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 19, 2026 | 30.0K | 3.16 | 32 | 0.3.3 |
| May 11, 2026 | 30.0K | 3.16 | 32 | 0.3.3 |
| Jun 6, 2026 | 30.0K | 3.16 | 32 | 0.3.3 |
| Now | 30.0K | 3.09 | 33 | 0.3.3 |
Permissions & access
- Permissions
- storagewebRequest
- Host access
- <all_urls>
Screenshots
About
CSP Evaluator is a small tool that allows developers and security experts to check if a Content Security Policy (CSP) serves as a strong mitigation against cross-site scripting attacks. Reviewing CSP policies is usually a very manual process and most developers are not aware of CSP bypasses. CSP Evaluator checks are based on a large-scale empirical study and are aimed to help developers to harden their CSP. This tool is provided only for the convenience of developers and Google provides no guarantees or warranties for this tool.
Technical
- Version
- 0.3.3
- Manifest
- V3
- Size
- 296KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- fjohamlofnakbnbfjkohkbdigoodcejf
- Developer ID
- uba9ddd652da2564e944625d87bdc287c
- Developer Email
- [email protected]
- Created
- Aug 30, 2016
- Last Updated (Store)
- Apr 4, 2025
- Last Scraped
- Jun 6, 2026
- Website
- —
- Support URL
- https://csp.withgoogle.com
- Privacy Policy
- —
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Data sourced from the Chrome Web Store · last verified Jun 6, 2026.