Comment Anywhere makes the web social through threads. Web Reactions makes the web more expressive through counts.
Comment Anywhere's Chrome Web Store card describes a universal comment layer tied to page URLs, with Supabase login, profiles, threaded replies, and emoji reactions on comments. The public card lists 2 users and no ratings as of this review.
Web Reactions is not a comment-thread product. It focuses on verified emoji reactions attached to supported targets, with public source code and a privacy posture built around not collecting browsing history.
| Web Reactions | Comment Anywhere | |
|---|---|---|
| Primary job | Verified emoji reaction counts | Universal comment threads on webpages |
| Feedback format | One emoji reaction per verified account per target | Comments, replies, profiles, and emoji reactions on comments |
| Sites covered | Supported-site adapters | Any webpage, per the Chrome Web Store card |
| Identity model | One-time email verification, then an irreversible account hash | Email/password registration via Supabase, per the store card |
| Data disclosed by store card | No web history or authentication-info collection | Personally identifiable information and authentication information |
| Source code | Public on GitHub, GPL-3 | Privacy policy links to GitHub; source repository is not linked as project code |
| Last public update | Continuous project updates | September 16, 2025 on the Chrome Web Store card |
Comment Anywhere uses emoji reactions as part of a comment system. Web Reactions uses emoji reactions as the product itself: the thing being counted is the page target, not a written comment beneath it.
Comment Anywhere describes user registration, profiles, display names, and email/password authentication. Web Reactions uses email verification only to establish one account per person; reading counts does not require signing in.
Comment Anywhere's public Chrome Web Store card lists 2 users and no ratings. That does not make the idea bad, but it does mean users should treat any visible community signal as extremely sparse until adoption grows.
The Web Reactions browser extension is public on GitHub. Users can inspect supported-site adapters, target derivation, popup behavior, and count reads directly. Comment Anywhere's public listing describes the architecture at a high level, but does not expose the extension source as a public repo.
Pick Comment Anywhere if you want threaded public discussions on arbitrary URLs and are comfortable with a very early community.
Pick Web Reactions if you want focused, verified emoji counts without adding another comment system to the page.
