React Developer Tools vs JSON Viewer Pro
React Developer Tools and JSON Viewer Pro both compete in the same corner of the Chrome Web Store (json), but they are built for different users. React Developer Tools has roughly 5M users and a 3.9-star average; JSON Viewer Pro sits at about 300K users with 4.6 stars.
JSON Viewer Pro
4.6A powerful JSON viewer and formatter that offers advanced features for developers and data analysts to visualise and analyse JSON
Side-by-side comparison
| React Developer Tools | JSON Viewer Pro | |
|---|---|---|
| Rating | 3.9 / 5 | 4.6 / 5 |
| Reviews | 1,600 | 218 |
| Users | ~5M+ | ~300K+ |
| Pricing | Free | Free |
| Category | Developer Tools | Developer Tools |
| Developer | Meta | addonise.com |
| Last updated | 2026-06-11 | 2026-09-02 |
| Best for | React developers debugging component state and render performance. | A powerful JSON viewer and formatter that offers advanced features for developers and data analysts to visualise and analyse JSON |
Final recommendation
React Developer Tools wins on adoption, but JSON Viewer Pro scores higher with reviewers — start there if ratings matter more.
Frequently asked questions
Can I install React Developer Tools and JSON Viewer Pro at the same time?
Yes, Chrome runs them independently. Keep both only if they do different jobs; if they overlap, pick one, because each active extension adds memory use, page scripts and another set of permissions.
Where do the ratings and install numbers come from?
From each extension's public Chrome Web Store listing. They can lag the live store slightly, and a dash means the figures have not been synced yet.
Keep researching
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