react-is
npmv19.2.7Brand checking of React Elements.
Overview
react-is is an npm package that brand checking of React Elements. It is extremely widely used, with about 334M downloads per week and 2 known dependents in the graph. The latest version is 19.2.7, released under the MIT license.
Who should use it
Teams working in the npm ecosystem who need brand checking of React Elements and value a battle-tested, widely-adopted solution.
When not to use it
Consider an alternative if you need to have first-class TypeScript types out of the box, or if a more actively-maintained option better fits your npm stack.
Pros
- Large, well-established user base (334M weekly downloads).
- Clear open-source license (MIT).
- Zero runtime dependencies — minimal footprint.
Cons
- No bundled TypeScript types (may require a separate @types package).
Auto-generated from collected registry metadata. No external claims are inferred.
Relationship graph
Dependencies (left) and dependents (right) of react-is.
Used by
Popular packages that depend on react-is.
Alternatives to react-is
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Tools for making advanced Metro bundler features work
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Error overlay for universal Expo apps.
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Simple and complete React Native testing utilities that encourage good testing practices.
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Escape RegExp special characters
Version history
| Version | Published | License |
|---|---|---|
| 0.0.0-experimental-83840902-20260719 | 1 day ago | MIT |
| 19.3.0-canary-83840902-20260719 | 1 day ago | MIT |
| 0.0.0-experimental-172742b4-20260716 | 4 days ago | MIT |
| 19.3.0-canary-172742b4-20260716 | 4 days ago | MIT |
| 0.0.0-experimental-95f4603e-20260716 | 5 days ago | MIT |
| 19.3.0-canary-95f4603e-20260716 | 5 days ago | MIT |
| 0.0.0-experimental-b740af25-20260715 | 6 days ago | MIT |
| 19.3.0-canary-b740af25-20260715 | 6 days ago | MIT |
| 0.0.0-experimental-7023f501-20260714 | 7 days ago | MIT |
| 19.3.0-canary-7023f501-20260714 | 7 days ago | MIT |
| 0.0.0-experimental-c0c39a6b-20260709 | 11 days ago | MIT |
| 19.3.0-canary-c0c39a6b-20260709 | 11 days ago | MIT |
| 0.0.0-experimental-5123b063-20260708 | 12 days ago | MIT |
| 19.3.0-canary-5123b063-20260708 | 12 days ago | MIT |
| 0.0.0-experimental-df4bd1b4-20260708 | 13 days ago | MIT |
| 19.3.0-canary-df4bd1b4-20260708 | 13 days ago | MIT |
| 0.0.0-experimental-12a4baec-20260707 | 14 days ago | MIT |
| 19.3.0-canary-12a4baec-20260707 | 14 days ago | MIT |
| 0.0.0-experimental-23def8fd-20260706 | 15 days ago | MIT |
| 19.3.0-canary-23def8fd-20260706 | 15 days ago | MIT |
Keywords
Frequently asked questions
How do I install react-is?
Run `npm install react-is` to add react-is to your npm project.
What license is react-is released under?
react-is is distributed under the MIT license.
How popular is react-is?
react-is has approximately 333,975,552 downloads per week and 2 known dependent packages.