react-is
npmv19.2.8Brand checking of React Elements.
Safe to adopt
Yes — react-is scores well across adoption, maintenance, weight, supply chain, and licensing. No download data reported for this package yet. Last published 50 days ago. 50 releases in the last 2 years.
- ?Adoption: grade ?, Not reported by this registry.
No download data reported for this package yet.
- AMaintenance: grade A, Excellent.
Last published 50 days ago. 50 releases in the last 2 years.
- AWeight: grade A, Excellent.
Zero runtime dependencies, about 13 KB installed.
- ASupply chain: grade A, Excellent.
No install scripts, 2 maintainers, and a contained dependency surface.
- ALicense: grade A, Excellent.
MIT — permissive, with no copyleft found in the dependency tree.
Grades are computed deterministically from registry metadata collected by PackageGraph — downloads, dependents, publish dates, the resolved dependency tree, maintainer count, and declared licenses. No third-party scores are used.
Install cost
What you actually take on by adding react-is to a project.
Runtime packages this one declares itself.
Distinct packages in the full runtime tree, deduplicated the way a package manager would.
Unpacked size of this package plus its entire runtime tree.
Longest resolved dependency chain below this package.
Compatibility
- Node.js
- No constraint declared
- Module format
- CommonJS only
- TypeScript
- No bundled types
- Install scripts
- None
Quick start
A usage example from the react-is README.
import React from "react";
import * as ReactIs from "react-is";
class ClassComponent extends React.Component {
render() {
return React.createElement("div");
}
}
const FunctionComponent = () => React.createElement("div");
const ForwardRefComponent = React.forwardRef((props, ref) =>
React.createElement(Component, { forwardedRef: ref, ...props })
);react-is vs the alternatives
Packages solving a similar problem in the npm ecosystem, compared on the signals that drive an adoption decision.
| Package | Weekly downloads | Dependents | License | Last release |
|---|---|---|---|---|
| react-isthis page | 0 | 2 | MIT | 1 month ago |
| react | 152.8M | 82 | MIT | 1 day ago |
| react-dom | 143.7M | 47 | MIT | 1 day ago |
| react-style-singleton | 59.1M | 2 | MIT | 1 day ago |
| reselect | 44M | 1 | MIT | 1 day ago |
| next | 40.6M | 0 | MIT | 1 day ago |
Used by
Popular packages that depend on react-is.
Relationship graph
Dependencies (left) and dependents (right) of react-is.
Frequently installed together
Native navigation primitives for your React Native app.
Simple and complete React Native testing utilities that encourage good testing practices.
Declarative API exposing native platform touch and gesture system to React Native
The Expo SDK
More powerful alternative to Animated library for React Native.
Tools for making advanced Metro bundler features work
React Native for Web
Error overlay for universal Expo apps.
React Server Components bindings for DOM using Webpack. This is intended to be integrated into meta-frameworks. It is not intended to be imported directly.
Escape RegExp special characters
React is a JavaScript library for building user interfaces.
React package for working with the DOM.
Release history
50 releases in the last two years, typically about 0 days apart.
| Version | Published | Size | License |
|---|---|---|---|
| 0.0.0-experimental-6c0e1047-20260908 | 1 day ago | 13 KB | MIT |
| 19.3.0-canary-6c0e1047-20260908 | 1 day ago | 13 KB | MIT |
| 0.0.0-experimental-f1f7ed2a-20260904 | 2 days ago | 13 KB | MIT |
| 19.3.0-canary-f1f7ed2a-20260904 | 2 days ago | 13 KB | MIT |
| 0.0.0-experimental-8425b691-20260904 | 5 days ago | 13 KB | MIT |
| 19.3.0-canary-8425b691-20260904 | 5 days ago | 13 KB | MIT |
| 0.0.0-experimental-d9f4e76b-20260903 | 6 days ago | 13 KB | MIT |
| 19.3.0-canary-d9f4e76b-20260903 | 6 days ago | 13 KB | MIT |
| 0.0.0-experimental-f4e439e1-20260902 | 7 days ago | 13 KB | MIT |
| 19.3.0-canary-f4e439e1-20260902 | 7 days ago | 13 KB | MIT |
| 0.0.0-experimental-21c89c9f-20260901 | 8 days ago | 13 KB | MIT |
| 19.3.0-canary-21c89c9f-20260901 | 8 days ago | 13 KB | MIT |
| 0.0.0-experimental-ff7445e6-20260831 | 9 days ago | 13 KB | MIT |
| 19.3.0-canary-ff7445e6-20260831 | 9 days ago | 13 KB | MIT |
| 19.3.0-canary-2dc7da79-20260828 | 12 days ago | 13 KB | MIT |
Overview
react-is is an npm package that brand checking of React Elements. It has 2 known dependents in the graph. The latest version is 19.2.8, 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 focused 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
- 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.
Keywords
Frequently asked questions
Should I use react-is?
Yes — react-is scores well across adoption, maintenance, weight, supply chain, and licensing. No download data reported for this package yet. Last published 50 days ago. 50 releases in the last 2 years.
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?
npm does not publish download counts. Within PackageGraph's crawl, 2 known packages depend on react-is.
Is react-is still maintained?
The most recent release of react-is (v19.2.8) was published 1 month ago.
Does react-is run install scripts?
No. react-is does not define preinstall, install, or postinstall scripts, so installing it does not execute publisher-supplied code.