Evidence tier Source Confirmed · 8 captures on record
What the publisher says
As described on Microsoft Marketplace.
ReactJS is an open-source JavaScript library used for building fast and interactive user interfaces, especially for single-page applications. It allows developers to create reusable UI components and efficiently update the view when data changes using a virtual DOM. React simplifies the development process by using a declarative approach, making code more predictable and easier to debug.
Features of ReactJS:
Show the rest of the publisher’s description (13 more lines)
- Component-based architecture for reusable UI elements.
- Uses virtual DOM for better performance and faster updates.
- Declarative syntax makes code easier to understand and maintain.
- Supports one-way data binding for better control over applications.
- Strong community support and rich ecosystem.
- Can be used for web and mobile app development (with React Native).
ReactJS Usage Instructions:
$ sudo su
$ cd /opt
$ npx create-react-app my-react-app
$ cd my-react-app
$ npm start
Disclaimer: ReactJS is an open-source JavaScript library maintained by Meta and the developer community. It is released under the MIT License. The software is provided "as is" without any warranties. Users are responsible for its usage in their development workflows.
Agent build and provenance
See the full provenance
The layer-by-layer build, the evidence behind each claim, the risk basis and the cross-marketplace links are open to any account. Some rows are disclosed, some the source leaves Unknown; a free account shows you which.
Compliance
- FedRAMPConfirmedNot listed90%, registry-checkedNo FedRAMP Marketplace entry matched this vendor's domain, checked 2026-08-27registry recordas observed 2026-08-27
Confirmed means matched to a public authoritative registry. Claimed means the vendor or its listing states it, not yet cross-checked. A framework not shown was not found in any source we hold, which is not evidence against it. Not listed means a scoped registry check found no match for this vendor's domain: a No is a scoped registry check, not a compliance judgment. Confidence bands: 95% domain-verified, 90% registry-checked, 80% self-attested, 70% weak signal. Self-attested items marked “vendor's site” are gathered from the vendor's own website and are not verified by us.
Vendor
External enrichment · as of 2026-08-29
Sources
Publisher resources
1 linkLinked repositories
Unknown means this listing does not publish a repository. It is not a statement that the code is closed, and a linked repository is not a claim that the publisher wrote it: the registry computes that relationship privately and does not publish it.
Evidence risk is the share of the build you cannot see before you deploy, not a security rating. Sign in to see the layer-by-layer basis for this band.

