OpenReq is described as 'Build, test, and debug your APIs with a self-hosted tool that does what you actually need. Scripts, environments, OAuth 2.0, code generation, and an AI wizard that builds collections from your docs — no account required, no limits' and is an app in the development category. There are seven alternatives to OpenReq for a variety of platforms, including Mac, Windows, Linux, Flathub and Web-based apps. The best OpenReq alternative is Bruno, which is both free and Open Source. Other great apps like OpenReq are Postman, Insomnia REST Client, Hoppscotch and Insomnium.