Hitman.app is described as 'Hitman is built to Collaborate, Develop, & Publish Better APIs – FASTER' and is an app in the Development category. There are more than 50 alternatives to Hitman.app for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and SaaS. The best alternative is Postman, which is free. Other great apps like Hitman.app are Insomnia REST Client (Freemium, Open Source), HTTPie (Free, Open Source), Paw (Paid) and soapUI (Free, Open Source).
Postman is a tool that facilitates the development and use of APIs. Postman provides all the functionality needed to create or simulate API specifications and use the Postman Collection Runner to create tests.
Easily craft your HTTP requests, try them, archive them. Setup HTTP Headers, URL parameters, form-encoded POST key-values or text. Get easy-to-read responses with well formatted headers and body. Sync your projects with your team through Paw for Teams.