4 Free and Open-source Testing Apps for macOS (Intel and Apple Silicon)

1- Curlie

The power of curl, the ease of use of httpie.

Curlie is a lightweight command-line API testing tool, written in Go language, and uses curl in the backend. It is heavily inspired by httpie. You can install it on macOS using Homebrew, or Mac ports. You can also install it using Go package manager.

If you like the interface of HTTPie but miss the features of curl, curlie is what you are searching for. Curlie is a frontend to curl that adds the ease of use of httpie, without compromising on features and performance. All curl options are exposed with syntax sugar and output formatting inspired from httpie.

Read about Curlie 's features, license, platforms, and more.

2- HTTPie

HTTPie for Terminal; human-friendly CLI HTTP client for the API era

HTTPie (pronounced aitch-tee-tee-pie) is a command-line HTTP client. Its goal is to make CLI interaction with web services as human-friendly as possible. HTTPie is designed for testing, debugging, and generally interacting with APIs & HTTP servers. The http & https commands allow for creating and sending arbitrary HTTP requests. They use simple and natural syntax and provide formatted and colorized output.

Read about HTTPie 's features, license, platforms, and more.

3- Zerocode

Automated API, Kafka and Micro-services testing has never been so easy

Zerocode is a community-developed, free, open source, microservices API automation and load testing framework built using JUnit core runners for Http REST, SOAP, Security, Database, Kafka and much more. Zerocode Open Source enables you to create, change, orchestrate and maintain your automated test cases declaratively with absolute ease.

Zerocode makes it easy to create and maintain automated tests with absolute minimum overhead for REST,SOAP, Kafka Real Time Data Streams and much more. It has the best of best ideas and practices from the community to keep it super simple, and the adoption is rapidly growing among the developer/tester community.

Read about Zerocode 's features, license, platforms, and more.

4- Insomnia: API Testing and Designing App

Design, Test, and Develop REST APIs

Insomnia is a free open-source API designing, debugging, and testing app for multiple platforms including macOS.

It has a vast ecosystem that includes 350+ plugins, supports multiple protocols, and works with API file collections.

Read about Insomnia: API Testing and Designing App 's features, license, platforms, and more.