Download and Install Insomnia on Windows/MacOS

Insomnia is a widely popular API management tool among developers. Here we will walk through the process of downloading and installing it on your operating system, like Windows/Linux/MacOS for free.

David Demir

David Demir

9 February 2026

Download and Install Insomnia on Windows/MacOS

Insomnia is a widely popular API management tool among developers. Wondering how to download and install Insomnia on your devices? This article covers the basics of Insomnia and walks you through the process of downloading and installing it on your operating system, like Windows/Linux/MacOS for free.

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Apidog is a comprehensive API management tool as an Insomnia alternative. It offers features like API design, debugging, and testing. Best of all, it's forever free for individual users. Click below to get started! 👇👇👇
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What is Insomnia?

Insomnia API Tool is a leading Open Source API Development Platform for HTTP, REST, GraphQL, gRPC, SOAP, and WebSockets. Insomnia provides tools for testing and managing APIs.

Insomnia is an open-source, GUI-based API testing, and debugging tool. A major feature is that you can send API requests and check responses without any code. Specifically, you can easily create, send, and manage the history of HTTP requests. Settings such as CORS and authentication can be done using intuitive GUI operations.

Insomnia

Another strength is that it has requested import/export functions and environment and workspace management functions. The response body automatically recognizes the format and displays it in a format, makes it highly readable.

Download Insomnia for Free

Insomnia, a powerful tool for API debugging and testing, can be easily downloaded for free from its official website or GitHub repository. Here's how:

  1. Official Website Download:

2. GitHub Repository:


Install Insomnia on Windows/Linux/MacOS

Once you have downloaded the Insomnia installation file, follow these steps to install it:

  1. Locate the Downloaded File:

2. Launch the Installer:

3. Follow Installation Instructions:

brew install --cask insomnia
sudo snap install insomnia

How to send GET API in Insomnia API?

After installing the Insomnia API tool, now we will show you how to use it. Testing APIs with Insomnia involves creating requests, configuring parameters, and examining responses. Here is a simple guide for beginners.

  1. Open Insomnia and click on the "+" button to create a GET Request.

2. Configure headers, query parameters, and request body as needed for your API.

3. Click the "Send" button to execute the API request.

Apidog: Insomnia Alternative

While Insomnia is a great Insomnia alternative tool for API debugging and testing. For a more comprehensive solution, we recommend Apidog, an advanced API management tool. Apidog offers extensive capabilities, including API design, specification generation, development, debugging, and testing—all in one convenient platform.

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Additionally, its collaboration features, such as real-time sharing, enhance team productivity, making Apidog a superior choice for efficient API development.

Summary

In conclusion, this article demonstrated how to download and install Insomnia, an API testing tool. Regardless of your device, you'll find the appropriate version.

Insomnia offers an intuitive interface and robust features for designing, debugging, and testing APIs, as well as facilitating real-time collaboration for teams. For a more comprehensive solution, Apidog covers all API-related tasks and provides extensive Japanese documentation and support.

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