Software Alternatives, Accelerators & Startups

API Fortress VS Insomnia REST

Compare API Fortress VS Insomnia REST and see what are their differences

API Fortress logo API Fortress

API performance, accuracy, and uptime testing. Without code.

Insomnia REST logo Insomnia REST

Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a dev‑friendly UI, built-in automation, and an extensible plugin ecosystem.
  • API Fortress Landing page
    Landing page //
    2023-10-21
  • Insomnia REST Landing page
    Landing page //
    2023-10-05

API Fortress features and specs

  • Comprehensive Testing
    API Fortress offers a complete suite of testing options, including functional, performance, and load testing, which ensures robust API validation and reliability.
  • User-Friendly Interface
    The platform provides an intuitive and easy-to-navigate interface, making test design and management accessible even for users with less technical expertise.
  • Automation Capabilities
    Supports extensive automation, allowing for continuous integration and continuous deployment (CI/CD), which helps streamline the development and testing process.
  • Collaboration Features
    Offers tools for team collaboration, enabling multiple stakeholders to participate in the testing process, enhancing communication and efficiency.
  • Cloud and On-Premises Support
    Provides flexibility with both cloud-based and on-premises deployments, catering to different organizational needs and preferences.

Possible disadvantages of API Fortress

  • Pricing
    API Fortress can be relatively expensive, which might not be suitable for smaller businesses or teams with limited budgets.
  • Complex Test Cases
    While versatile, setting up complex test cases might require a steeper learning curve, potentially demanding more time and technical expertise.
  • Limited Integrations
    The platform may have fewer integrations with certain third-party tools compared to its competitors, which could be a limitation for some users.
  • Learning Curve
    New users might face a learning curve while getting accustomed to all features and functionalities, which could slow down initial adoption.

Insomnia REST features and specs

  • User-Friendly Interface
    Insomnia REST features a clean and intuitive user interface that makes it easy to create, send, and manage API requests without a steep learning curve.
  • Support for Multiple Protocols
    In addition to REST, Insomnia supports GraphQL and gRPC, making it versatile for developers working with different API protocols.
  • Environment Management
    Insomnia allows you to create and manage multiple environments, making it easier to switch between staging, development, and production settings.
  • Custom Plugins and Themes
    Insomnia supports custom plugins and themes, allowing users to extend its functionality and personalize the interface to suit their workflow.
  • Collaboration Features
    With Insomnia Teams, users can collaborate and share API requests, environments, and other resources, enhancing team productivity.
  • Cross-Platform Availability
    Insomnia is available on multiple platforms, including Windows, macOS, and Linux, providing flexibility for users on different operating systems.

Possible disadvantages of Insomnia REST

  • Resource Heavy
    Some users have reported that Insomnia can be resource-intensive, leading to potential performance issues on lower-end machines.
  • Limited Free Features
    While Insomnia offers a free tier, some of the more advanced features, such as team collaboration and sync capabilities, require a paid subscription.
  • Steeper Learning Curve for Advanced Features
    Although the basic functionalities are user-friendly, mastering the more advanced features might require a steeper learning curve.
  • Dependency on Electron
    Since Insomnia is built on Electron, it might consume more memory and disk space compared to native applications.
  • Complex Plugin System
    While the plugin system is powerful, it can be complex and challenging for users who are not familiar with JavaScript and Node.js.

API Fortress videos

API Fortress - Full Walkthrough (5mins)

More videos:

  • Review - API Fortress - Test Creation Compared to Postman
  • Review - API Fortress - How We Compare to JMeter Testers

Insomnia REST videos

3 Reasons to use Insomnia REST Client in your Exploratory API Testing

More videos:

  • Tutorial - Insomnia REST Client Tutorial

Category Popularity

0-100% (relative to API Fortress and Insomnia REST)
API Tools
14 14%
86% 86
Developer Tools
15 15%
85% 85
APIs
20 20%
80% 80
Development
100 100%
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare API Fortress and Insomnia REST

API Fortress Reviews

We have no reviews of API Fortress yet.
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Insomnia REST Reviews

Top 20 Open Source & Cloud Free Postman Alternatives (2024 Updated)
Product Introduction: Insomnia is a powerful open-source API client designed for simplicity and efficiency and works great as a postman alternative. It supports REST, GraphQL, and gRPC, making it versatile for various API types.
Source: medium.com
Best Postman Alternatives To Consider in 2025
It is a free, open-source platform that boasts a user-friendly interface and robust features like environment and collection management, code snippets, and test automation. Compared to Postman, Insomnia offers a lighter footprint and a more customizable workspace.
Postman Alternatives for API Testing and Monitoring
Insomnia is a user-friendly tool for API development and testing. Insomnia allows creating and sending HTTP and REST requests, like GET, POST, PUT, DELETE, and more. Users can view API responses, including status codes, headers, and body. This enables understanding how the application handles different response scenarios, for efficient debugging.
Top 10 HTTP Client and Web Debugging Proxy Tools (2023)
Insomnia REST is the best alternative for Postman. It has more than 350 open-source plugins, plus GraphQL built-in with multiple protocol support. Since GraphQL is an added value, you can fully automate the entire lifecycle of APIs, build and debug them efficiently and with ease.
15 Best Postman Alternatives for Automated API Testing [2022 Updated]
Insomnia by Kong enables you to deliver high-quality APIs through collaboration. This postman alternative also includes testing suites, which allow you to create functional tests and centralize APIs. With this platform’s streamlined API client, sending GraphQL, REST, and SOAP requests are simple. Defining variables such as authentication credentials allows you to manage...
Source: testsigma.com

Social recommendations and mentions

Based on our record, Insomnia REST seems to be more popular. It has been mentiond 129 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

API Fortress mentions (0)

We have not tracked any mentions of API Fortress yet. Tracking of API Fortress recommendations started around Mar 2021.

Insomnia REST mentions (129)

View more

What are some alternatives?

When comparing API Fortress and Insomnia REST, you can also consider the following products

MockServer - Easy mocking of any system you integrate with via HTTP or HTTPS.

Postman - The Collaboration Platform for API Development

HttpMaster - HttpMaster is a professional software tool for testing and debugging HTTP applications, primarily aimed at REST API applications and web services.

Hoppscotch - Open source API development ecosystem

Request inspector - Debug web hooks, http clients

RapidAPI for Mac - Paw is a REST client for Mac.