Software Alternatives, Accelerators & Startups

Insomnia REST VS TestComplete

Compare Insomnia REST VS TestComplete and see what are their differences

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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.

TestComplete logo TestComplete

TestComplete Desktop, Web, and Mobile helps you create repeatable and accurate automated tests across multiple devices, platforms, and environments easily and quickly.
  • Insomnia REST Landing page
    Landing page //
    2023-10-05
  • TestComplete Landing page
    Landing page //
    2023-09-20

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.

TestComplete features and specs

  • Ease of Use
    TestComplete has a user-friendly interface that allows both technical and non-technical users to create automated tests with ease.
  • Scriptless Testing
    The tool supports keyword-driven testing, enabling users to create automated tests without any scripting knowledge.
  • Multi-Technology Support
    TestComplete supports testing for a wide range of technologies, including desktop, web, and mobile applications, making it a versatile tool.
  • Integration Capabilities
    It easily integrates with other SmartBear tools and third-party tools like JIRA, Jenkins, and Azure DevOps, facilitating a smooth CI/CD process.
  • Parallel Test Execution
    TestComplete allows for parallel test executions, which can significantly reduce the total testing time and speed up the development cycle.
  • Object Recognition
    The tool includes advanced object recognition methods that ensure automated tests are stable and resilient to changes in the application's UI.
  • Comprehensive Reporting
    TestComplete provides detailed test reports and logs, helping teams quickly diagnose and address any issues that arise during testing.

Possible disadvantages of TestComplete

  • Cost
    TestComplete is relatively expensive compared to other automated testing tools, which can be a significant investment for small and medium-sized businesses.
  • Resource Intensive
    The tool can be resource-intensive, requiring significant system resources for smooth operation, which might affect performance on less powerful machines.
  • Learning Curve
    Despite its user-friendly interface, there can be a steep learning curve for users who want to utilize its more advanced features.
  • Limited Community Support
    Compared to some other popular testing tools, TestComplete has a smaller user community, which can make it challenging to find solutions to uncommon issues.
  • Complex Licensing Model
    The licensing model can be complex, potentially confusing for new users who need to understand different types of licenses and their limitations.

Analysis of Insomnia REST

Overall verdict

  • Insomnia REST is an excellent choice for developers who need a robust and intuitive tool for API development and testing. Its comprehensive features and ease of use make it a competitive option alongside other popular API clients.

Why this product is good

  • Insomnia REST is widely regarded as a powerful tool due to its user-friendly interface, extensive plugin ecosystem, and support for multiple authentication protocols. It allows users to easily build, debug, and test RESTful APIs with features like environment variables, code generation, and response validation. Moreover, its compatibility with GraphQL and gRPC makes it versatile for modern development needs.

Recommended for

  • API Developers
  • Software Testers
  • Backend Engineers
  • Technical Leads
  • Anyone involved in RESTful API development and testing

Analysis of TestComplete

Overall verdict

  • Overall, TestComplete is considered a robust and comprehensive tool for automated testing. Its user-friendly interface and powerful testing capabilities make it a worthwhile investment for many organizations aiming to improve their software testing processes.

Why this product is good

  • TestComplete is a popular automation tool for UI testing, known for its ease of use, broad range of supported applications, and testing capabilities. It supports multiple scripting languages, such as JavaScript, Python, and VBScript, allowing testers with varying coding skills to utilize it effectively. Its record-and-playback feature makes creating tests straightforward, and its extensive integration options with other tools enhance its functionality and flexibility. Additionally, TestComplete automates functional, regression, and performance testing, which contributes to higher-quality software releases.

Recommended for

    TestComplete is recommended for organizations seeking a reliable UI testing tool that supports both desktop, mobile, and web applications. It is especially beneficial for testers who appreciate the flexibility of choosing from multiple scripting languages or those who prefer a record-and-playback approach. It suits both small teams looking for straightforward solutions and larger enterprises that require more advanced integration and automation capabilities.

Insomnia REST videos

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

More videos:

  • Tutorial - Insomnia REST Client Tutorial

TestComplete videos

TestComplete: The Easiest-to-Use Automated UI Testing Tool

Category Popularity

0-100% (relative to Insomnia REST and TestComplete)
API Tools
100 100%
0% 0
Automated Testing
0 0%
100% 100
Developer Tools
100 100%
0% 0
Website Testing
0 0%
100% 100

User comments

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Reviews

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

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

TestComplete Reviews

Best Automation Testing Tools (Free and Paid) | July 2022
TestComplete is a commercial testing tool and it allows you to create reusable tests for all web applications including modern JavaScript frameworks like React and Angular on 2050+ browser and platform configurations.
Top 10 Best Selenium Alternatives You Should Try
TestComplete is an influential and tough automated tool for testing mobile, desktop and web applications. It can be integrated with open source tools like Selenium, Jenkins etc. TestComplete supports few name mapping functions and GUI features that are not available with Selenium.
Top 6 Complete Automation Testing Solutions
TestComplete is an automation testing tool developed by SmartBear and used for web, mobile and desktop applications. The main feature of this tool is the object recognition engine that can detect dynamic elements from a UI.
Source: dzone.com
Top 20 Best Automation Testing Tools in 2019 (Comprehensive List)
TestComplete is the top automation testing tool for desktop, mobile and web applications. With TestComplete, you can build and run functional UI tests via robust record & replay capabilities or by scripting in your favorite languages, including Python, JavaScript, VBScript and more.
Top 20 Best Automation Testing Tools in 2018 (Comprehensive List)
TestComplete is the top automation testing tool for desktop, mobile and web applications. With TestComplete, you can build and run functional UI tests via robust record & replay capabilities or by scripting in your favorite languages, including Python, JavaScript, VBScript and more.

Social recommendations and mentions

Based on our record, Insomnia REST seems to be a lot more popular than TestComplete. While we know about 129 links to Insomnia REST, we've tracked only 2 mentions of TestComplete. 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.

Insomnia REST mentions (129)

View more

TestComplete mentions (2)

  • How to create step recording program like testcomplete?
    I've been working with Selenium and Python for the past two years and I can say I've good enough experience with them about now. One thing that has always bothered me is how much manual work I have to do in order to implement the steps I need my program to make. So I've been thinking of making my own "step recorder", something in the vein of TestComplete. I've been using PyAutoGui too and the thought of crossing... Source: over 2 years ago
  • Looking for OS automation software
    SmartBear TestComplete and Ranorex both offer 30-day free trials to try them out. Their suites make it easy to automate desktop apps, but licensing is expensive. Part of what you pay for is being able to write "codeless" tests by recording your mouse and keyboard activity and validating whatever you want on the app. Source: over 3 years ago

What are some alternatives?

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

Postman - The Collaboration Platform for API Development

Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.

Hoppscotch - Open source API development ecosystem

Ranorex Studio - Accelerate testing with Ranorex Studio, the all-in-one tool for test automation. For desktop, web, or mobile app testing, with easy codeless automation tools, a full IDE, robust object recognition, flexible reporting and built-in Selenium WebDriver.

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

Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.