Software Alternatives, Accelerators & Startups

Mock API Generator VS Insomnia REST

Compare Mock API Generator VS Insomnia REST and see what are their differences

Mock API Generator logo Mock API Generator

Generate custom data & API to build apps in less than 30s

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.
  • Mock API Generator Landing page
    Landing page //
    2023-10-14
  • Insomnia REST Landing page
    Landing page //
    2023-10-05

Mock API Generator features and specs

  • Ease of Use
    The mock API generator from Retool provides a user-friendly interface that simplifies the process of creating mock APIs, making it accessible for developers with varying levels of expertise.
  • Speed
    Allows for rapid prototyping and testing by quickly generating mock APIs without the need for backend setup, significantly speeding up the development lifecycle.
  • Integration
    Retool's tool seamlessly integrates with other services and tools within the Retool ecosystem, enhancing its utility in a suite of software solutions.
  • Customization
    Offers flexible options to customize the API responses, enabling developers to tailor mock data according to specific testing scenarios.

Possible disadvantages of Mock API Generator

  • Limited Features
    Compared to full-fledged API management tools, the mock API generator may offer fewer features and configurations, potentially limiting its applicability in complex development environments.
  • Dependency
    Reliance on a third-party tool for API mocking may create dependencies that could affect project timelines if there are changes in the tool's availability or functionality.
  • Scalability
    While suitable for small to medium-sized projects, the tool might not be as scalable for larger projects with extensive API requirements.
  • Learning Curve
    Despite its ease of use, new users may still face some initial learning curve, especially if unfamiliar with Retool’s overall product suite.

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.

Mock API Generator videos

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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 Mock API Generator and Insomnia REST)
APIs
13 13%
87% 87
API Tools
0 0%
100% 100
Web App
100 100%
0% 0
Developer Tools
5 5%
95% 95

User comments

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Reviews

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

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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 a lot more popular than Mock API Generator. While we know about 129 links to Insomnia REST, we've tracked only 3 mentions of Mock API Generator. 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.

Mock API Generator mentions (3)

  • best place to buy ready made APIs or custom ones
    This is an interesting niche tool that may help to quickly spin up an API with minimal cost/investment: https://retool.com/api-generator/ ... I'm also developing a similar platform called https://postget.dev but this app is in alpha so it's mostly suitable for niche/experimental projects. Something else that may be worth looking into is google's Apigee product or something like https://airtable.com which allows... Source: about 2 years ago
  • Retool raises $45M at a $3.2B valuation to improve internal tools
    Ah, we still have a way of generating mock APIs: https://retool.com/api-generator. You can upload a CSV (we'll parse the columns and guess types for each one), and then generate mock data and put it into an AIP for you: https://retool.com/utilities/generate-api-from-csv. In the future, we'd love to make it more robust; we're currently working on a database-y product (think Airtable, but backed by postgres). It... - Source: Hacker News / almost 3 years ago
  • Retool Is Reselling Our API Without Permission
    Keep following up! However, your email doesn't seem to be very clear about the situation — it just looks like an offer to sell. Also I noticed that the tool[0] that is referenced in the blog post no longer contains the "Avatar" field. 0. https://retool.com/api-generator. - Source: Hacker News / almost 4 years ago

Insomnia REST mentions (129)

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What are some alternatives?

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

endpointy.io - The fastest way to setup you mock endpoint. Your mock API up in just a few clicks, auto generated the RESTfull endpoints you need.

Postman - The Collaboration Platform for API Development

Mockoon - Mockoon is the easiest and quickest way to design and run mock REST APIs. No remote deployment, no account required, free and open-source.

Hoppscotch - Open source API development ecosystem

API List - A collective list of APIs. Build something.

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