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Insomnia REST VS cURL

Compare Insomnia REST VS cURL 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.

cURL logo cURL

cURL is a computer software project providing a library and command-line tool for transferring data...
  • Insomnia REST Landing page
    Landing page //
    2023-10-05
  • cURL Landing page
    Landing page //
    2021-12-13

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.

cURL features and specs

  • Versatility
    cURL supports a wide range of protocols including HTTP, HTTPS, FTP, and many more, making it a highly versatile tool for developers.
  • Cross-Platform
    cURL can be used on various operating systems including Windows, macOS, and Linux, providing consistency across different environments.
  • Command-Line Usage
    It can be easily used from the command line, enabling quick and powerful interactions with web services without the need for a graphical interface.
  • Automation
    cURL can be incorporated into scripts for automation, making it essential for repetitive tasks such as automated testing or continuous integration.
  • Support for Multiple Data Formats
    It can work with multiple data formats such as JSON, XML, and form-urlencoded, making it flexible for interacting with various APIs.
  • Open Source
    Being an open-source tool, cURL is free to use and has a large community that contributes to its continuous improvement and support.

Possible disadvantages of cURL

  • Steep Learning Curve
    For beginners, the variety of options and parameters available can be overwhelming, requiring time and effort to become proficient.
  • Limited Error Messages
    cURL sometimes provides minimal error messages, which can make debugging issues more complicated, especially for new users.
  • Security Concerns
    Improper handling of SSL certificates or sensitive data could lead to security vulnerabilities, requiring users to be cautious and knowledgeable.
  • Not User-Friendly
    As a command-line tool, it lacks a graphical user interface, which can make it less accessible for users who are not comfortable with terminal commands.
  • Manual Configuration
    Requires manual configuration for advanced options, which can be time-consuming and cumbersome for complex tasks.

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 cURL

Overall verdict

  • Yes, cURL (curl.se) is considered good. It is a reliable and powerful tool widely used in the industry for handling various network-related tasks.

Why this product is good

  • cURL is highly regarded for its ease of use, cross-platform compatibility, and ability to support a wide range of protocols including HTTP, HTTPS, FTP, and more. It is often used for transferring data with URLs, making it versatile for developers and system administrators.

Recommended for

  • Developers needing to test and debug APIs
  • System administrators managing data transfers
  • Users automating web interactions
  • Anyone needing a flexible tool for command-line data transfers

Insomnia REST videos

+ Add

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

More videos:

  • Tutorial - Insomnia REST Client Tutorial

cURL videos

+ Add

BOUNCE CURL REVIEW | Curl Review Series #2

More videos:

  • Review - CURLS BLUEBERRY BLISS REVIEW | Curl Review Series #1
  • Review - Curls Triple Threat Review // Frizz Free Curly Hair
  • Tutorial - How to use CURL

Category Popularity

0-100% (relative to Insomnia REST and cURL)

Insomnia REST

cURL

API Tools
69 69%
API Tools
31% 31
Developer Tools
77 77%
Developer Tools
23% 23
APIs
72 72%
APIs
28% 28
API
100 100%
API
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 Insomnia REST and cURL

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.
Source: www.hypertest.co
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.
Source: www.blazemeter.com
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.
Source: www.bestproxyreviews.com
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

cURL Reviews

Top 20 Open Source & Cloud Free Postman Alternatives (2024 Updated)
cURL is a widely used command-line tool for transferring data with URLs. It supports a multitude of protocols, making it a versatile choice for API testing.
Source: medium.com
Top 10 HTTP Client and Web Debugging Proxy Tools (2023)
The uniqueness of cURL above others is that it supports different types of protocols, like HTTP, HTTPS, FTP, SFTP, POP3 SCP, and more. As a developer, you have to understand how cURL works.
Source: www.bestproxyreviews.com

Social recommendations and mentions

Insomnia REST might be a bit more popular than cURL. We know about 129 links to it since March 2021 and only 123 links to cURL. 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

cURL mentions (123)

  • DeadLock - 50% Complete
    Today I had much more time to focus on the project and I did that. Yesterday, I had just got to know about the cURL library that is used to send the HTTP requests in C++. But today, I imported the library, went through the documentation and with the help of some chatbots, was able to build functions to download and extract packages from Pypi. Using the Thunder Client, I got to know that I am receiving JSON from... - Source: dev.to / 9 days ago
  • curl, it's got u
    I like curl it's available as a command line tool and is pretty ubiquitous across platforms. - Source: dev.to / about 1 month ago
  • Most Effective Approaches for Debugging Applications
    Complex applications, with their interwoven layers of front-end, back-end, and database logic, often obscure bugs. Simplifying the problem by isolating components—such as a React component, a REST API endpoint, or a PostgreSQL query—helps developers focus on the failure point. Spencer Romenco, Chief Growth Strategist at Growth Spurt, shares a case study: “Simplifying and isolating the problem has always been the... - Source: dev.to / about 2 months ago
  • The Inflation of "Security Researchers" and Its Consequences for Open Source
    A well-documented case that illustrates this problem is CVE-2020-19909, which was recently reassigned as a "critical" vulnerability in Curl — despite being a decades-old, non-exploitable bug. This case exposes the systemic flaws in how CVEs are assigned and scored [Daniel Stenberg’s blog][Hacker News discussion]. - Source: dev.to / 2 months ago
  • Python for Beginners: Chapter 2 – Building Your First REST API with Flask
    For POST, PUT, and DELETE, you'll need a tool like Postman or curl. - Source: dev.to / 3 months ago
View more

What are some alternatives?

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

Postman - The Collaboration Platform for API Development

Hoppscotch - Open source API development ecosystem

HTTPie - CLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more.

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

soapUI - SoapUI Pro is one of the most prominent API testing platforms around, allowing developers to quickly prototype the functions of their apps and get them to market with little hassle.

Thunder Client - Rest API client for VS Code, lightweight Postman alternative

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