Open Source Postman Alternatives for Mac

There are many alternatives to Postman for Mac if you are looking for a replacement. The best open source Mac alternative is Insomnia REST Client. If that doesn't suit you, our users have ranked more than 100 alternatives to Postman and many of them are open source and available for Mac so hopefully you can find a suitable replacement. Other interesting open source Mac alternatives to Postman are HTTPie for Terminal, Bruno, soapUI and Advanced REST Client.

filter to find the best alternatives

Postman alternatives are mainly API Clients, but if you're looking for HTTP Clients or Web Testing Tools you can filter on that. Other popular filters include Open Source, Linux, Web Development, Online, Mac, Self-Hosted and Android. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Postman.
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Alternatives list

  1. Lama2 icon
     2 likes

    Lama2 defines the human-friendly l2 syntax and CLI for describing and executing APIs. Store your APIs in plain-text files. Collaborate with team using version control (say, git). Run Lama2 directly from VSCode extension. Think of Lama2 as Markdown for APIs.

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
     
  2. API Dash icon
     Like

    API Dash is a beautiful open-source cross-platform API Client built using Flutter which can help you easily create & customize your API requests, visually inspect responses and generate API integration code. A lightweight alternative to postman/insomnia.

    Cost / License

    Application types

    Platforms

    • Windows
    • Mac
    • Linux
    • Debian
    • Ubuntu
    • Linux Mint
    • Fedora
    • Red Hat Enterprise Linux
    • CentOS
     
  3. Main goal of this VSCode extension is storing all HTTP request & response data automatically as files in a VSCode workspace.

    Cost / License

    • Free
    • Open Source (MIT)

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
     
  4. API test automation tool that has GUI, supports HTTP stubs (mock services), data driven testing, and API types beyond HTTP, such as relational database, JMS, FTP(s), AMQP, MQTT, etc.

    Cost / License

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
     
  5.  2 likes

    If you like the interface of HTTPie but miss the features of curl, curlie is what you are searching for. Curlie is a frontend to curl that adds the ease of use of httpie, without compromising on features and performance.

    Cost / License

    • Free
    • Open Source (MIT)

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
     
  6. Chapar icon
     Like

    Upcoming API testing tool in beta, built in GoLang, supporting HTTP/gRPC, workspaces, environments, request management, and various content types. Features include dark mode, local data storage, Postman import, environment variable setting, and request chaining.

    Cost / License

    Application types

    Platforms

    • Mac
    • Linux
     
  7. Loadmill icon
     5 likes

    Loadmill helps developers easily create the tests required for continuous delivery by analyzing user behavior. Loadmill automates backend regression testing by replaying real user behavior. Through the use of smart recordings, the platform can create and replay thousands of...

    Cost / License

    • Paid
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Software as a Service (SaaS)
     
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    3
    Loadmill vs Postman Comments
    Guest
    Positive
    1

    It detects parameters in network recordings automatically

    Review by a new / low-activity user.
    rivi
    Positive
    1

    It can generate API test automatically from your traffic so you get fully regression coverage with minimum effort

    Review by a new / low-activity user.
    ayalakr
    Positive
    1

    I used it to transform HAR and GOR files into test suites very easily

    Review by a new / low-activity user.
    • Loadmill is Paid and Open SourcePostman is Freemium and Proprietary
  8. Hello HTTP icon
     1 like

    A cross-platform HTTP client desktop application for testing HTTP and REST APIs, WebSocket, GraphQL (including subscriptions) and gRPC endpoints.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
     
  9. ArdorQuery icon
     1 like

    ArdorQuery is a cross-platform tool for performing any HTTP(S) endpoints like REST API, HTML, Images, GraphQL, OData etc.

    Cost / License

    Application types

    Platforms

    • Mac
    • Linux
    • Flathub
     
  10. This is a tool to manually explore and test HTTP REST webservices. Runs queries from a plain-text query sheet, displays results as a pretty-printed XML, JSON and even images.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • GNU Emacs
     
  11. Ain icon
     Like

    Ain is a command-line HTTP API client. It's an alternative to postman, paw or insomnia. It enables scripting of input and further processing of output. It targets command-line users who work with API:s using a simple file format.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mac
    • Windows
    • Linux
    • Raspberry Pi
     
  12. rest-client icon
     1 like

    Wisdom rest-client is a tool supports automated testing REST API, producing exquisite report, and generating exquisite REST API documentation based on historical cases.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
     
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