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Best API Testing Tools for Linux in 2026

9 of the 10 API testing tools ranked on listme.name match: they officially support Linux. The order uses the same scores as the full ranking.

9 products ranked Updated October 2026 How we rank Share

The ranking

  1. Postman

    A hosted platform with shared workspaces, monitoring and a free plan. Its client is proprietary, and the Team plan is priced per user, so open-source clients cost less for solo work.

    Best for Hosted team workspaces and monitoring

    WindowsmacOSLinuxWebCommand lineFree plan, paid upgrades

    91.5of 100
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  2. Bruno

    Free and MIT-licensed, with collections stored as Git-friendly files and no cloud sync needed. Team features need Pro at $6 per user a month, and it has fewer hosted collaboration features than Postman.

    Best for Git-based API collections

    WindowsmacOSLinuxCommand lineFree plan, paid upgradesOpen source

    90.0of 100
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  3. Insomnia

    A Kong-maintained client with a free local Scratch Pad, Git Sync for small teams and Apache-2.0 source. Team pricing is per user, with Pro at $12 and Enterprise at $45 per user a month.

    Best for Commercial client with Git Sync

    macOSWindowsLinuxFree plan, paid upgradesOpen source

    88.0of 100
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  4. Hoppscotch

    MIT-licensed, with web, desktop and CLI versions and self-hosting on your own servers. Self-hosting adds server upkeep, while the web and desktop apps need no setup.

    Best for Self-hosted open-source API testing

    WebWindowsmacOSLinuxCommand lineSelf-hostedFree and open sourceOpen source

    87.0of 100
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  5. Yaak

    A local-first desktop client that stores requests as YAML files for Git. It is free for personal use and MIT-licensed, while work use needs a paid license, and its ecosystem is smaller than Postman's.

    Best for Local-first desktop client with Git files

    LinuxmacOSWindowsCommand lineFree plan, paid upgradesOpen source

    85.0of 100
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  6. Kreya

    Desktop client for gRPC, REST, GraphQL and WebSockets, with a free forever plan for core features and paid Pro and Enterprise tiers for scripting, snapshot tests and collections. It is the strongest option here for gRPC work.

    Best for gRPC and mixed API work in a desktop client

    macOSWindowsLinuxFree plan, paid upgrades

    84.5of 100
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  7. Thunder Client

    REST client that runs inside VS Code and JetBrains, with a free version at $0 per user and a Starter plan at $3 per user a month. It is the lightest option here for developers who stay in the editor, and it is tied to that editor.

    Best for Quick API tests inside VS Code

    WindowsmacOSLinuxFree plan, paid upgrades

    82.0of 100
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  8. Hurl

    Apache-2.0 command-line tool that runs HTTP requests and assertions written as plain text, with installs for macOS, Windows and Linux. It has no graphical interface, so it suits scripted and CI tests more than interactive use.

    Best for Scripted and CI tests written as plain text

    WindowsmacOSLinuxCommand lineFree and open sourceOpen source

    81.5of 100
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  9. HTTPie

    An open-source BSD-3-Clause terminal client with readable output, plus a desktop app that is still in public beta. It suits people who work mainly in the terminal.

    Best for Terminal-first HTTP testing

    Command lineWebWindowsmacOSLinuxFree and open sourceOpen source

    79.5of 100
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At a glance

ProductScorePricePlatformsCollections stored
Postman91.5Free plan, paid upgradesWindowsmacOSLinuxWebCommand linePostman cloud workspaces
Bruno90.0Free plan, paid upgradesWindowsmacOSLinuxCommand lineGit-friendly files on disk
Insomnia88.0Free plan, paid upgradesmacOSWindowsLinuxLocal, with optional Git Sync or cloud
Hoppscotch87.0Free and open sourceWebWindowsmacOSLinuxCommand lineSelf-hostedBrowser, desktop or self-hosted server
Yaak85.0Free plan, paid upgradesLinuxmacOSWindowsCommand lineYAML files in your project
Kreya84.5Free plan, paid upgradesmacOSWindowsLinuxNot listed
Thunder Client82.0Free plan, paid upgradesWindowsmacOSLinuxNot listed
Hurl81.5Free and open sourceWindowsmacOSLinuxCommand linePlain-text .hurl files
HTTPie79.5Free and open sourceCommand lineWebWindowsmacOSLinuxLocal terminal or desktop app