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Karate alternatives: 5 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave Karate: not an interactive request client, and java toolchain can feel heavy. We ranked 5 alternatives by how directly each one replaces Karate, then by reviews, real visits and how recently each app's facts were checked against its own website. SoapUI currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1SoapUI logoSoapUIOpen sourceYesWindows, macOS, Linux4 of 466.5
2Hurl logoHurlOpen sourceYesLinux, macOS, Windows4 of 462.6
3Katalon Studio logoKatalon StudioFree plan + paidNoWindows, macOS, Linux4 of 459.6
4Bruno logoBrunoOpen sourceYesWindows, macOS, Linux3 of 357.5
5Postman logoPostmanFree plan + paidNoWeb, Windows, macOS +10 of 348.9
  1. SoapUI logo

    1. SoapUITop pick

    Best for: QA engineers testing SOAP and enterprise APIs who want a free, scriptable tool

    Open sourceWindows, macOS, Linux

    66.5

    score / 100

    Why switch from Karate

    A graphical open-source tool for functional REST and SOAP tests.

    Pros

    • Free and open source
    • Strong SOAP and WSDL support
    • Groovy scripting and data-driven tests
    • Runs in CI from the command line

    Cons

    • Dated, heavy Java interface
    • Steep learning curve
    • Many conveniences are only in paid ReadyAPI
    Visit SoapUI Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is SoapUI a good Karate alternative?

    Verified facts

    4 of 4 verified
    Open source
    Yes
    Checked Oct 25, 2026github.com(opens source in a new tab)
    Protocols
    REST, SOAP, GraphQL, JMS
    Checked Oct 25, 2026soapui.org(opens source in a new tab)
    Maker
    SmartBear
    Checked Oct 25, 2026soapui.org(opens source in a new tab)
    ReadyAPI trial
    14 days, no card
    Checked Oct 25, 2026soapui.org(opens source in a new tab)
  2. Hurl logo

    2. Hurl

    Best for: Developers who want readable, plain-text API tests that run in CI

    Open sourceLinux, macOS, Windows

    62.6

    score / 100

    Why switch from Karate

    Lighter plain-text HTTP tests with no Java toolchain.

    Pros

    • Plain-text files that diff well in Git
    • Assertions, captures and chained requests
    • Fast, built on libcurl
    • Free and open source

    Cons

    • No graphical interface
    • Text format to learn for complex flows
    • Not suited to exploring APIs interactively
    Visit Hurl Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Hurl a good Karate alternative?

    Verified facts

    4 of 4 verified
    License
    Apache-2.0
    Checked Oct 25, 2026github.com(opens source in a new tab)
    Format
    Plain text
    Checked Oct 25, 2026hurl.dev(opens source in a new tab)
    Platforms
    Linux, macOS, FreeBSD, Windows
    Checked Oct 25, 2026hurl.dev(opens source in a new tab)
    Maintainer
    Orange
    Checked Oct 25, 2026github.com(opens source in a new tab)
  3. Katalon Studio logo

    3. Katalon Studio

    Best for: QA teams who want API tests alongside web, mobile and desktop tests in one tool

    Free plan + paidWindows, macOS, Linux

    59.6

    score / 100

    Why switch from Karate

    Codeless and scripted tests across API, web and mobile.

    Pros

    • API, web, mobile and desktop testing together
    • Codeless steps plus Groovy scripting
    • Free version with no time limit
    • CI runs and reporting

    Cons

    • Expensive per-seat paid plans
    • Heavy for simple request testing
    • Free version limited to one local user
    Visit Katalon Studio Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Katalon Studio a good Karate alternative?

    Verified facts

    4 of 4 verified
    Free version
    Yes, no time limit
    Checked Oct 25, 2026katalon.com(opens source in a new tab)
    Free trial
    30-day Enterprise trial
    Checked Oct 25, 2026katalon.com(opens source in a new tab)
    Test types
    Web, mobile, API, desktop
    Checked Oct 25, 2026katalon.com(opens source in a new tab)
    Platforms
    Windows, macOS, Linux
    Checked Oct 25, 2026katalon.com(opens source in a new tab)
  4. Bruno logo

    4. Bruno

    Best for: Developers who want API collections stored in Git, offline

    Open sourceWindows, macOS, Linux

    57.5

    score / 100

    Why switch from Karate

    Open-source client with tests and a CLI runner for CI.

    Pros

    • Collections are plain files in Git
    • No cloud account required
    • Imports Postman collections

    Cons

    • No built-in cloud collaboration
    • Younger plugin ecosystem
    Visit Bruno Details and reviews
    How this score is calculated
    Editorial fit ×0.363
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Bruno a good Karate alternative?

    Verified facts

    3 of 3 verified
    Open source
    Yes
    Checked Oct 24, 2026github.com(opens source in a new tab)
    Offline-first
    Yes
    Checked Oct 24, 2026usebruno.com(opens source in a new tab)
    Git-friendly
    Collections stored as files
    Checked Oct 24, 2026usebruno.com(opens source in a new tab)
  5. Postman logo

    5. Postman

    Best for: Teams that want a full API lifecycle platform

    Free plan + paidWeb, Windows, macOS, Linux

    48.9

    score / 100

    Why switch from Karate

    Collections and JavaScript tests with a graphical runner.

    Pros

    • Covers design, testing, docs and monitoring
    • Supports REST, GraphQL, gRPC
    • Huge public API network

    Cons

    • Pushes cloud accounts and sync
    • Heavy for simple request testing
    Visit Postman Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1530
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Postman a good Karate alternative?

    Verified facts

    0 of 3 verified
    Free plan
    Yes
    Not checked yetpostman.com(opens source in a new tab)
    Protocols
    REST, GraphQL, gRPC, WebSocket
    Not checked yetpostman.com(opens source in a new tab)
    Platforms
    Web, Windows, macOS, Linux
    Not checked yetpostman.com(opens source in a new tab)

The best Karate alternative for…

The highest-ranked app in this list for each need.

SoapUI logo

Best Karate alternative for most people

SoapUI

A graphical open-source tool for functional REST and SOAP tests.

Hurl logo

Best Karate alternative for a free option

Hurl

Lighter plain-text HTTP tests with no Java toolchain.

Katalon Studio logo

Best Karate alternative for a free plan you can upgrade

Katalon Studio

Codeless and scripted tests across API, web and mobile.

Bruno logo

Best Karate alternative for open source

Bruno

Open-source client with tests and a CLI runner for CI.

Postman logo

Best Karate alternative for Mac

Postman

Collections and JavaScript tests with a graphical runner.

SoapUI logo

Best Karate alternative for Windows

SoapUI

A graphical open-source tool for functional REST and SOAP tests.

SoapUI logo

Best Karate alternative for Linux

SoapUI

A graphical open-source tool for functional REST and SOAP tests.

Postman logo

Best Karate alternative for working in the browser

Postman

Collections and JavaScript tests with a graphical runner.

Karate alternatives: common questions

What is the best alternative to Karate?

SoapUI ranks first right now. A graphical open-source tool for functional REST and SOAP tests. Hurl and Katalon Studio follow it in our ranking.

Is there a free alternative to Karate?

Yes. SoapUI (open source), Hurl (open source), Katalon Studio (free plan + paid) and Bruno (open source) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Karate?

Yes: SoapUI, Hurl and Bruno.

Which Karate alternatives work on Linux?

SoapUI, Hurl, Katalon Studio, Bruno and Postman run on Linux.

Why do people switch from Karate?

The complaints we hear most: not an interactive request client; java toolchain can feel heavy; some tooling only in paid editions.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Karate, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.