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Apidog alternatives: 6 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave Apidog: busy interface with a learning curve, and collaboration relies on the cloud service. We ranked 6 alternatives by how directly each one replaces Apidog, then by reviews, real visits and how recently each app's facts were checked against its own website. Insomnia currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Insomnia logoInsomniaOpen sourceYesWindows, macOS, Linux3 of 364.8
2Scalar logoScalarFree plan + paidYesWeb, macOS, Windows +14 of 459.6
3Hoppscotch logoHoppscotchOpen sourceYesWeb, Windows, macOS +23 of 359.4
4Postman logoPostmanFree plan + paidNoWeb, Windows, macOS +10 of 358.3
5SoapUI logoSoapUIOpen sourceYesWindows, macOS, Linux4 of 455.3
6Testfully logoTestfullyFree plan + paidNoWeb, Windows, macOS +14 of 453.6
  1. Insomnia logo

    1. InsomniaTop pick

    Best for: Developers who want an open-source desktop API client

    Open sourceWindows, macOS, Linux

    64.8

    score / 100

    Why switch from Apidog

    A simpler client with design-first OpenAPI editing.

    Pros

    • Open source
    • Local, Git or cloud storage
    • Clean interface

    Cons

    • Account prompts in recent versions
    • Collaboration needs paid plans
    Visit Insomnia Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    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 Insomnia a good Apidog alternative?

    Verified facts

    3 of 3 verified
    Open source
    Yes
    Checked Oct 24, 2026github.com(opens source in a new tab)
    Maker
    Kong
    Checked Oct 24, 2026insomnia.rest(opens source in a new tab)
    Free plan
    Yes
    Checked Oct 24, 2026insomnia.rest(opens source in a new tab)
  2. Scalar logo

    2. Scalar

    Best for: API teams who work spec-first with OpenAPI and want docs and a client together

    Free plan + paidOpen sourceWeb, macOS, Windows, Linux

    59.6

    score / 100

    Why switch from Apidog

    Open-source API client and docs built around OpenAPI.

    Pros

    • Open-source client and API reference
    • Generates collections straight from OpenAPI
    • Desktop, web and embedded in docs
    • Free hosted plan for small APIs

    Cons

    • Fewer testing and automation features
    • Paid docs plans are pricey for small teams
    • Focus is on the docs platform
    Visit Scalar 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 Scalar a good Apidog alternative?

    Verified facts

    4 of 4 verified
    License
    MIT
    Checked Oct 25, 2026github.com(opens source in a new tab)
    Platforms
    macOS, Windows, Linux, browser
    Checked Oct 25, 2026scalar.com(opens source in a new tab)
    OpenAPI import
    Yes
    Checked Oct 25, 2026scalar.com(opens source in a new tab)
    Free plan
    Yes, up to 25 endpoints
    Checked Oct 25, 2026scalar.com(opens source in a new tab)
  3. Hoppscotch logo

    3. Hoppscotch

    Best for: Quick browser-based API testing and self-hosted team workspaces

    Open sourceSelf-hostableWeb, Windows, macOS, Linux, Self-hosted

    59.4

    score / 100

    Why switch from Apidog

    Open-source and self-hostable, lighter for everyday request testing.

    Pros

    • Runs in the browser
    • Open source and self-hostable
    • Supports many protocols

    Cons

    • Fewer advanced testing features than Postman
    • Browser CORS limits need a proxy or extension
    Visit Hoppscotch Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    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 Hoppscotch a good Apidog alternative?

    Verified facts

    3 of 3 verified
    Open source
    Yes
    Checked Oct 24, 2026github.com(opens source in a new tab)
    Self-hosting
    Yes
    Checked Oct 24, 2026hoppscotch.com(opens source in a new tab)
    Runs in browser
    Yes
    Checked Oct 24, 2026hoppscotch.com(opens source in a new tab)
  4. Postman logo

    4. Postman

    Best for: Teams that want a full API lifecycle platform

    Free plan + paidWeb, Windows, macOS, Linux

    58.3

    score / 100

    Why switch from Apidog

    The most widely used platform, with the biggest ecosystem and community.

    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 ×0.3100
    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 Apidog 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)
  5. SoapUI logo

    5. SoapUI

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

    Open sourceWindows, macOS, Linux

    55.3

    score / 100

    Why switch from Apidog

    Free, open-source functional testing for REST and SOAP APIs.

    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 ×0.363
    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 Apidog 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)
  6. Testfully logo

    6. Testfully

    Best for: Small teams that want an API client, tests and monitoring at a modest price

    Free plan + paidWeb, Windows, macOS, Linux

    53.6

    score / 100

    Why switch from Apidog

    API client, codeless tests and monitoring with a free developer edition.

    Pros

    • Offline or cloud workspaces
    • Codeless tests reused as monitors
    • Free edition for up to five users
    • SOC 2, ISO 27001 and HIPAA compliance

    Cons

    • Monitoring billed separately
    • Smaller community and ecosystem
    • Fewer protocols than larger clients
    Visit Testfully Details and reviews
    How this score is calculated
    Editorial fit ×0.357
    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 Testfully a good Apidog alternative?

    Verified facts

    4 of 4 verified
    Free plan
    Developer Edition
    Checked Oct 25, 2026testfully.io(opens source in a new tab)
    Team edition
    $14 per user/month, billed annually
    Checked Oct 25, 2026testfully.io(opens source in a new tab)
    Compliance
    SOC 2 Type 2, ISO 27001, HIPAA
    Checked Oct 25, 2026testfully.io(opens source in a new tab)
    Offline mode
    Yes
    Checked Oct 25, 2026testfully.io(opens source in a new tab)

The best Apidog alternative for…

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

Insomnia logo

Best Apidog alternative for most people

Insomnia

A simpler client with design-first OpenAPI editing.

Hoppscotch logo

Best Apidog alternative for a free option

Hoppscotch

Open-source and self-hostable, lighter for everyday request testing.

Scalar logo

Best Apidog alternative for a free plan you can upgrade

Scalar

Open-source API client and docs built around OpenAPI.

SoapUI logo

Best Apidog alternative for open source

SoapUI

Free, open-source functional testing for REST and SOAP APIs.

Hoppscotch logo

Best Apidog alternative for self-hosting

Hoppscotch

Open-source and self-hostable, lighter for everyday request testing.

Postman logo

Best Apidog alternative for Mac

Postman

The most widely used platform, with the biggest ecosystem and community.

Testfully logo

Best Apidog alternative for Windows

Testfully

API client, codeless tests and monitoring with a free developer edition.

Insomnia logo

Best Apidog alternative for Linux

Insomnia

A simpler client with design-first OpenAPI editing.

Scalar logo

Best Apidog alternative for working in the browser

Scalar

Open-source API client and docs built around OpenAPI.

Apidog alternatives: common questions

What is the best alternative to Apidog?

Insomnia ranks first right now. A simpler client with design-first OpenAPI editing. Scalar and Hoppscotch follow it in our ranking.

Is there a free alternative to Apidog?

Yes. Insomnia (open source), Scalar (free plan + paid), Hoppscotch (open source) and Postman (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Apidog?

Yes: Insomnia, Scalar, Hoppscotch and SoapUI. Hoppscotch can also be self-hosted.

Which Apidog alternatives work on Linux?

Insomnia, Scalar, Hoppscotch, Postman and SoapUI run on Linux.

Why do people switch from Apidog?

The complaints we hear most: busy interface with a learning curve; collaboration relies on the cloud service; main website needs JavaScript, so details are hard to check.

How is this list ranked?

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