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Altair GraphQL Client alternatives: 5 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave Altair GraphQL Client: graphQL only, and mostly maintained by one developer. We ranked 5 alternatives by how directly each one replaces Altair GraphQL Client, 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 368.8
2Hoppscotch logoHoppscotchOpen sourceYesWeb, Windows, macOS +23 of 361.8
3Bruno logoBrunoOpen sourceYesWindows, macOS, Linux3 of 357.5
4Yaak logoYaakFree plan + paidYesmacOS, Windows, Linux5 of 557.2
5Postman logoPostmanFree plan + paidNoWeb, Windows, macOS +10 of 354.3
  1. Insomnia logo

    1. InsomniaTop pick

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

    Open sourceWindows, macOS, Linux

    68.8

    score / 100

    Why switch from Altair GraphQL Client

    Handles GraphQL plus REST and gRPC in one desktop client.

    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 ×0.3100
    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 Altair GraphQL Client 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. Hoppscotch logo

    2. Hoppscotch

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

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

    61.8

    score / 100

    Why switch from Altair GraphQL Client

    Open-source web client with GraphQL, REST and realtime tabs.

    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 ×0.377
    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 Altair GraphQL Client 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)
  3. Bruno logo

    3. Bruno

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

    Open sourceWindows, macOS, Linux

    57.5

    score / 100

    Why switch from Altair GraphQL Client

    Open-source desktop client with GraphQL and REST collections in Git.

    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 Altair GraphQL Client 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)
  4. Yaak logo

    4. Yaak

    Best for: Developers who want a fast, private desktop client and dislike cloud accounts

    Free plan + paidOpen sourcemacOS, Windows, Linux

    57.2

    score / 100

    Why switch from Altair GraphQL Client

    Fast desktop client for GraphQL, REST, gRPC and WebSockets.

    Pros

    • REST, GraphQL, gRPC, WebSocket and SSE in one app
    • Local-first, no account, no telemetry
    • Git-friendly file sync
    • MIT-licensed source

    Cons

    • Commercial use needs a paid licence
    • Smaller plugin ecosystem than Postman
    • Limited real-time team collaboration
    Visit Yaak Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    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 Yaak a good Altair GraphQL Client alternative?

    Verified facts

    5 of 5 verified
    License
    MIT
    Checked Oct 25, 2026github.com(opens source in a new tab)
    Personal use
    Free
    Checked Oct 25, 2026yaak.app(opens source in a new tab)
    Individual licence
    $79 per year
    Checked Oct 25, 2026yaak.app(opens source in a new tab)
    Platforms
    Mac, Windows, Linux
    Checked Oct 25, 2026yaak.app(opens source in a new tab)
    Telemetry
    None in desktop app
    Checked Oct 25, 2026yaak.app(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

    54.3

    score / 100

    Why switch from Altair GraphQL Client

    GraphQL support alongside REST, with team workspaces.

    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 ×0.387
    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 Altair GraphQL Client 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 Altair GraphQL Client alternative for…

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

Insomnia logo

Best Altair GraphQL Client alternative for most people

Insomnia

Handles GraphQL plus REST and gRPC in one desktop client.

Hoppscotch logo

Best Altair GraphQL Client alternative for a free option

Hoppscotch

Open-source web client with GraphQL, REST and realtime tabs.

Yaak logo

Best Altair GraphQL Client alternative for a free plan you can upgrade

Yaak

Fast desktop client for GraphQL, REST, gRPC and WebSockets.

Bruno logo

Best Altair GraphQL Client alternative for open source

Bruno

Open-source desktop client with GraphQL and REST collections in Git.

Hoppscotch logo

Best Altair GraphQL Client alternative for self-hosting

Hoppscotch

Open-source web client with GraphQL, REST and realtime tabs.

Postman logo

Best Altair GraphQL Client alternative for Mac

Postman

GraphQL support alongside REST, with team workspaces.

Insomnia logo

Best Altair GraphQL Client alternative for Windows

Insomnia

Handles GraphQL plus REST and gRPC in one desktop client.

Insomnia logo

Best Altair GraphQL Client alternative for Linux

Insomnia

Handles GraphQL plus REST and gRPC in one desktop client.

Hoppscotch logo

Best Altair GraphQL Client alternative for working in the browser

Hoppscotch

Open-source web client with GraphQL, REST and realtime tabs.

Altair GraphQL Client alternatives: common questions

What is the best alternative to Altair GraphQL Client?

Insomnia ranks first right now. Handles GraphQL plus REST and gRPC in one desktop client. Hoppscotch and Bruno follow it in our ranking.

Is there a free alternative to Altair GraphQL Client?

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

Is there an open-source alternative to Altair GraphQL Client?

Yes: Insomnia, Hoppscotch, Bruno and Yaak. Hoppscotch can also be self-hosted.

Which Altair GraphQL Client alternatives work on Linux?

Insomnia, Hoppscotch, Bruno, Yaak and Postman run on Linux.

Why do people switch from Altair GraphQL Client?

The complaints we hear most: graphQL only; mostly maintained by one developer; team sync features are basic.

How is this list ranked?

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