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Yaak
v2025.9 → ARM Builds and 1Password

The API client for modern developers

A fast, secure, and offline API client that works with Git.

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100k
Open Source

Apple Linux Available for Mac, Windows, and Linux

Fast and private

Local-only data, secrets encryption, and zero telemetry.

Works with Git

Optionally store data as plain-text for Git, DropBox, etc.

Extend with Plugins

NodeJS plugin system for auth, template functions, and more.

My API Production › List Launches Content WS Chat Server 101 GRPC Users/Create ERR GET Get Video 206 API WS Create User 400 GRPC Users/Create ERR GQL List Launches 200 GET Event Stream 200 POST Get Video 206 PUT comments/:id 200 main POST BASE_URL /graphql GraphQL Params Headers 3 Auth 1 2 3 4 5 6 7 8 9 10 launcheslimit    details     id     launch_date     launch_sitesite $limit$limit (: ) {   (: ) { {           }   } } query LaunchesInt | Variables 1 2 3 10 "count" { : } • 480 ms • 2 KB 200 OK Pretty Headers 8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 [ null null null "Engine failure""5eb87cd9ffd""2006-03-25""Successful stage""5eb87cdaffd""2007-03-21""Residual thrust""5eb87cdbffa""2008-08-03""Ratsat was carried""5eb87cdbffd86e000604b32c" "data""details""id""launch_date""launch_site""details""id""launch_date""launch_site""details""id""launch_date""launch_site""details""id" {   :     {       : ,       : ,       : ,       :     },     {       : ,       : ,       : ,       :     },     {       : ,       : ,       : ,       :     },     {       : ,         : , a site_id a site_name a site_name_long

Hey, I'm Greg 👋🏼

Having created and sold Insomnia in 2019, I didn't think I'd build another API client, but the tools changed for the worse and I found myself looking for something better.

I started over and built something I'm proud to put my name behind.

Trusted by developers

Modern, offline, open source, Git friendly, and extensible. What's not to love?

sauce
Seems like @yaakapp is the first true replacement for Postman with feature parity ... Simple, fast, beautiful and NO LOGIN POPUPS 😫🥹
Faraz Patankar
My go-to tool for testing APIs as I build them. The interface is clean and much nicer to use than bloated alternatives like Insomnia and Postman.
Alex Yumashev
Yaak is my new favorite REST client P.S. Ironically, made by the same guy who built Insomnia, sold it, now making a new one 🤣🤣
mariodev ⚡
First it was Postman, then insomnia was the new kid in the block, these two suckers got old and smell corpo from miles away, it is time now for yaak.app
EGOIST
Yaak is now my first choice for API testing, light-weight yet powerful ✅ (powered by @TauriApps again)

Developer friendly

Work in the ways you're already used to.

Everything you need

Yaak's keeps things simple by default, exposing features only when needed.

Start from anywhere

Integrate with your existing workflow by importing data from many places:

PostmanInsomniaOpenAPICurlSwagger

Call any API

Mix multiple protocols together and work on any API within a single workspace.

RESTHTTPGraphQLgRPCWebSocketServer Sent Events

Authenticate anything

Automatically handle complex request authentication, so you don't have to:

OAuth 2.0AWS v4JWTBasicBearerAPI KeyCustom

Request chaining
Variables
Encrypted secrets
Auth inheritance
Batch send
Custom proxy
Cookies
Rich previews
Import/export
Paste Curl
Copy as Curl
Streaming
Git UI
Command palette
Autocomplete
Request docs

Constantly improving

Your feedback has been shaping Yaak since its launch in January 2024.

2025.9.01Password, NTLM Auth, and Better Git Compatibility
2025.9.32025.9.3
2025.9.22025.9.2
2025.9.12025.9.1
2025.8.22025.8.2
2025.8.12025.8.1
2025.8.0Sidebar Filtering, Environment Ordering, and Better Postman Imports
2025.7.32025.7.3
View Roadmap

Still not convinced?

Import an existing Postman, Insomnia, or OpenAPI collection and get started instantly.

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100k