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Yaak

The local-first API client

Send HTTP, GraphQL, gRPC, WebSocket, and SSE requests. Works offline with no account, plain-file Git sync, and a CLI built for agents

Apple Linux Available for Mac, Windows, and Linux

Private by default

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

Works with Git

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

Agent friendly

Full CLI for agents to create, update, and send requests.






Developer friendly

Work in the ways you're already used to.


Powerful when you need it

Yaak 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 1/2AWS 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

Security and privacy

Local-only, no telemetry, and encrypted secrets.

Local-only data

Requests and history live on your device. No cloud.

Encrypted secrets

ChaCha20-Poly1305 with keys in the OS keychain.

Zero telemetry

No analytics or tracking in the app.

No account required

Download and use. Nothing to sign up for.

No built-in AI

Connect your own agents via the CLI or MCP server.

Open source

MIT-licensed source you can audit and build yourself.

Read the security and privacy overview



Trusted by developers

JustSteveKing
I've been using @yaakapp for a while now, and I absolutely love it! If you need a https client for your desktop, go check it out
Mubashir
Yaak is the best API client out there 🔥 I love the clean simple UI which is not bloated but still does a lot ♥️ ... Syncs your workspace with Git 👏
EGOIST
Yaak is now my first choice for API testing, light-weight yet powerful ✅ (powered by @TauriApps again)
Timothy Cole
I’m blown away by how much better it is than Postman or Insomnia. It’s fast, clean, and reliable, which has made managing our APIs effortless.
KindMonitor6206
I like the feature where you can paste in curl examples and it formats it right into the client for use. The guy who made Insomnia started Yaak.

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.






Bring your existing collections

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