Yaak
Yaak is a desktop API client for organizing and executing REST, GraphQL, WebSockets, Server-Sent Events, and gRPC requests.
What’s new
Verified 3h ago
The [changelog for 2026.8.1](https://yaak.app/changelog/2026.8.1) has the full write-up, with screenshots of the headline features. Here's everything that changed.
### 🛠️ Fixed
- Fix PDF previews failing to load ([#704](https://github.com/mountain-loop/yaak/pull/704), [feedback](https://yaak.app/feedback/posts/view-pdf-bug))
- Fix autocomplete producing malformed tags after manually typing a template opener ([#692](https://github.com/mountain-loop/yaak/pull/692), [feedback](https://yaak.app/feedback/posts/grpc-body-params-strange-behavior))
> *These binaries follow Yaak's [pricing terms](https://yaak.app/pricing): free for personal use, license required for commercial use. The source is MIT licensed and can be built and run for free, for both personal and commercial use.*
Full release notes →
The [changelog for 2026.8.1](https://yaak.app/changelog/2026.8.1) has the full write-up, with screenshots of the headline features. Here's everything that changed.
### 🛠️ Fixed
- Fix PDF previews failing to load ([#704](https://github.com/mountain-loop/yaak/pull/704), [feedback](https://yaak.app/feedback/posts/view-pdf-bug))
- Fix autocomplete producing malformed tags after manually typing a template opener ([#692](https://github.com/mountain-loop/yaak/pull/692), [feedback](https://yaak.app/feedback/posts/grpc-body-params-strange-behavior))
> *These binaries follow Yaak's [pricing terms](https://yaak.app/pricing): free for personal use, license required for commercial use. The source is MIT licensed and can be built and run for free, for both personal and commercial use.*
Official download sources
Each source below has been validated against an approved publisher domain and editorially approved. Links route through a safe internal redirect.
Verified checksum File integrity
Verify your downloaded file matches the publisher’s official hash before installing.
SHA-256
72ffdf0efe5c55e19081f4727f58e88d58da626b50d0808084746084785f0526
Install with one command
Prefer a package manager? Paste this into Windows Terminal:
scoop
scoop bucket add extras; scoop install yaak
choco
choco install yaak -y
Platforms: Windows
Yaak compared
A factual, side-by-side overview based only on verified data.
| Attribute | Yaak This page | Pake | WezTerm | MSBuildStructuredLog |
|---|---|---|---|---|
| Developer | Mountain Loop | tw93 | Wez Furlong | Kirill Osenkov |
| Category | Developer Tools | Developer Tools | Developer Tools | Developer Tools |
| Platforms | Windows | Windows | Windows | Windows |
| Official sources | 1 | 1 | 1 | 1 |
| Verified official | ✓ | ✓ | ✓ | ✓ |
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Frequently asked questions
Where can I download Yaak safely?
Use the official sources listed on this page. Each link is validated against an approved publisher domain and routes through a safe internal redirect — no third-party or bundled installers.
Which platforms does Yaak support?
Yaak is available for Windows.
Is this the official Yaak download?
Yes. Every source shown here is validated against the publisher’s approved domain and editorially reviewed before being published.
Who develops Yaak?
Yaak is developed by Mountain Loop.
What are the best alternatives to Yaak?
Popular alternatives include Slint, Sqlectron and Flutter. See the comparison above for a side-by-side overview.
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