Yaak

Judgement

What it is

Developer tool

What it does

A desktop API client for REST, GraphQL, WebSockets, server-sent events and gRPC, built with Tauri, storing workspaces locally with optional Git sync.

Adopt it when

You want a fast, local Postman alternative without an account.

Watch out

Free for personal use, but commercial use requires buying a license.

Ready for

Production-ready

Runs as

Desktop app

Built with

TypeScript, Rust, Tauri and React

How established

Established: started 3 years ago, latest release v2026.9.1.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Yaak → TypeScript → Go → runs on a microchip

How compilers were built, back to punched paper tape

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