Yaak
Mountain Loop · A privacy-first desktop API client for REST, GraphQL, gRPC, WebSocket and server-sent events, with workspaces, environments, authentication and collection imports.
介绍
Yaak is an offline-first desktop API client built with Tauri, Rust and React. It lets developers send requests, inspect responses and organize API workflows without depending on a hosted account or cloud lock-in. The official project describes its privacy approach as no telemetry and distinguishes the MIT-licensed source from its prebuilt application licensing.
APIs and response inspection
Work with REST, GraphQL, gRPC, WebSocket and server-sent events from one client. Import existing collections from Postman, Insomnia, OpenAPI, Swagger or Curl, and filter responses with JSONPath or XPath. These tools help reproduce requests and inspect API behavior during development and debugging.
Authentication and sensitive values
The official feature list includes OAuth 2.0, JWT, Basic Auth and custom authentication plugins. Sensitive values can be encrypted as secrets or stored in the operating system keychain. Configure credentials for your own service and avoid committing secret values with shared workspace files.
Workspaces and customization
Group requests into workspaces and nested folders. Environment variables let you switch between development, staging and production. Workspaces can be mirrored to the filesystem for Git versioning or file synchronization. Template tags supply dynamic values such as UUIDs and timestamps; themes and plugins provide additional customization.
macOS installation and licensing
Install the stable application with brew install --cask yaak or use the official download page. This listing is the stable Homebrew cask, not yaak@beta; Homebrew records macOS 13 or later and an Apple-silicon aarch64 DMG for version 2026.8.1. The listed download size was measured from that exact artifact's Content-Length.
The source is MIT licensed and can be built and run free for personal or commercial use. According to the official README, prebuilt binaries are free for personal use and require a license for commercial use; consult the current pricing terms before deployment.
Sources
新版本 2026.8.1 更新内容 9月23日 · OpenNavo 编辑
Fixes PDF previews failing to load and autocomplete creating malformed tags after a manually typed template opener.