OpenReq vs Yaak

OpenReq is a free, community-driven API testing application released under the MIT License. It runs as a self-hosted web application, a standalone desktop application, and a Windows client. HTTP, WebSocket, and GraphQL requests are supported as first-class request types, with visual test flows, collection runs, assertions, scripts, delays, conditions, loops, and reports. Automated test runs and API documentation are included, and API testing has no stated usage limits. Collections can become read-only public documentation links, optionally protected by passwords; viewers do not need accounts. OpenReq generates request code for cURL, Python, JavaScript, Go, Java, C#, and PHP. Integrations include Ollama, Postman, OpenAPI, raw cURL, Chrome, and Electron. Ollama can provide local AI features without a cloud API key or sending data away from the machine. The Windows desktop client is frontend-only and needs a separately hosted backend. Most endpoints use JWT bearer authentication, while local proxy setup uses HMAC-signed tokens.

Yaak is a local-first desktop API client for sending requests, debugging APIs, and collaborating through Git. It runs on Linux, macOS, and Windows, and supports HTTP/REST, GraphQL, gRPC, WebSocket, and server-sent events. Users can arrange requests in workspaces and folders, switch environments, and reuse authentication and variables. Directory sync stores requests, folders, and environments as individual YAML files for Git workflows.

Yaak imports work from Postman, Insomnia, Bruno, OpenAPI, and curl. Plugins support authentication, importers, and template functions, with a 1Password plugin for retrieving passwords. The desktop app stores data locally and sends API requests directly to chosen servers; it has no built-in analytics or tracking. Optional workspace secret encryption uses XChaCha20-Poly1305, with the master key protected by the operating system keychain. Free use is for personal purposes; commercial use requires a license. Individual Annual costs $79 a year, and a 30-day trial is available.