A fast, extensible JavaFX-based workbench for crafting and testing HTTP, gRPC, GraphQL, and other requests via plugins.
Milkman is an extensible request/response workbench for developers and testers to craft, execute, and manage various types of API and database requests. It serves as a fast, plugin-based alternative to tools like Postman, supporting protocols such as HTTP, gRPC, GraphQL, and SQL via JDBC. The project addresses frustrations with slow, memory-heavy Electron apps by offering a lightweight JavaFX-based desktop application.
Developers, QA engineers, and DevOps professionals who need a customizable and performant tool for API testing, debugging, and automation across multiple protocols and data sources.
Milkman stands out due to its plugin-first design, allowing deep customization and extension, combined with the speed and efficiency of a JavaFX native application. It avoids cloud account requirements and vendor lock-in, emphasizing user control and flexibility.
An Extensible Request/Response Workbench
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Milkman starts quickly and uses less memory than Electron-based tools like Postman, directly addressing slow startup times as highlighted in the README's motivation.
Nearly every component is a plugin, allowing deep customization and support for protocols like HTTP, gRPC, and JDBC, enabling users to tailor the tool to specific needs.
Avoids account requirements and cloud dependencies, with features like Git synchronization for team collaboration, ensuring user control over data as stated in the philosophy.
Through plugins, it handles HTTP, GraphQL, WebSocket, JDBC, Cassandra, and more, making it a versatile workbench for various API and database testing scenarios.
Supports importing collections from Postman and Insomnia via dump files, facilitating a smooth transition for users moving away from those tools without account hurdles.
Users must download and install plugins separately, which can be cumbersome, and the core application lacks functionality without them, as noted in the download instructions.
The GraphQL plugin has no auto-complete or schema validation, which are essential for complex GraphQL development, making it less suitable for advanced use cases.
As an open-source project, it has fewer plugins, less comprehensive documentation, and slower updates compared to established tools like Postman, potentially limiting support.
Installation involves manual steps like unzipping files and managing plugin directories, which could be challenging for non-technical users seeking a simple install.
Milkman is an open-source alternative to the following products: