Scripting software & tools

The editors, IDEs, runtimes, and utilities that pair well with the scripts on this site — curated, not hosted. Each link goes to the official source.

🔌 API & HTTP Testing

Load-testing and functional API testing tool.

Fast, open-source, offline-first Postman alternative that stores collections as files.

The ubiquitous command-line tool for transferring data with URLs.

Lightweight, open-source API request builder with a web and desktop app.

Command-line HTTP client with a friendly, human-readable output format.

Open-source-friendly REST/GraphQL API client.

Open-source framework combining API test automation, mocking, and performance testing.

The most widely used API client for building, testing, and documenting APIs.

API testing tool with strong support for SOAP as well as REST.

Renders interactive documentation directly from an OpenAPI specification.