Apps similar to soapUI include Bruno, which is open source with a free version. Other options are Postman, Insomnia REST Client, Yaak and Hoppscotch. API Clients like soapUI are a crowded field, with more than 50 alternatives for Windows, Mac, Linux, the web and self-hosting.
GetAPI is a native macOS app that simplifies REST API testing by allowing users to import from Postman, make HTTP requests, and view responses in a streamlined interface.
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Create multi-step HTTP API checks in a visual editor by chaining requests, extracting response values, applying conditional logic, and setting assertions. Runs can be scheduled or triggered in CI/CD, logging payloads, assertion results, and timings for debugging.
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BridgeLab is an open-source desktop workbench to edit, validate and test HL7 v2 and FHIR messages — MLLP, HTTP, PHI masking, FHIRPath — offline.
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apikumo is an API workspace that combines an API client, a hosted documentation site, and a live MCP (Model Context Protocol) endpoint in one place. Design your API once, and every AI agent can call it.
Resonance is a local-first, zero-account API client application designed to provide an excellent user experience for testing and interacting with APIs. Built with Tauri, it offers a modern and intuitive interface for developers.
Hermes provides a Swing GUI to access JMS queues and topics for common tasks such as sending messages, removing messages and copying messages between queues and topics.
