Instead of SoapUI
SoapUI alternatives
SoapUI gives developers and testers a free, open-source workspace for REST, SOAP, and GraphQL API work. It combines drag-and-drop functional and regression tests with assertions, data-driven cases, service mocks, scheduled runs, contract testing, and command-line load-test execution. SOAP projects can configure incoming and outgoing WS-Security, including encryption, signatures, SAML, keystores, and truststores. SoapUI runs on Windows, macOS, Linux, and self-hosted setups, and also supports JMS alongside SOAP/WSDL, REST, and GraphQL.
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Apidog
Free plan APIExtensionLinux+4Spec-driven API design with database integrations — Apidog adds specification-generated requests, response validation, visual test orchestration, database operations, and Postman compatibility.
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Insomnia
Free plan LinuxMacSelf-hosted+1Multi-protocol API design, testing, and collaboration — Insomnia adds OpenAPI-first design, broad protocols including gRPC and WebSockets, generated mocks, scripting, and an MCP client.
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Bruno
Free plan Open source APIExtensionLinux+3Git-native teams managing plain-text API collections — Bruno stores collections as plain-text repository files and pairs them with assertions, automation, CI/CD, CLI, extensions, and mock servers.
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HTTPie
Free plan Open source LinuxMacWeb+1Simple command-line and offline API interactions — HTTPie centers on an expressive CLI and adds offline desktop/web workspaces, realtime sync, previews, and AI-assisted graphical features.
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Hoppscotch
Free plan APILinuxMac+3Collaborative, self-hosted API development — Hoppscotch adds team workspaces, access roles, real-time collaboration, on-prem deployment, and protocols such as MQTT and Socket.IO.
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Hurl
Free plan LinuxMacSelf-hosted+1Plain-text, command-line HTTP testing in CI — Hurl defines requests in plain text and adds chained captures, response queries, detailed assertions, and text, JUnit, TAP, or HTML reports.
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xh
Free plan Open source AndroidLinuxMac+1 - 9
OpenReq
Free plan ExtensionSelf-hostedWeb+1 - 10
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Altair GraphQL Client
Free plan ExtensionLinuxMac+3 - 12
Firecamp
Free plan LinuxMacSelf-hosted+2 - 13
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grpcurl
Free plan LinuxMacSelf-hosted+1 - 16
Insomnium
Free plan LinuxMacSelf-hosted+1 - 17
API Dash
Free plan iPhoneLinuxMac+1 - 18
Restfox
Free plan ExtensionLinuxMac+3 - 19
httpYac
Free plan ExtensionSelf-hosted - 20
Vegha
Free plan LinuxMacWindows - 21
Yaak
Free plan LinuxMacWindows - 22
Chapar
Free plan LinuxMacWindows - 23
grpcui
Free plan LinuxMacSelf-hosted+2 - 24
Restish
Free plan LinuxMacSelf-hosted+1
Readers may look elsewhere when they need more than SoapUI Open Source's basic functional and performance testing scope, or prefer a different API workflow. Alternatives offer specification-driven design, multi-protocol clients, Git-versioned collections, collaborative workspaces, offline operation, or command-line-first testing. Compare the protocols, scripting, mocking, CI/CD execution, environments, documentation, and deployment model you need. Pricing ranges from free products to subscriptions charged monthly or per user, so consider both capabilities and how each plan fits your team.