Best Open Source Alternatives to SoapUI Pro

Compare the best free and open-source alternatives to SoapUI Pro — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated August 2026 · 3 alternatives

SoapUI Pro

Proprietary SaaS

PricingPaid

Platformsmacos, windows, linux

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SoapUI Pro alternatives compared

Open-source alternatives to SoapUI Pro, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Hoppscotch	79,941	MIT	WebDocker	Yes	Jul 2026	Visit
Bruno	46,065	MIT	macOSWindowsLinux	No	Jul 2026	Visit
Milkman	1,339	MIT	macOSWindowsLinux	No	Jul 2026	Visit

Top open-source SoapUI Pro alternatives

Hoppscotch79,941MIT

Open source API development platform.

WebDocker

vs SoapUI Pro: a free, open-source option you fully control, licensed MIT.

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Bruno46,065MIT

Lightweight Git-friendly API client.

macOSWindowsLinux

vs SoapUI Pro: a free, open-source option you fully control, licensed MIT.

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Milkman1,339MIT

Extensible request client for multiple protocols.

macOSWindowsLinux

vs SoapUI Pro: a free, open-source option you fully control, licensed MIT.

Visit Details