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SoapUI Open Source vs Insomnia: catalog facts
SoapUI Open Source	Insomnia
Free The open source edition is free; the commercial ReadyAPI product is paid.	Freemium Free to use, with a free account unlocking most features. Kong sells paid plans for teams…
Windows, macOS, Linux	Windows, macOS, Linux
Strong SOAP and WSDL support Functional test suites with custom scripting	REST, GraphQL, gRPC, WebSockets and Server-Sent Events in one client Local Vault and Git Sync mean the cloud is optional
GraphQL, gRPC and CI integrations are reserved for paid ReadyAPI Website heavily promotes the commercial product	Most features expect an account, even though a Scratch Pad works without one The 2023 move to account-first storage cost it a lot of goodwill
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: Apache-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.