Head-to-head · API Testing Tools
SoapUI vs Insomnia
SoapUI leads on 0 checks, Insomnia on 0, and 7 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreSoapUI · 9.0/10
- Free planboth
- Free trialonly Insomnia
- Most featuresSoapUI · 6 of 6
SoapUI scores higher on our rubric for api testing tools: 9.0 against 8.7 out of 10; our editors rank them #3 and #6.
SoapUI is the better fit for teams testing SOAP, REST, and service performance. Insomnia is the better fit for developers needing a flexible open-source API client.
- SoapUI fits best
Teams testing SOAP, REST, and service performance
- Insomnia fits best
Developers needing a flexible open-source API client
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Side by side
| Feature | SoapUI 9.0/10 Visit ↗ | Insomnia 8.7/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.0 | 8.7 |
| Ranking | #3 in API Testing Tools | #6 in API Testing Tools |
| Best for | Teams testing SOAP, REST, and service performance | Developers needing a flexible open-source API client |
| Pricing model | Free | Free plan + paid |
| Starting price | Free | $12/user/mo |
| Free plan | ✓ | ✓ |
| Free trial | — | 14 days |
| Deployment | Desktop | Cloud, Self-hosted, Desktop |
| Platforms | Windows, macOS, Linux | Windows, macOS, Linux |
| Support | Community, Docs | |
| Integrations | 9 integrations | 9 integrations |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features SoapUI 6/6 · Insomnia 4/6 | ||
| GraphQL support | ✓ | ✓ |
| SOAP support | ✓ | ✓ |
| Scheduled runs | ✓ (best) | Not checked yet |
| CI/CD integration | ✓ | ✓ |
| Mock server | ✓ | ✓ |
| Contract testing | ✓ (best) | Not checked yet |
| Specs | ||
| Included requests | Not checked yet | Not checked yet |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | SoapUI is an open-source desktop API testing tool for developers and testers working with REST, SOAP, HTTP, and GraphQL services. It is suited to teams that need one application for functional, regression, interoperability, performance,… Read the review → |
Insomnia is an open-source API collaboration platform for developers and teams building, testing, debugging, and designing APIs. It supports REST, GraphQL, gRPC, WebSocket, SOAP, and SSE workflows, making it suited to teams working across… Read the review → |
Strengths and trade-offs
SoapUI — where it wins
- Covers REST, SOAP, GraphQL, functional, regression, and performance testing
- Includes service mocking, contract coverage, assertions, and schema validation
- Runs locally on Windows, macOS, and Linux with command-line execution
Where it doesn't
- Desktop-focused rather than a browser-based testing platform
- Enterprise testing capabilities are provided through separate ReadyAPI products
- Groovy and JavaScript scripting may require scripting knowledge
Insomnia — where it wins
- Supports REST, GraphQL, gRPC, WebSocket, SOAP, and SSE
- Combines scripting, environments, mocking, testing, and OpenAPI tools
- Offers local, Git, and cloud storage with Inso CLI automation
Where it doesn't
- Essentials Git Sync projects support up to 3 users
- Role-based access control and SSO/SCIM are Enterprise features
- Pro costs $12 per user per month when billed monthly
- SoapUI9.0/10 · Free plan
A broad, free API testing desktop tool for functional, contract, performance, and load work.
Visit SmartBearFull verdict → - Insomnia8.7/10 · Free plan · 14-day trial
A flexible, open-source API client with broad protocol support and CLI automation.
Visit InsomniaFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update






