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Head-to-head · API Testing Tools

SoapUI vs Insomnia

  • Updated Oct 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score SoapUI #3 in API Testing Tools 9.0/10 Free plan Free plan✓ 6 of 6 features Visit SmartBear
Insomnia #6 in API Testing Tools 8.7/10 Free plan · 14-day trial Free planFree trial✓ 4 of 6 features Visit 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

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

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 Email
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
  • 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
  • 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
Cons
  • 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
  • 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
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 →
  1. SoapUIAPI Testing Tools 9.0Free plan
  2. InsomniaAPI Testing Tools 8.7Free plan · 14-day trial

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 →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update