Insomnia vs SoapUI: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Insomnia and SoapUI side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Insomnia
API client for REST and GraphQL
Best for you if:
- • You want supports 7+ API protocols in a single tool, no need for separate clients
SoapUI
The world's most popular open-source API testing tool for REST, SOAP, and GraphQL.
Best for you if:
- • You want completely free and open-source
| At a Glance | Insomnia | SoapUI |
|---|---|---|
Starts at | Free plan, paid from $12/user/mo, billed monthly Pro plan | Free plan |
Category | API Tools Developer Tools | API Tools Testing & QA |
Rating | 4.4/5 G2 4.4 21 reviews | 4.5/5 Capterra 4.5 · G2 4.4 310 reviews |
Free plan | Yes | Yes |
Watch out for | Overage fees for mock server requests on Pro tier | Potential for add-on features in ReadyAPI |
Choose Insomnia or SoapUI?
Choose Insomnia if
- You want supports 7+ API protocols in a single tool, no need for separate clients
- You want free tier includes unlimited local projects, collection runs, and environments
Choose SoapUI if
- You want completely free and open-source
- You want supports multiple API protocols
In-Depth Analysis
Insomnia
API client for REST and GraphQL
Insomnia's pricing is quite generous, especially with its robust free 'Essentials' tier which offers significant functionality for individual developers and small teams.
Watch out
Overage fees for mock server requests on Pro tier
Strengths
- Pro: Supports 7+ API protocols in a single tool, no need for separate clients
- Pro: Free tier includes unlimited local projects, collection runs, and environments
- Pro: Git Sync provides true version control without vendor lock-in
- Pro: Open-source core means transparency and community-driven development
- Pro: Inso CLI integrates API testing directly into CI/CD pipelines
Weaknesses
- Con: Git Sync limited to 3 users on the free plan
- Con: Mock server requests capped at 1,000/month on the free tier
- Con: Enterprise SSO (SAML/OIDC) only available on the $45/user/month plan
- Con: Desktop-only application, no browser-based or mobile client available
- Con: Some advanced features require a Kong account even for local-only usage
Key features
SoapUI
The world's most popular open-source API testing tool for REST, SOAP, and GraphQL.
SoapUI's pricing structure is quite generous with its robust free open-source option, offering significant value for individual developers and small teams.
Watch out
Potential for add-on features in ReadyAPI
Strengths
- Pro: Completely free and open-source
- Pro: Supports multiple API protocols
- Pro: Widely used and trusted in the API testing community
- Pro: Good for individual users and learning API testing fundamentals
Weaknesses
- Con: Limited automation capabilities (requires scripting)
- Con: No native CI/CD integrations
- Con: Data-driven testing not directly available
Key features
Plans and prices: Insomnia vs SoapUI
| Tool | Plans and prices | Source |
|---|---|---|
| Insomnia |
| insomnia.rest/pricing read Nov 2, 2026 |
| SoapUI |
| soapui.org read Oct 1, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Insomnia pricing and SoapUI pricing.
Key Takeaways
Insomnia
- Choose if you want API client for REST and GraphQL
SoapUI
- Choose if you want the world's most popular open-source API testing tool for REST, SOAP, and GraphQL
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- User ratings are within 0.2 points (4.4/5 from 21 reviews for Insomnia, 4.5/5 from 310 reviews for SoapUI).
- Insomnia starts at $12/user/mo, billed monthly; SoapUI has no public paid plan price on file.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Insomnia and SoapUI compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. User ratings are within 0.2 points (4.4/5 from 21 reviews for Insomnia, 4.5/5 from 310 reviews for SoapUI). Insomnia starts at $12/user/mo, billed monthly; SoapUI has no public paid plan price on file. Both have a free plan.
What are Insomnia and SoapUI used for?
Insomnia: API client for REST and GraphQL. SoapUI: The world's most popular open-source API testing tool for REST, SOAP, and GraphQL.
What does Insomnia cost vs SoapUI?
Insomnia's cheapest paid plan is Pro at $12/user/mo, billed monthly; it also has a free plan. SoapUI has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Nov 2, 2026.
What's the main difference between Insomnia and SoapUI?
Insomnia's main strength: supports 7+ API protocols in a single tool, no need for separate clients. SoapUI's main strength: completely free and open-source.