Postman 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 Postman 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:
Postman
API platform for building and using APIs
Best for you if:
- • You want supports virtually every API protocol in one unified interface
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 | Postman | SoapUI |
|---|---|---|
Starts at | Free plan, paid from $9/mo, billed monthly Solo plan | Free plan |
Category | API Tools Developer Tools | API Tools Testing & QA |
Rating | 4.6/5 G2 4.6 · Capterra 4.7 2,311 reviews | 4.5/5 Capterra 4.5 · G2 4.4 310 reviews |
Free plan | Yes | Yes |
Watch out for | AI credits are capped per tier (50-800/mo) with overage fees of $0.035-$0.05 per credit, can add 20-40% to monthly cost for heavy AI users | Potential for add-on features in ReadyAPI |
Choose Postman or SoapUI?
Choose Postman if
- You want supports virtually every API protocol in one unified interface
- You want generous free tier with unlimited collection runs and mock servers
Choose SoapUI if
- You want completely free and open-source
- You want supports multiple API protocols
In-Depth Analysis
Postman
API platform for building and using APIs
Postman's Free plan covers the API client, unlimited collection runs and mock servers.
Watch out
AI credits are capped per tier (50-800/mo) with overage fees of $0.035-$0.05 per credit, can add 20-40% to monthly cost for heavy AI users
Strengths
- Pro: Supports virtually every API protocol in one unified interface
- Pro: Generous free tier with unlimited collection runs and mock servers
- Pro: Industry-leading collaboration features for distributed teams
- Pro: Extensive ecosystem with pre-built integrations and community collections
- Pro: Built-in AI credits for generating tests, documentation, and queries
Weaknesses
- Con: Desktop app can consume significant memory with large collections
- Con: AI credit limits may feel restrictive on Free and Solo plans
- Con: Enterprise features like RBAC and audit logs require the highest tier
- Con: Steep learning curve for advanced features like Flows and monitoring
- Con: Cloud-first approach may concern teams with strict data residency needs
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: Postman vs SoapUI
| Tool | Plans and prices | Source |
|---|---|---|
| Postman |
| postman.com/pricing read Oct 31, 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 Postman pricing and SoapUI pricing.
Key Takeaways
Postman
- Choose if you want API platform for building and using APIs
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 (4.6/5 from 2,311 reviews for Postman, 4.5/5 from 310 reviews for SoapUI).
- Postman starts at $9/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 Postman 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 (4.6/5 from 2,311 reviews for Postman, 4.5/5 from 310 reviews for SoapUI). Postman starts at $9/mo, billed monthly; SoapUI has no public paid plan price on file. Both have a free plan.
What are Postman and SoapUI used for?
Postman: API platform for building and using APIs. SoapUI: The world's most popular open-source API testing tool for REST, SOAP, and GraphQL.
What does Postman cost vs SoapUI?
Postman's cheapest paid plan is Solo at $9/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 Oct 31, 2026.
What's the main difference between Postman and SoapUI?
Postman's main strength: supports virtually every API protocol in one unified interface. SoapUI's main strength: completely free and open-source.