Comparison

Stoplight vs Swagger UI

On the evidence we track, Swagger UI leads this comparison with a composite score of 69/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Stoplight47
★Swagger UI69
Score
vioscaleAI score
Stoplight47 / 100medium · 61%
Swagger UI69 / 100medium · 68%
Pricing
Free tier
Stoplight✓
Swagger UI✓
Model
Stoplightcommercial
Swagger UIcommercial
Price level
Stoplightlow
Swagger UIfree
Transparent
Stoplight✓
Swagger UI✓
Integrations
Count
Stoplight7
Swagger UI3
Reliability
Status page
Stoplight✓
Swagger UI–
Adoption
Dependent repos
Stoplight0
Swagger UI60,531
Github stars
Stoplight872
Swagger UI29,027
Package downloads weekly
Stoplight–
Swagger UI129,984
Activity
Commits last 30d
Stoplight0
Swagger UI26
Release
Cadence days
Stoplight27
Swagger UI11
History
Stoplight20 items
Swagger UI20 items
License
Spdx
Stoplight–
Swagger UIApache-2.0
Language
Primary
Stoplight–
Swagger UIJavaScript
Content
Faq
Stoplight6 items
Swagger UI8 items

Capabilities

Feature-by-feature on the axes that matter for api development tools. “-” means undocumented, not absent.

Core
REST client
Stoplight✓
Swagger UI✓
GraphQL support
Stoplight✓
Swagger UI-
gRPC support
Stoplight-
Swagger UI-
Design
Mock servers
Stoplight✓
Swagger UI✓
Testing
Automated / contract testing
Stoplight-
Swagger UI✓
Collaboration
Team collaboration & sharing
Stoplight✓
Swagger UI✓
Docs
Doc generation
Stoplight✓
Swagger UI✓
Standards
OpenAPI / spec import
Stoplight✓
Swagger UI✓
Ops
CI integration / CLI
Stoplight✓
Swagger UI✓

What each one is

The product in its own terms, so the numbers below have context.

Stoplight

Stoplight is a design-first platform that facilitates collaborative API development, enabling teams to design APIs using OpenAPI specifications, generate interactive documentation, create mock servers, and enforce consistency standards across API programs.

Independently observed

Swagger UI

Leader

A tool that automatically transforms OpenAPI specifications into visual, interactive documentation allowing developers to explore and test API operations directly without implementing the backend. Works across browsers and deployment environments as a set of reusable web components.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Stoplight

from $11/moSubscriptionFree tier14-day trial

From $44/month billed annually. Free tier available with 14-day trials on paid plans.

  • FreeFree
    • API editor
    • OpenAPI/JSON schema visual designer
    • Code-based editing
    • Schema reuse
    • Design validation
    • +8 more
  • Basic$44/month (annual), first 3 users free, $11 per additional user/month
    • OpenAPI/JSON schema visual designer
    • Interactive docs
    • Instant mock servers
  • Startup$113/month (annual), first 8 users free, $11 per additional user/month
    • Private projects
    • Multi-branch support
    • Custom domains and theming
    • Google Analytics integration
    • Approved email domains
  • Pro Team$362/month (annual), first 15 users free, $22 per additional user/month
    • Up to 20 teams
    • Shared style guides
    • Workspace groups
    • Remove Stoplight branding
    • Self-hosted Git providers
    • +3 more
  • EnterpriseContact sales
    • Custom pricing
    • Unlimited projects and teams
    • Custom payment terms
    • Invoicing
    • Priority support
as of verify ↗

Swagger UI

Leader
from €21.20/moSubscriptionFree tier

From €21.20/user/month. Free tier available. Yearly billing offers 20% discount. Contact sales for Enterprise Plus.

  • Individual€21.20/user/month (20% discount for annual billing)
    • Catalog
    • Studio (Codegen, editor, form-based editor, 5 domains)
    • Portal (1 public product with SmartBear branding)
    • Contract testing (10 contracts, 10 AI credits)
    • Functional testing (50 test executions, test automation, CI/CD integration, assertions, reporting, sequential testing)
  • Team€32.34/user/month (20% discount for annual billing)
    • Catalog
    • Studio (Codegen, editor, form-based editor, 10 domains)
    • Portal (2 public products with SmartBear branding)
    • Contract testing (20 contracts, 10 AI credits per user, 1 System Account, 2 Webhooks)
    • Functional testing (50 test executions, test automation, CI/CD integration, assertions, reporting, sequential testing)
  • Enterprise€54.68/user/month (20% discount for annual billing)
    • Catalog
    • Studio (Standardization, unlimited domains)
    • Portal (5 public products with SmartBear branding)
    • Contract testing (50 contracts, 10 AI credits per user, 1 System Account, 50 Webhooks, RBAC)
    • Functional testing (100 test executions, test automation, CI/CD integration, assertions, reporting, sequential testing)
  • Enterprise PlusContact sales
    • Catalog
    • Studio (Standardization, unlimited domains, custom API templates)
    • Portal (Unlimited public and private products with full customization)
    • Contract testing (Unlimited contracts, 30 AI credits per user, Unlimited System Accounts, Unlimited Webhooks, RBAC)
    • Functional testing (Unlimited test executions, test automation, CI/CD integration, assertions, reporting, sequential & parallel testing)
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Stoplight✓
Swagger UI✓
macOS
Stoplight✓
Swagger UI✗
Windows
Stoplight✓
Swagger UI✗
Linux
Stoplight✓
Swagger UI✗
Deployment
Cloud / SaaS
Stoplight✓
Swagger UI✓
On-premise
Stoplight✓
Swagger UI✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (3)
  • GitHub
  • GitLab
  • Bitbucket

Stoplight

8 total - 5 not shared
  • Azure DevOps
  • Google Analytics
  • LDAP
  • SAML
  • Postman
Independently observed

Swagger UI

Leader
3 total - 0 not shared
  • GitHub
  • GitLab
  • BitBucket
Independently observed
Still deciding?

Stoplight or Swagger UI: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.