Comparison

Scalar 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.

Scalar full profile →Swagger UI full profile →

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.

Scalar63

★Swagger UI69

Attribute comparison across 2 tools
Attribute	Scalar	Swagger UILeader
vioscaleAI score	63 / 100medium · 70%	69 / 100medium · 68%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	freemium	commercial
Price levelpricing.price_level	high	free
Starting pricepricing.starting_price	$150	-
Transparentpricing.transparent	✓	✓
Integrations
Countintegrations.count	4	3
Security
Certificationssecurity.certifications	SOC 2 Type 1	-
Disclosure policysecurity.disclosure_policy	✓	-
Fedrampsecurity.fedramp	-	✓
Gdprsecurity.gdpr	✓	✓
Hipaasecurity.hipaa	-	✓
Scorecardsecurity.scorecard	-	7.3
Soc2security.soc2	✓	✓
Trust centersecurity.trust_center	https://scalar.com/security	-
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40scalar%2Fuse-modal&per_page=100 · Last 12m: 0	Count: 2 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=swagger-ui-dist&per_page=100 · Last 12m: 0 · Max severity: MODERATE
Reliability
Status pagereliability.status_page	✓	-
Adoption
Dependent reposadoption.dependent_repos	1	60,531
Github starsadoption.github_stars	16,253	29,027
Package downloads weeklyadoption.package_downloads_weekly	1,422,867	129,984
Activity
Commits last 30dactivity.commits_last_30d	100	26
Release
Cadence daysrelease.cadence_days	3	11
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	MIT	Apache-2.0
Language
Primarylanguage.primary	TypeScript	JavaScript
Market
Availabilitymarket.availability	Available worldwide · Popular in US	Available worldwide · Popular in US, EU, AU · HQ US
Content
Faqcontent.faq	7 items	8 items

Score

vioscaleAI score

Scalar63 / 100medium · 70%

Swagger UI69 / 100medium · 68%

Pricing

Free tier

Scalar✓

Swagger UI✓

Model

Scalarfreemium

Swagger UIcommercial

Price level

Scalarhigh

Swagger UIfree

Starting price

Scalar$150

Swagger UI–

Transparent

Scalar✓

Swagger UI✓

Integrations

Count

Scalar4

Swagger UI3

Security

Certifications

ScalarSOC 2 Type 1

Swagger UI–

Disclosure policy

Scalar✓

Swagger UI–

Fedramp

Scalar–

Swagger UI✓

Gdpr

Scalar✓

Swagger UI✓

Hipaa

Scalar–

Swagger UI✓

Scorecard

Scalar–

Swagger UI7.3

Soc2

Scalar✓

Swagger UI✓

Trust center

Scalarhttps://scalar.com/security

Swagger UI–

Vulnerabilities

ScalarCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40scalar%2Fuse-modal&per_page=100 · Last 12m: 0

Swagger UICount: 2 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=swagger-ui-dist&per_page=100 · Last 12m: 0 · Max severity: MODERATE

Reliability

Status page

Scalar✓

Swagger UI–

Adoption

Dependent repos

Scalar1

Swagger UI60,531

Github stars

Scalar16,253

Swagger UI29,027

Package downloads weekly

Scalar1,422,867

Swagger UI129,984

Activity

Commits last 30d

Scalar100

Swagger UI26

Release

Cadence days

Scalar3

Swagger UI11

History

Scalar20 items

Swagger UI20 items

License

Spdx

ScalarMIT

Swagger UIApache-2.0

Language

Primary

ScalarTypeScript

Swagger UIJavaScript

Market

Availability

ScalarAvailable worldwide · Popular in US

Swagger UIAvailable worldwide · Popular in US, EU, AU · HQ US

Content

Faq

Scalar7 items

Swagger UI8 items

Capabilities

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

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

Core

REST client

Scalar✓

Swagger UI✓

GraphQL support

Scalar✓

Swagger UI-

gRPC support

Scalar✓

Swagger UI-

Design

Mock servers

Scalar✓

Swagger UI✓

Testing

Automated / contract testing

Scalar✓

Swagger UI✓

Collaboration

Team collaboration & sharing

Scalar✓

Swagger UI✓

Docs

Doc generation

Scalar✓

Swagger UI✓

Standards

OpenAPI / spec import

Scalar✓

Swagger UI✓

Ops

CI integration / CLI

Scalar✓

Swagger UI✓

What each one is

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

Scalar

A platform that creates API documentation, type-safe client libraries, and AI-ready tools from OpenAPI documents, ensuring all developer interfaces stay synchronized as APIs evolve.

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.

Scalar

from $150/moSubscriptionFree tier

Free tier available. From $150/month for Pro or $600/month for Business, with yearly billing discounts (2 months free).

FreeFree
- Hosted OpenAPI docs
- Built-in API client
- Landing pages
- 1 editor seat
Pro$150/month or $125/month billed yearly ($1,500/year)
- Hosted MCP servers
- 5 editor seats
- Access groups included
- Volume discounts available
Business$600/month or $500/month billed yearly ($6,000/year)
- SSO and subpath hosting
- 10 editor seats
- Volume discounts available
EnterpriseContact sales
- Unlimited APIs and custom SDK sizes
- Priority support and SLAs
- SDK and MCP migration services
- Dedicated Slack/Teams channel

as of 2026-09-10verify ↗

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 2026-08-05verify ↗

Platform & deployment

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

Platform and deployment support comparison
Supports	Scalar	Swagger UI
WebPlatforms	✓	✓
macOSPlatforms	✓	✗
WindowsPlatforms	✓	✗
LinuxPlatforms	✓	✗
CLIPlatforms	✓	✗
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✓	✗
On-premiseDeployment	✗	✓

Platforms

Web

Scalar✓

Swagger UI✓

macOS

Scalar✓

Swagger UI✗

Windows

Scalar✓

Swagger UI✗

Linux

Scalar✓

Swagger UI✗

CLI

Scalar✓

Swagger UI✗

Deployment

Cloud / SaaS

Scalar✓

Swagger UI✓

Self-hosted

Scalar✓

Swagger UI✗

On-premise

Scalar✗

Swagger UI✓

Integrations

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

In common (1)

GitHub

Scalar

12 total - 11 not shared

Agent
FastAPI
ASP.NET Core
Hono
Elysia
Hapi
Docker
Docusaurus
Vercel AI SDK
OpenAI Agents SDK
Anthropic Claude Agent SDK

Independently observed

Swagger UI

Leader

3 total - 2 not shared

GitLab
BitBucket

Independently observed

Still deciding?

Scalar 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.