vioscaleAI
Comparison

axe-core vs Stark

No clear leader: axe-core (57.6) and Stark (54.0) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

axe-core full profile →Stark full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
axe-core58
Stark54
Score
vioscaleAI score
axe-core58 / 100low · 35%
Stark54 / 100medium · 54%
Pricing
Free tier
axe-core✓
Stark✓
Model
axe-coreopen_source
Starkfreemium
Price level
axe-corefree
Starkhigh
Starting price
axe-core–
Stark$2,500
Transparent
axe-core✓
Stark✓
Integrations
Count
axe-core7
Stark3
Security
Disclosure policy
axe-core–
Stark✓
Gdpr
axe-core–
Stark✓
Scorecard
axe-core6.6
Stark–
Soc2
axe-core–
Stark✓
Trust center
Vulnerabilities
Adoption
Dependent repos
axe-core1,185,064
Stark–
Github stars
axe-core7,645
Stark–
Activity
Commits last 30d
axe-core64
Stark–
Release
Cadence days
axe-core50
Stark–
History
axe-core20 items
Stark–
License
Spdx
axe-coreMPL-2.0
Stark–
Language
Primary
axe-coreHTML
Stark–
Market
Availability
Content
Faq
axe-core6 items
Stark6 items

Capabilities

Feature-by-feature on the axes that matter for accessibility testing. “-” means undocumented, not absent.

Capabilities
Scan method
axe-coreAutomated rules engine
StarkAutomated rules engine
Wcag level
axe-coreAAA
StarkAA
Ci cd integration
axe-core✓
Stark✓
Browser extension
axe-core-
Stark✓
Design stage plugin
axe-core-
Stark✓
CMS plugins
axe-core-
Stark-
Continuous monitoring
axe-core-
Stark✓
Vpat acr generation
axe-core-
Stark✓
Manual audit service
axe-core-
Stark-
Overlay widget
axe-core-
Stark-
Document PDF testing
axe-core-
Stark-
Open source
axe-core✓
Stark-

What each one is

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

axe-core

An open-source testing library that automatically identifies accessibility problems in web interfaces by evaluating them against WCAG standards at multiple levels, designed to integrate with existing testing frameworks.

Independently observed

Stark

An end-to-end accessibility platform for designers, engineers, and QA teams. Provides WCAG audits, automated scanning via browser extensions and design plugins, continuous monitoring, and integration with development workflows across web and mobile platforms.

Independently observed

Pricing

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

axe-core

Open sourceFree tier
as of verify ↗

Stark

from $2500/yrSubscriptionFree tier

From $198/user/year (Premium Pack, minimum 3 seats) or from $2,500/year (Launch plan). Free tier available.

  • Premium Pack$198/user/year (minimum 3 seats)
    • Automated detection and remediation tooling (Figma only)
    • Automatic WCAG scans and reports in browser
    • Live code highlighting in browser web dev console
  • Launch$2,500/year
    • 25 viewers included
    • Monitor up to 100 pages
    • Weekly automated scans and reports
    • Supported assets: Figma, code repos, public URLs
    • 30-day report data storage
    • +1 more
  • Grow$8,000/year
    • 50 viewers included
    • Monitor up to 1000 pages
    • Daily scans and insight reports
    • Supported assets: Figma, code repos, CI/CD, iOS, Android, public and private URLs
    • 180-day report data storage
    • +4 more
  • ScaleContact sales
    • Unlimited viewers
    • Monitor up to 4000 pages
    • Real-time scans and insights reports
    • 365-day report data storage
    • Single Sign-On (SSO) and JIT provisioning
    • +3 more
as of verify ↗

Platform & deployment

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

Platforms
Web
axe-core✓
Stark✓
iOS
axe-core✗
Stark✓
Android
axe-core✗
Stark✓
macOS
axe-core✗
Stark✓
CLI
axe-core✗
Stark✓
Deployment
Cloud / SaaS
axe-core✗
Stark✓
Self-hosted
axe-core✓
Stark✗

Integrations

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

axe-core

7 total
  • VS Code (axe-linter extension)
  • npm/pnpm (package manager)
  • GitHub Actions
  • Puppeteer
  • Selenium
  • Jest
  • Testing frameworks
Independently observed

Stark

13 total
  • Figma
  • Sketch
  • GitHub
  • Chrome
  • Arc
  • Safari
  • Microsoft Edge
  • Brave
  • Storybook
  • React
  • iOS
  • Android
  • Claude
Independently observed
Still deciding?

axe-core or Stark: 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.