About
Deque Systems is the world's leading digital accessibility company, powering accessibility testing through its flagship axe platform. At its core is axe-core, the open-source accessibility engine downloaded over 3 billion times and used as the de facto standard across the industry. The platform spans the full development lifecycle: Axe DevTools enables automated web and mobile accessibility testing integrated into existing test stacks, finding and fixing up to 80% of issues automatically. Axe MCP Server allows developers to receive one-click accessibility fixes directly in their IDE. Axe Linter provides static code analysis—like a spellchecker for accessibility—within VS Code. Axe Monitor delivers site-wide scanning, reporting, and governance dashboards for compliance visibility. Axe Auditor supports systematic manual testing, while Axe Assistant is an expert-backed AI chatbot for accessibility guidance. Beyond tooling, Deque offers expert-led accessibility audits, VPAT documentation, and consulting services, plus Deque University—the world's leading role-based accessibility training platform with over 200,000 trained professionals. Whether you're a developer catching issues early in the IDE, a QA engineer running automated test suites, a compliance officer monitoring an entire digital estate, or a designer learning accessibility best practices, Deque's platform scales to meet your needs. Recognized as a Leader in the Forrester Wave: Digital Accessibility Platforms, Q4 2025.
Key Features
- Automated Accessibility Testing: Axe DevTools integrates with web and mobile test stacks to automatically detect and fix up to 80% of accessibility issues, reducing manual effort and accelerating compliance.
- IDE-Integrated Fixes with Axe MCP Server: Developers receive one-click accessibility fix suggestions directly inside their IDE, eliminating context switching and enabling shift-left accessibility practices.
- Site-Wide Monitoring & Reporting: Axe Monitor continuously scans entire digital properties, providing governance dashboards, trend tracking, and business intelligence to maintain and demonstrate compliance over time.
- Expert Audits & VPAT Support: Deque's team of experts delivers comprehensive manual accessibility audits, VPAT documentation, and consulting support to meet procurement and legal compliance requirements.
- Role-Based Accessibility Training: Deque University offers self-paced and instructor-led courses tailored to developers, designers, QA, and content teams—over 200,000 professionals trained to date.
Use Cases
- A development team integrates Axe DevTools into their CI/CD pipeline to automatically catch and block accessibility regressions before they reach production.
- A compliance officer uses Axe Monitor to continuously scan a large enterprise website portfolio, tracking WCAG conformance scores and generating audit-ready reports.
- A front-end developer installs the Axe DevTools Chrome Extension and Axe Linter in VS Code to identify and fix accessibility issues during local development without leaving the IDE.
- A government agency commissions a Deque accessibility audit and VPAT to meet ADA and Section 508 procurement requirements for a newly launched digital service.
- An enterprise L&D team enrolls cross-functional employees—designers, writers, and engineers—in Deque University to build organization-wide accessibility knowledge and reduce compliance risk.
Pros
- Industry-Standard Engine: Built on axe-core, the most widely trusted open-source accessibility engine with 3 billion+ downloads, ensuring reliable and consistent rule coverage.
- Full Development Lifecycle Coverage: From static linting and IDE fixes to automated testing, manual auditing, and ongoing monitoring, Deque covers every stage where accessibility issues can be caught and resolved.
- Free Tools Available: axe-core, the Axe DevTools Chrome Extension, and the Axe Linter VS Code extension are freely available, giving teams a strong starting point at no cost.
- Recognized Market Leader: Named a Leader in the Forrester Wave: Digital Accessibility Platforms Q4 2025, backed by deep domain expertise and a large portfolio of enterprise customers.
Cons
- Enterprise Pricing Complexity: Full platform access—including Axe Monitor, Axe Auditor, and professional services—requires enterprise licensing that may be cost-prohibitive for small teams or individual developers.
- Primarily Developer-Focused: While training resources exist for all roles, the core tooling assumes familiarity with development workflows and test pipelines, which can create a learning curve for non-technical stakeholders.
- Automated Testing Has Limits: Even with up to 80% automated issue detection, a meaningful portion of accessibility defects still require expert manual review, meaning the platform is not a fully hands-off solution.
Frequently Asked Questions
What is axe-core and is it free?
axe-core is Deque's open-source accessibility testing engine that powers the entire axe platform. It is completely free, open-source, and available on npm. It has been downloaded over 3 billion times and is the industry standard for automated accessibility rule checking.
How much of accessibility testing can Axe DevTools automate?
Axe DevTools can automatically detect and flag up to 80% of accessibility issues across web and mobile applications. The remaining issues typically require guided manual testing or expert review, which the platform also supports through Axe Auditor and professional audit services.
What compliance standards does the Deque platform support?
Deque supports a wide range of accessibility standards and regulations including WCAG (2.0, 2.1, 2.2), ADA, Section 508, EAA (European Accessibility Act), CVAA, and supports VPAT generation for procurement purposes.
What is the Axe MCP Server?
Axe MCP Server is an IDE integration that uses AI to provide one-click accessibility fix suggestions directly within a developer's coding environment. It removes the need to switch between tools, enabling developers to address accessibility issues as they write code.
Does Deque offer training for non-developers?
Yes. Deque University provides role-based training tailored for developers, designers, content creators, QA engineers, and accessibility program managers. Courses are available in both self-paced on-demand formats and live instructor-led sessions.
