Freedom251 › Accessibility Testing Software
axesCheck
by axesCheck
What axesCheck is
axesCheck is a free web-based PDF accessibility checker from axesCheck, a maker headquartered in Zurich, Switzerland, and working on digital accessibility since 2015. It uses PAC to examine machine-verifiable PDF/UA requirements under the Matterhorn Protocol and WCAG levels A and AA. PDF/UA checks cover basic PDF rules, logical structure, metadata, and document settings. WCAG checks include text alternatives, contrast, content access, titles, tab order, natural languages, and Unicode equivalents. You upload PDFs through a browser, with files limited to 10 MB. The service works on Windows, Mac, Linux, laptops, and smartphones, with listed platforms including Android, iOS, Linux, macOS, web, and Windows. Scanning is automated. The maker recommends human checks for reading order, tag semantics, and whether image alternative text conveys meaning. There are no manual review tools, mobile testing, browser extension, CI/CD integration, or remediation guidance. Uploaded documents may be transferred to axes4 and temporarily stored for troubleshooting and technical improvement.
Who it suits
It suits organisations and individuals needing automated PDF accessibility checks in a browser. Human review is still needed for reading order, tag semantics, and meaningful image alternatives.
What it does well
- Free plan with 0.00 USD pricing
- Checks PDF/UA and WCAG A and AA requirements
- Works on computers and smartphones
- Accepts uploads up to 10 MB
- Automated checks cover structure and metadata
What to know first
- No manual review tools
- No remediation guidance
- Uploaded documents may be temporarily stored
- Human checks remain necessary
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| axesCheck | PDF uploads up to 10 MB | Free |
As check.axes4.com lists them, read 11 Oct 2026. The maker's own page has the final word.
Verdict
axesCheck provides free automated checks for machine-verifiable PDF accessibility requirements across common browsers and devices. It is best used alongside human review because several accessibility qualities are outside its automated scope.
Facts from axesCheck's own pages
- Automated scans
- Yes · check.axes4.com, 23 Sept 2026
- Browser and devices
- The maker says axesCheck works in a browser on Windows, Mac, Linux, laptops, and smartphones. · axes4.com, 11 Oct 2026
- Browser extension
- No · check.axes4.com, 23 Sept 2026
- CI/CD integration
- No · check.axes4.com, 23 Sept 2026
- Document handling
- By using axesCheck, users agree that uploaded documents and their contents may be transferred to axes4 for processing; axes4 may temporarily store and analyze documents for troubleshooting and technical improvement. · check.axes4.com, 11 Oct 2026
- Founded
- 2015 · check.axes4.com, 28 Sept 2026
- Free plan
- Yes · check.axes4.com, 23 Sept 2026
- Headquarters
- Zurich, Switzerland · check.axes4.com, 28 Sept 2026
- Human review
- The maker recommends additional human checks for reading order, tag semantics, and whether image alternative text conveys meaning. · check.axes4.com, 11 Oct 2026
- Integrations
- The maker describes axesCheck as a web app; its separate axesPAC product is the product identified for API integration into processes, systems, or software. · axes4.com, 11 Oct 2026
- Intended users
- axes4 lists government agencies, education and research organizations, companies, design and communications agencies, freelancers, and IT companies among its customers. · axes4.com, 11 Oct 2026
- Maker history
- axes4 says it has been working on digital accessibility since 2015. · axes4.com, 11 Oct 2026
- Maker location
- axes4 GmbH lists its address as Zurich, Switzerland. · axes4.com, 11 Oct 2026
- Manual review tools
- No · check.axes4.com, 23 Sept 2026
- Mobile testing
- No · check.axes4.com, 23 Sept 2026
- PDF/UA checks
- Its PDF/UA checks cover basic PDF rules, logical structure, metadata, and settings. · check.axes4.com, 11 Oct 2026
- Purpose
- axesCheck is a web based PDF accessibility checker based on PAC. · check.axes4.com, 11 Oct 2026
- Remediation guidance
- No · check.axes4.com, 23 Sept 2026
- Security
- axes4's support security page states that no security incidents are known at present. · support.axes4.com, 11 Oct 2026
- Standards
- It checks machine verifiable PDF/UA requirements according to the Matterhorn Protocol and WCAG levels A and AA. · check.axes4.com, 11 Oct 2026
- Support
- The maker's site links to axes4 support, manuals, videos, and a community. · axes4.com, 11 Oct 2026
- Upload limit
- The checker accepts PDF uploads up to 10 MB. · check.axes4.com, 11 Oct 2026
- WCAG checks
- Its WCAG checks include text alternatives, contrast, content access, titles, tab order, natural languages, and Unicode equivalents. · check.axes4.com, 11 Oct 2026
- WCAG coverage
- other standard · check.axes4.com, 23 Sept 2026
Where axesCheck stands on Freedom251
- Accessibility Testing Software#52 of 169