Freedom251 › Accessibility Testing Software
Aditus
What Aditus is
Aditus is a web-based accessibility tool that provides reports and guidance for addressing website issues. Its next-generation product is still in development, and the site invites visitors to join a waitlist for launch updates. Aditus says automated reports will continuously monitor accessibility problems, explain their effects on clients, and describe how to fix them. The service is intended for developers, designers, writers, and managers, with guidance related to WCAG 2.1, Section 508, and ADA compliance and to minimizing legal risk. A free Button Contrast Checker is available now. It scans webpage buttons and links in default, hover, and focus states, comparing button backgrounds with adjacent backgrounds for WCAG 2.1 contrast compliance. Each scan is saved at a unique URL that can be shared with a team or retained for later comparison. Aditus also provides on-site training and extensive accessibility audits. The company identifies Liliana and João as founders and describes itself as made in Porto, Portugal.
Who it suits
Aditus suits teams responsible for website accessibility, including developers, designers, writers, and managers. The free checker is useful for reviewing button and link contrast states.
What it does well
- Free Button Contrast Checker
- Checks default, hover, and focus states
- Saves results at shareable unique URLs
- Guidance references WCAG 2.1, Section 508, and ADA
- Offers training and accessibility audits
What to know first
- Next-generation product remains in development
- Main tool requires joining a launch waitlist
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Button Contrast Checker | Free tool · scans button and link contrast in default, hover, and focus states · saves and shares results by unique URL | Free |
As aditus.io lists them, read 13 Oct 2026. The maker's own page has the final word.
Verdict
Aditus combines a currently available contrast checker with a broader accessibility product still being developed. Its stated focus is reporting issues and guiding remediation for website teams.
Facts from Aditus's own pages
- Automated reports
- Aditus says automated reports continuously monitor accessibility issues, show their impact on clients, and explain how to fix them. · aditus.io, 12 Oct 2026
- Button checker
- The free Button Contrast Checker scans a webpage’s buttons and links for contrast compliance with WCAG 2.1. · aditus.io, 13 Oct 2026
- Button contrast checks
- The Button Contrast Checker tests webpage buttons and links in default, hover, and focus states for WCAG 2.1 contrast compliance. · aditus.io, 12 Oct 2026
- Checked states
- The checker tests default, hover, and focus states, and compares button backgrounds with adjacent backgrounds. · aditus.io, 13 Oct 2026
- Contrast comparison
- The checker compares button backgrounds with adjacent backgrounds. · aditus.io, 12 Oct 2026
- Core purpose
- Aditus describes its tool as providing accessibility reports and guidance on fixing website issues. · aditus.io, 12 Oct 2026
- Founded
- Aditus’s LinkedIn company page lists its founding year as 2019. · linkedin.com, 13 Oct 2026
- Founders
- The site identifies Liliana and João as founders. · aditus.io, 12 Oct 2026
- Headquarters
- Aditus’s LinkedIn company page lists its headquarters as Matosinhos, Porto. · linkedin.com, 13 Oct 2026
- Integrations
- The opened product pages do not state any integrations. · aditus.io, 13 Oct 2026
- Intended users
- Aditus says it aims to simplify accessibility work for developers, designers, writers, and managers. · aditus.io, 13 Oct 2026
- Launch status
- The homepage invites visitors to join a waitlist and says the team will get in touch when the tool launches. · aditus.io, 13 Oct 2026
- Location
- Aditus describes itself as made in Porto, Portugal. · aditus.io, 12 Oct 2026
- Monitoring
- The homepage says automated reports continuously monitor accessibility issues, explain their impact on clients, and show how to fix them. · aditus.io, 13 Oct 2026
- Other services
- Aditus says it provides on-site training and extensive accessibility audits. · aditus.io, 13 Oct 2026
- Product
- Aditus describes itself as an accessibility tool that provides website accessibility reports and guidance for fixing issues. · aditus.io, 13 Oct 2026
- Product status
- Aditus says its next-generation accessibility tool is in development and invites people to join a waitlist for launch. · aditus.io, 12 Oct 2026
- Security
- The opened product pages do not state security or compliance certifications. · aditus.io, 13 Oct 2026
- Shareable results
- The checker stores each page scan at a unique URL that users can share with their team or save for later comparison. · aditus.io, 12 Oct 2026
- Sharing results
- The checker stores each scan’s results at a unique URL that users can share or save for future comparisons. · aditus.io, 13 Oct 2026
- Standards
- The homepage says Aditus helps teams minimize legal risk and comply with WCAG 2.1, Section 508, and ADA. · aditus.io, 13 Oct 2026
Where Aditus stands on Freedom251
- Accessibility Testing Software#122 of 169