Ace by DAISY
The facts below are what the maker publishes about Ace by DAISY, checked and dated. Our editors have not written about it yet.
Plans and prices
From Ace by DAISY's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Ace by DAISY | Free | Free, open source EPUB accessibility checker |
The facts
Each one read from Ace by DAISY's own pages, with the date it was checked.
What it does
- Audience
- DAISY describes Ace as suitable for publishing teams, third party vendors, self publishing authors, and others testing EPUB files without digital rights management.checked 11 Oct 2026
- Automated scans
- Yeschecked 23 Sep 2026
- Automated tests
- Ace runs automated accessibility tests on EPUB content documents.checked 11 Oct 2026
- CI/CD integration
- Yeschecked 23 Sep 2026
- Current release
- The Ace documentation identifies version 1.4.6 as the latest version.checked 11 Oct 2026
- Interfaces
- Ace can be used as a command line tool, a JavaScript Node module, or through an HTTP API.checked 11 Oct 2026
- Knowledge base
- The desktop app provides links to a local offline version of the DAISY Knowledge Base and an option to open its online version.checked 11 Oct 2026
- Languages
- The desktop app settings currently offer English and French.checked 11 Oct 2026
- Maintenance terms
- DAISY’s software terms say it has no obligation to provide maintenance, support, or updates for the software.checked 11 Oct 2026
- Manual review tools
- Yeschecked 23 Sep 2026
- Mobile testing
- Nochecked 23 Sep 2026
- Purpose
- Ace checks EPUB files for accessibility at any point in a publishing workflow and assists with evaluating conformance to the EPUB Accessibility Specification.checked 11 Oct 2026
- Remediation guidance
- Yeschecked 23 Sep 2026
- Report export
- The desktop app can export a report as a ZIP archive and rerun the evaluation.checked 11 Oct 2026
- Reports
- Ace generates an HTML report covering violations, metadata, document outlines, and images.checked 11 Oct 2026
- Security and privacy
- The command line documentation says Ace requires a modern Node.js runtime for security and performance reasons.checked 11 Oct 2026
- Support
- DAISY provides Ace support resources, including troubleshooting, FAQs, and contact links.checked 11 Oct 2026
- Technical requirements
- The command line tool requires Node.js 20 or later, with Node.js 22 recommended; its stated operating system requirements include Windows 10+, macOS High Sierra 10.13+, and 64-bit Linux distributions.checked 11 Oct 2026
- WCAG coverage
- other standardchecked 23 Sep 2026
Where it runs
- Browser extension
- Nochecked 23 Sep 2026
- Desktop app
- The official graphical app is available for Windows, macOS, and Linux, with installers for Intel and some ARM devices.checked 11 Oct 2026
The company
- Founded
- 1996checked 28 Sep 2026
- Headquarters
- Zurich, Switzerlandchecked 28 Sep 2026
Money
- Free plan
- Yeschecked 23 Sep 2026
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