daisy/ace

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Ace by DAISY, an Accessibility Checker for EPUB

Stars: 98
Forks: 29
Open beginner issues: 0
Indexed issues: 106

Dominant language: JavaScript
License: MIT
Last GitHub push: May 1, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted
PR merge metrics: No merged PRs in 30d

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106 open issues indexed

Add an option to display the list of rules Open

backlog feature

daisy/ace#14 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
line and column locators Open

enhancement help wanted

daisy/ace#20 · 4 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Add basic support for EPUB 2.0.1 Open

backlog feature needs review

daisy/ace#21 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
analyze accessibility metadata Open

backlog enhancement needs review

daisy/ace#35 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Report the name of an invalid ARIA Role Open

enhancement

daisy/ace#38 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add support for checking single HTML file(s) Open

feature waiting for feedback

daisy/ace#43 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add integration tests for concurrent runs of Ace Open

tests

daisy/ace#68 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Document EPUB-specific rules in ACT format Open

doc rules

daisy/ace#69 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
EPUB metadata parsing is very naïve Open

backlog enhancement

daisy/ace#72 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Mock FS operations in integration tests? Open

backlog help wanted tests

daisy/ace#73 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Improve build of browser scripts Open

refactoring tooling

daisy/ace#74 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
extract stats in the report? Open

feature rules

daisy/ace#78 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Provide a hook to define custom Ace rules Open

feature rules

daisy/ace#84 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Report some `epub:type`s in the data section? Open

backlog needs review rules

daisy/ace#87 · 7 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Extract outlines as JSON structures Open

feature

daisy/ace#89 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Generate EPUB Annotations for violations Open

feature report

daisy/ace#107 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Add sectioning element names to the HTML outline Open

enhancement feature

daisy/ace#110 · 1 comment · 2 reactions · 1 assignee · Indexed Sep 15, 2026
em to pt conversion for color contrast check Open

backlog needs review

daisy/ace#111 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Feature: Include Image Column "Presentation" Open

daisy/ace#127 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Implement a smarter heading content extraction in the outline Open

backlog enhancement extraction

daisy/ace#132 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Write automated tests for http api Open

backlog httpapi tests

daisy/ace#142 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add tests to report generation tests Open

backlog tests

daisy/ace#143 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
override the default configuration Open

daisy/ace#150 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Feature Request: Include content counts Open

daisy/ace#152 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
script error on website Open

daisy/ace#162 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
website TOC generation Open

daisy/ace#163 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Feature Request: HTML output minor improvements Open

daisy/ace#164 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Feature request: Plain text console output Open

daisy/ace#167 · 5 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Support private language tags Open

daisy/ace#169 · 3 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Review metadata parsing Open

daisy/ace#172 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Make the viewport’s size configurable Open

enhancement feature

daisy/ace#173 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Fixed layout should be advised Open

daisy/ace#177 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
End of console output add # of issues found Open

daisy/ace#181 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Installation on Linux Mint 18.3 fails with ELIFECYCLE / puppeteer error Open

doc

daisy/ace#183 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Permission Denied Open

waiting for feedback

daisy/ace#185 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add Summary of Violations info into the JSON report Open

daisy/ace#191 · 0 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Feature request: Adding filename of Content Documents in HTML outline Open

daisy/ace#193 · 0 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Feature request: Adding tags of sectioning elements to the HTML outline Open

daisy/ace#194 · 0 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Feature request: source code snippets for EPUB specific rules/Ace rules in the report Open

daisy/ace#195 · 0 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
repetition of error lines about contrast color in the report Open

enhancement report

daisy/ace#197 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Metadata coherence AccesMode Open

feature

daisy/ace#199 · 24 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Metadata coherence accessModeSufficient Open

feature

daisy/ace#200 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Title and edition of the book seems to be repeated in the Report Open

daisy/ace#205 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Name the Report with ISBN # (or Title if no ISBN # is present) Open

enhancement report

daisy/ace#208 · 1 comment · 2 reactions · 1 assignee · Indexed Sep 15, 2026
ERROR: Not found Open

daisy/ace#210 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Identify EPUB version Open

daisy/ace#213 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
non-(X)HTML extension => file copy to TMP folder ... this breaks relative URLs to CSS, images, etc. Open

daisy/ace#243 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Adapting the web site to the GUI Open

daisy/ace#244 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Localization: internal change - include the language name (expressed in that same language) in the locale's JSON resource Open

daisy/ace#247 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Localization: internal change - use the "meta" package to specify the list of supported languages for all 3 currently-localized packages Open

daisy/ace#248 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

daisy/ace

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