I've been using this personally for about a year, but today marks the first public release of Koa11y; and with it, lots of polish to allow for easy usage by the general public.
Major features:
Runs on Windows, Linux (32 and 64-bit), and OSX.
A simple UI to interact with the Pa11y command line application.
Generates reports in HTML, JSON, CSV, Markdown, and XML.
HTML reports are completely self contained and make only one network request for a webfont. All styles, scripts, and icons are embedded in the report, making the document easy to transfer/send/share.
HTML reports allow you to show/hide Errors/Warnings/Notices easily.
Supports WCAG2 A, WCAG2 AA, WCAG2 AAA, and Section 508 accessibility standards/guidelines.
Produces image statistics such as total file size, alt text length, failed-to-load, and allows for human interaction to verify if alt text is descriptive.
Missing Features
Image stats are exported with HTML, JSON, Markdown, and XML, however I couldn't find a way to structure the data to work with CSV. Will accept pull request.
When verifying if the images have descriptive alt text, the process feels slow and could be improved, allowing for faster confirmation of images. The current system is function but it's UX could be improved. A discussion should be had about how to proceed on this in the GitHub Issues page if we were to attempt to improve this.
