Ensuring an accessible and pleasant experience to all users, regardless of disability, is a key focus of Canvas. The Canvas platform was built using the most modern HTML and CSS technologies, and is committed to W3C's Web Accessibility Initiative and Section 508 guidelines. A General Design Guidelines for Accessibility lesson can be found in the Canvas Community site.
Due to Canvas' high accessibility standards, almost all content posted in Canvas (other than attached files) is accessible. Text that is typed into assignment directions or in a page still needs to follow accessibility guidelines such as the use of headers and alt text. In October 2017, Canvas added an Accessibility Checker tool/button to the Rich Content Editor (similar to Word).