Stark

Designers can test text and UI colors against WCAG contrast requirements, preview a layout as people with different vision conditions would see it, and check touch target sizes. Annotation features let designers document focus order and alt text for developers. The browser extension reviews live pages.

Catching problems at the design stage is cheaper than fixing them after launch. Stark gives accessibility specialists a shared place to leave notes for design and engineering teams.

Free and paid plans exist, with team features on the paid ones. Axe DevTools and WAVE cover live-site testing. Stark suits designers and accessibility leads who want to start earlier in the process.