Show HN: Tab Trail, a bookmarklet that draws a page's tab order and finds gaps

Category: devtools

Tags: accessibility, wcag, bookmarklet, testing, browser-extension

Score: 7.5/10 (Innovation: 6, Technical: 8, Documentation: 9, Utility: 7)

Tab Trail is a bookmarklet that visualizes a page's keyboard tab order and flags WCAG 2.2 AA violations such as missed clickable elements, hover-only menus, and keyboard traps. It combines DOM traversal, CSS analysis, and focus state tracking to detect accessibility gaps that tools like Lighthouse can't automate. The project ships with a programmatic API for CI and AI agents, extensive documentation, and a Playwright integration example.

Target audience: frontend devs, accessibility testers, QA engineers

Repository: https://matjazkorosec.com/tools/tab-trail · JavaScript · MIT · 1 stars

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