Tab Order / Focus Sequence Visualizer

The keyboard tab sequence is invisible — you can't see the order screen-reader and keyboard users actually follow. This tool maps the journey with numbered badges, arrow connectors, skip-link validation, and positive-tabindex warnings.

Web Accessibility Local processing Your markup stays in your browser. Nothing is uploaded.

Tool interface

Introduction

Keyboard and screen-reader users navigate by pressing Tab. If the sequence jumps around the page, the experience breaks. This tool makes the sequence visible so you can fix it before users hit it.

How it works

  • Renders your HTML in an isolated Shadow DOM so styles can't leak.
  • Computes the tab order from tabindex and DOM position.
  • Draws numbered badges and SVG arrows over each focusable element.
  • Validates skip-link targets and flags positive tabindex.
  • "Walk tab order" steps through the sequence with a highlight.

Privacy

All rendering and measurement is local. No upload, no account, no API key.

Limitations

  • Does not traverse Shadow DOM boundaries inside your pasted snippet.
  • Focusability heuristics follow standard selectors; exotic cases may vary.

FAQ

Why is positive tabindex bad?

It overrides the natural reading order and is fragile to maintain. Reorder the DOM instead.

Is my markup uploaded?

No. Everything runs locally in a sandboxed Shadow DOM.

Related tools

Version and changelog

  • Version: 1.0.0
  • Last updated: August 12, 2026
  • Changelog: Initial production release.