UD5 Toolkit
Focus Order Analyzer - Online Tab Navigation Check
Enter a URL and extract tab‐index order violations and focusable elements. Quick accessibility audit. Client‑side fetch.
Tab Order Visualizer - Online See Focus Navigation Path
Tab Order Visualizer
Analyze and visualize the keyboard focus navigation (tab order) of any HTML snippet or webpage. Improve accessibility and user experience.
Note: Cross-origin restrictions may prevent loading. If it fails, try pasting HTML instead.
Badge Color
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Frequently Asked Questions
Tab order refers to the sequence in which elements receive keyboard focus when a user presses the Tab key. It's crucial for web accessibility, ensuring keyboard‑only users (including those with motor disabilities) can navigate and interact with your site efficiently. A logical tab order improves usability for everyone.
The
tabindex attribute controls whether an element can be focused and its order in the tab sequence. Setting tabindex="0" makes an element focusable in its natural DOM order. A positive integer (e.g., tabindex="1") forces that element to be focused first, before elements without a positive tabindex. Using positive tabindex is discouraged because it can create a confusing navigation order. tabindex="-1" makes an element focusable via JavaScript but removes it from the keyboard tab sequence.
Simply paste your HTML code into the provided text area or enter the URL of your webpage (if accessible without CORS restrictions). Click "Visualize Tab Order" and the tool will analyze all focusable elements, display numbered badges on each item according to their tab sequence, and report the total count. This helps you verify that the keyboard navigation follows a logical flow.
By default, the following elements can receive keyboard focus:
<a> with href, <button>, <input> (not hidden), <select>, <textarea>, and elements with contenteditable="true". Additionally, any element with a tabindex attribute set to a non‑negative number becomes focusable.
Web browsers enforce the same-origin policy for security reasons, which prevents a page from accessing the DOM of another domain. If you want to analyze an external website, use the HTML snippet method by copying the page's source code. For local or same‑origin development the URL feature should work fine. Also ensure the URL is accessible and does not block loading via
X‑Frame‑Options or similar headers.
Yes, you can customize the badge color using the color picker in the options panel. This helps you see the indicators more clearly against different page backgrounds. The numbered circles will appear at the top‑left corner of each focusable element.
Tab Focus Order Checker - Online Visualize Tab Navigation Flow
Paste HTML and see the order in which elements would receive focus via Tab key. Highlight issues. Local accessibility testing.
Pomodoro Playlist Linker – Attach a Lo‑Fi Playlist to Each Timer
Set a custom YouTube or Spotify playlist URL that auto‑plays when your focus session starts and pauses on breaks. Combine productivity with your favorite tunes.
Typing Layout Visualizer – QWERTY, Dvorak, Colemak
Compare standard keyboard layouts side-by-side. Click keys to see characters. Useful for learning alternative layouts.
Ambient Focus Sound Mixer – Online Rain, Fire, Cafe, Waves
Mix multiple ambient sounds (rain, fireplace, coffee shop) to create your perfect productive background.
Text to Braille Converter - Online Grade 1 & 2 English
Convert English text to Braille (Grade 1 and simple Grade 2 contractions). Educational tool to understand Braille representation. Local only.
Live Site Contrast Checker - Online Audit By URL
Enter a URL and fetch its text/background colors to perform a bulk contrast check. See warnings for WCAG violations.
aria‑describedby Visualizer - Online Check Descriptions
Highlight elements with aria‑describedby and see the linked description text. Verify a11y annotations.
APCA Contrast Checker - Online New Accessible Perceptual Contrast
Check the Accessible Perceptual Contrast Algorithm (APCA) ratio. The next‑generation contrast method for WCAG 3.
Landmark Region Viewer - Online See ARIA Landmarks of Any Page
Enter a URL and see a list of its ARIA landmarks (banner, main, nav). Check document structure for accessibility. Local fetch.
Color Contrast Ratio Tester - Online WCAG AA/AAA Check
Enter foreground and background colors to instantly see the contrast ratio and pass/fail for AA and AAA. Simple and fast.
Roving Tabindex Keyboard Nav - Online Accessible List
See the roving tabindex pattern in action. Use arrow keys to navigate a list. Copy the accessible JavaScript pattern.
Heading Structure Visualizer - Online Document Outline Check
Paste an URL or HTML and see the h1‑h6 hierarchy as a tree. Detect skipped levels and improve accessibility. Client‑side.
Pomodoro Timer with History - Online Track Focus Sessions
Pomodoro timer that saves completed sessions to localStorage. View daily/weekly stats. Boost productivity with data.
Web MIDI Keyboard Tester - Online Visual Note Display
Connect your MIDI keyboard and see pressed notes visually on a piano roll. Check velocity, channel, and aftertouch. No DAW needed.
Keyboard Event Viewer - Online key, code, keyCode Inspector
Press any key to see the complete KeyboardEvent properties: key, code, keyCode, modifiers. Indispensable for game & shortcut developers.
Random Color Flash - Online Meditation & Focus Light
Full‑screen random colour changes at a slow pace. Use it as a dynamic background for meditation or focus.
Weekly Focus Planner - Online One Page Goal Sheet
Set three big tasks for the week, top priority, habit trackers, and notes. Print or screenshot. Minimalist.
Keyboard Layout Tester - Online Visual Key Press Viewer
Press any key and see it light up on a standard QWERTY layout. Check functionality or demonstrate shortcuts.
Accessible Color Contrast Finder - Online WCAG 2.1 Helper
Given a background color, this tool suggests foreground colors that meet AA/AAA contrast ratios. Works for all vision types.
Perceived Brightness Calculator - Online Luminance Formula
Calculate the perceived brightness of an RGB color and determine if black or white text is more readable. Accessibility tool.
Braille to Text Converter - Online Decode Dot Patterns
Enter Braille dot numbers (1‑6) or paste Unicode Braille to decode into English text. Companion to text‑to‑Braille.
Pomodoro Timer with Lo‑Fi Music - Online Focus Beats
Pomodoro timer with built‑in lo‑fi music playlist (synthetic). Focus and rest cycles. No copyright music; generated tones.
Binaural Beats Generator - Online Brainwave Focus & Relax
Create binaural beats by setting base frequency and beat frequency. Use headphones. For relaxation or focus. Web Audio API.
Online Piano Keyboard - Play & Record Simple Melodies
Play a virtual piano keyboard using mouse or computer keys. Sustain and octave control. Record and play back your tune.
Virtual Keyboard Tester - Online Check All Keys Functionality
Press keys on your physical keyboard and see them highlighted on a virtual keyboard. Detects multi-key rollover. Quick hardware check.
Pomodoro Task List - Online Focus Timer with To-Do
Combine a Pomodoro timer with a simple task list. Assign estimated Pomodoros to tasks and track completions. Boost focus and get things done.
Color Blindness Simulator - Online Vision Deficiency Preview
Simulate how images and UI elements appear to users with various types of color blindness. Upload or paste image URL. Promote inclusive design.
Pomodoro Timer - Online Focus & Productivity Countdown
Boost your productivity with the Pomodoro technique. Customizable work and break intervals with desktop notifications. Simple, clean, and works offline.
JavaScript Keycode Finder - Online Keyboard Event Tool
Press any key to see the corresponding JavaScript event key, code, and keyCode. An essential debugging tool for front-end developers handling keyboard input.