UD5 Toolkit
Live Website Color Blindness Simulator – Enter URL
Enter any live URL and view it through eight different color vision deficiency filters. Identify contrast issues and improve your site’s accessibility.
Tag: Live Data Feed Viewer
11+ toolsMedia Query Live Tester - Online Resize & See Results
Write a media query and see if it matches as you resize the iframe. Understand width, height, and resolution queries.
QR Code Scanner from Camera - Online Live Decode in Browser
Scan QR codes using your device camera. Decodes text, URLs, and Wi‑Fi credentials directly in the browser. No data sent to server.
Webcam Color Detector - Online Live Hue Picker
Point your camera at an object and see the dominant color in real time. Click to copy the hex. Fun tool for designers.
Scroll Position Monitor - Online Live Scroll Top/Left
See a live readout of window scrollX and scrollY. Visualize scroll direction. For debugging sticky navs.
Live Binary Clock - Online Hex & Decimal Time
See the current time displayed in binary and hexadecimal. Dark theme, full‑screen mode. A geeky desk decoration.
Audio Visualizer Bars - Online Live FFT Spectrum
Play an audio file or use mic to see real‑time frequency bars. Choose colors. Great for music videos. Canvas.
Speech Live Counter - Online Count Spoken Words
Speak into the mic and see a live transcript with word count. Uses the Web Speech API. Nothing is stored.
Scan Barcode from Camera - Online Live UPC/EAN Reader
Point your camera at a barcode and decode it live. Works with multiple formats. Pure JavaScript barcode detection.
ISS Tracker - Online Live Where is Space Station
See the International Space Station’s current position on a world map in real time. Uses public API. No refresh.
Recent Earthquake Tracker - Online USGS Live Data Map
View recent earthquakes worldwide on a map. Fetches public USGS GeoJSON feed directly from browser. Real-time data.