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.
UD5 Toolkit
Firefox does not currently support the SpeechRecognition API. The tool requires HTTPS or localhost to access the microphone.
Most professional speakers aim for 130–160 WPM for clear, engaging delivery.
Enter any live URL and view it through eight different color vision deficiency filters. Identify contrast issues and improve your site’s accessibility.
Convert your word count into an estimated speaking time based on average words per minute. Adjust the pace for slow, normal, or fast speakers to plan presentations perfectly.
Paste your script and get an approximate speech duration based on slow/average/fast pace. Avoid overtime.
Paste your speech, set time limit, and practice with a pacing indicator (words per minute). Refine delivery.
Scan QR codes using your device camera. Decodes text, URLs, and Wi‑Fi credentials directly in the browser. No data sent to server.
Write a media query and see if it matches as you resize the iframe. Understand width, height, and resolution queries.
See a live readout of window scrollX and scrollY. Visualize scroll direction. For debugging sticky navs.
Play an audio file or use mic to see real‑time frequency bars. Choose colors. Great for music videos. Canvas.
Point your camera at an object and see the dominant color in real time. Click to copy the hex. Fun tool for designers.
See the current time displayed in binary and hexadecimal. Dark theme, full‑screen mode. A geeky desk decoration.
Use SSML <mark> tags to fire events during TTS. See text highlighted as it is spoken. Understand speech synthesis timing. local.
Write SSML to control pitch, speed, and breaks. Play the generated speech with the browser’s TTS engine. Learn SSML.
Drop a PDF and count the total words, characters, and pages. Text extraction is done locally. Privacy‑friendly.
Paste any text and have it read aloud while each spoken word is highlighted. Improve reading focus. Web Speech API.
Use the Web Speech API to turn your spoken words into text with punctuation. Copy and paste anywhere. Privacy‑first.
Write text and pick a voice, rate, and pitch to test your browser's speech synthesis capabilities. No download.
See the International Space Station’s current position on a world map in real time. Uses public API. No refresh.
Test your browser's built‑in speech recognition. Speak and see the transcribed text appear live. Must‑have for voice app devs.
Point your camera at a barcode and decode it live. Works with multiple formats. Pure JavaScript barcode detection.
View recent earthquakes worldwide on a map. Fetches public USGS GeoJSON feed directly from browser. Real-time data.