Speech Length Estimator β Online Words to Minutes
Paste your script and get an approximate speech duration based on slow/average/fast pace. Avoid overtime.
UD5 Toolkit
Train your brain to read faster with Rapid Serial Visual Presentation
Paste your script and get an approximate speech duration based on slow/average/fast pace. Avoid overtime.
Hear a word spoken by browser TTS and type the spelling. Choose difficulty or paste your own list. Great for kids. Local only.
Hear text spoken word by word with boundary events. See the exact index and character. Advanced TTS dev tool.
Paste your speech, set time limit, and practice with a pacing indicator (words per minute). Refine delivery.
Estimate ovulation day and fertility window from last menstrual period. Displays probable conception dates. Informational only; processes locally in browser.
Measure your visual and auditory reaction speed. Average and best times shown. No data collected. Pure Javascript timing.
Test your browser's builtβin speech recognition. Speak and see the transcribed text appear live. Mustβhave for voice app devs.
Record audio directly from your microphone and download it as a WAV file. Perfect for quick notes. No upload, fully offline support.
Use your microphone to dictate text and see it appear live. Also upload an audio file for transcription (limited). All local.
Use your microphone to dictate text and see it appear live. Also upload an audio file for basic transcription. All local.
Simple tracker to record potty attempts, successes, accidents. See patterns. Data stays local. Aids in toilet training journey.
Track days of sobriety with a motivational counter and milestone celebrations. Set quit date and see time elapsed in days, hours, minutes. Private & local.
Convert pixel values to em and rem units based on a base font size. Bidirectional. Mustβhave for frontβend developers.
Paste robots.txt content and parse it to check validity, find disallowed paths. Educational SEO tool. Local processing.
Paste HTML and see a before/after comparison of minified output. Check the byte savings. All local.
Set a list of agenda items with allocated minutes. Advance through speakers and see remaining time visually. Keep meetings on track.
Tap a glass icon each time you drink a cup of water. See your daily intake. Reminders optional. Local storage.
Set any future date and see a live countdown in days, hours, minutes, seconds. Fun animated display. Save multiple countdowns locally.
Generate a realistic, random userβagent string for desktop, mobile, or bot. Perfect for API testing and scraping.
Learn to aim a signal mirror by aligning a virtual finger and target. Simulates the retroβreflective mesh technique. Practice before you need it.
Test a regex against long strings and measure execution time. Detect catastrophic backtracking patterns. Visual warning if slow.
Build a properly formatted robots.txt file with user-agent rules and sitemap location. Validate syntax in real time. Essential for webmasters.
Answer questions and see typical milestones for 0-5 years. Educational reference for parents. Not a diagnostic tool.
Compare :focus and :focusβvisible styling. See which one applies when using mouse vs. keyboard. Accessible focus management.
Click for a warm, encouraging sentence to lift your spirits or support a friend. Small positive boost. No repeats.
Start a 10β15 minute guided laser chase session that ends with the dot landing on a treat, preventing frustration from never catching the prey.
See a comprehensive table of which modern web APIs your current browser supports. Includes WebGPU, AVIF, and more.
Turn your browser screen into a fullβcolor flashlight or strobe. Adjust brightness and color. Simple utility.
Simple phase cancellation tool: load a stereo track and attempt to remove centerβpanned vocals. Not perfect, but fun to experiment.
Get a short, thoughtβprovoking insight or proverb. A moment of reflection. Works offline.