Speech Timer – Online Practice Presentations with WPM
Paste your speech, set time limit, and practice with a pacing indicator (words per minute). Refine delivery.
UD5 Toolkit
Paste your speech, set time limit, and practice with a pacing indicator (words per minute). Refine delivery.
Set any future date and see a live countdown in days, hours, minutes, seconds. Fun animated display. Save multiple countdowns locally.
Enter two dates and see the exact number of days, weeks, and workdays between them. Also shows the countdown or days since.
Fill in title, date, time, and location to generate a downloadable .ics meeting invitation. Works with all major calendars.
Set your birth date and see a live countdown with days, hours, minutes, and seconds. Shareable link. Pure frontend.
A festive countdown showing days, hours, minutes until December 25. Animated snow and music toggle. Local time.
Test your browser's built‑in speech recognition. Speak and see the transcribed text appear live. Must‑have for voice app devs.
List all available TTS voices on your system. Test each with any text. Adjust rate and pitch. Find the best voice.
Tap a glass icon each time you drink a cup of water. See your daily intake. Reminders optional. Local storage.
Play an audio file or use mic to see real‑time frequency bars. Choose colors. Great for music videos. Canvas.
A precise online metronome with adjustable BPM, beat emphasis, and time signature. Works offline. Essential for musicians.
Play left‑only, right‑only, and frequency sweeps to test your speakers or headphones. Quick audio check.
Create a random, aspirational quarterly objective with unrealistic key results. For meeting icebreakers.
Track attendance for multiple subjects. Mark present/absent and see percentage. Data in localStorage. Simple student tool.
Visualize audio in real time from your microphone or uploaded audio file. See the waveform dance. Uses Web Audio API locally.
Record your screen, window, or tab with audio directly in the browser. Download the recording as a WebM file. No upload.
Record your screen, window, or tab with audio directly in the browser. Download as WebM. No extension required.
Hear text spoken word by word with boundary events. See the exact index and character. Advanced TTS dev tool.
Virtual flip coins thousands of times and see the heads/tails ratio converge to 50%. Interactive law of large numbers.
Set watering schedules for multiple plants with visual alerts. Shows which plants need water today based on last watered date. Data stored locally.
Register a service worker, subscribe to push, and send a test notification using a VAPID key pair. Step‑by‑step demo.
Record feeding times, side (left/right for nursing) or oz for bottle. Track daily patterns. Data stays in your browser. Simple newborn helper.
Combine TTS with text highlighting. See each word colored as it is spoken. For e‑learning content creation. Local.
Play a metronome with adjustable BPM, time signature, and subdivisions (eighth, triplet, sixteenth). Tap tempo and visual flash. Works offline for practice.
Click buttons to play real animal sounds: lion roar, bird tweet, dolphin click. Studio recorded. No load.
Convert volumetric flow rate units: gallons per minute, liters per second, cubic meters per hour. Useful for plumbing and hydraulics.
Tune your guitar using the browser microphone. Detects pitch and shows deviation from standard tuning. No installation, pure client-side audio processing.
Spin a colorful wheel that lands on Yes, No, or custom answers. Includes sound effects and adjustable probability. Local fun decision maker.
Paste a user agent string to get a human-readable breakdown of browser, operating system, and device. See your own current agent info automatically.
Assign Secret Santa pairings from a list of names with spouse/partner exclusions. Optionally email results via mailto link. Fully local, no server.