Resting Heart Rate Checker – Online Manual Tap Count
Tap key for 15 seconds, calculates BPM. Quick resting heart rate check. Manual, no hardware.
UD5 Toolkit
Tap the button each time you observe a breath. Timer starts on first tap.
Tap key for 15 seconds, calculates BPM. Quick resting heart rate check. Manual, no hardware.
A simple button that, when pressed, plays the sound of a long exhale and visually releases animated leaves or feathers. A tiny moment of calm.
Visual and audio beat at 100‑120 compressions per minute. 30 compressions timer. For training and emergencies.
Set a recurring timer that reminds you to check your posture. Desktop notification with a gentle chime. Stay healthy.
Type a haiku line by line and let the tool count syllables per line. Alerts you if a line doesn’t fit the 5‑7‑5 structure, helping you craft perfect haikus.
Multiple digital counters for tracking stitches, rows, and pattern repeats. Increment, reset. Works on mobile.
Keep track of stitches and rows for your knitting projects. Multiple counters with increase/decrease shortcuts. Data saved in your browser.
Compute simple interest and final amount given principal, annual rate, and duration. Also reverse-calculates rate or time. Local only.
Calculate your ideal hourly rate based on target annual income, expenses, holidays, and non-billable time. Compare with project-based pricing. Local only.
Track up to 5 habits with a visual chain. Tap to mark day as done, see longest streaks. Data saved in your browser. Inspired by 'Don't break the chain' method.
Track days of sobriety with a motivational counter and milestone celebrations. Set quit date and see time elapsed in days, hours, minutes. Private & local.
Paste text and see a sorted count of all emojis used. Find your most‑used emoji. Fun analytics. All local.
Paste your article and see a table of the most frequent words with their density percentages. Help avoid keyword stuffing. Local.
See how many tabs you have open and estimate memory usage based on navigator object. Fun productivity check.
A large, simple button to count anything. Plus / minus, reset, and save count to localStorage. Works offline.
Count syllables per word and for entire text blocks. Ideal for writing haikus, poetry, and literacy exercises. Local algorithm.