Mood Color Journal - Online Track Days with Hues
Pick a color for each day's mood and see a monthβatβaβglance heatmap. Data stored locally. A private emotional log.
UD5 Toolkit
How are you feeling today?
Pick a color for each day's mood and see a monthβatβaβglance heatmap. Data stored locally. A private emotional log.
Log medications daily with dose, time. See missed doses. Reminder for refill date. Data local.
List of major annual meteor showers with next peak date and moon phase prediction. Stargazing planner.
Paste text, highlight important parts, and extract only highlights. Great for research and studying. Entirely client-side.
Accurate online stopwatch with lap and split time capabilities. Start, pause, and reset. Ideal for sports and presentations. Runs natively in the browser.
Record shedding intensity and grooming sessions. Predict heavy molt periods. Reduce risk of wool block.
Paste a URL and see the og:title, description, image, and twitter card that will be used when shared. No server needed.
Enter a URL and see a preview of how it will appear when shared on Facebook, Twitter, LinkedIn. Detect missing tags.
View and edit ID3 tags of MP3 files, including title, artist, album, and artwork. All processing in your browser; no files uploaded.
Estimate due date from last menstrual period or conception date. Uses Naegele's rule and shows week-by-week milestones. Local calculator for informational use.
Full-featured scientific calculator with trigonometric, logarithmic, and exponential functions. Clean interface and keyboard support. No installation required.
Countdown timer for applying a heating pad. Includes recommended max session. Prevent burns.
Get random pet name suggestions filtered by species, breed origin, and personality trait. Fun for new pet owners. Local generator.
Convert cat age to human years using updated veterinary guidelines (not simple 1:7). Provides life stage context. Local only.
Convert rabbit age to human years considering their rapid early maturation. Fun tool for house rabbit owners. Local only.
Build a color palette for charts that works for protanopia, deuteranopia, and grayscale. Export as array.
Follow an interactive temperature curve for dark, milk, or white chocolate. Set timers for each phase to achieve perfect temper without a machine.
Enter total drive time or playlist length to figure out how many songs you need. Convert time to estimated tracks.
Simulate an earthquake alarm with a countdown and visual instructions for Drop, Cover, and Hold On.
Enter green, yellow, gray letters from your Wordle guess and get a filtered list of possible words. Your secret weapon. Local logic only.
Convert angles between degrees, radians, and grads. Quick reference for mathematics and engineering. Simple and ad-free.
Enter your altitude to see corrected temperatures for thread, soft ball, hard crack, etc. Essential for highβaltitude candy.
See how old your hamster is in human-equivalent years. Fun fact: a 3-month-old hamster is already a young adult. Local only.
Find the date of Easter Sunday for any given year. Learn about the computus algorithm. Simple and accurate.
Look up storage times for pantry, fridge, and freezer items. Reduce food waste. Local database.
Find the correct spot to drill for a heel strap button. Interactive visual guide with measurements.
Calculate your weekly, monthly, or annual pay based on hourly wage and hours. Include overtime rates. Accurate and private.
Add artificial reverb to an audio recording. Choose from small room to large hall. Wet/dry mix. Convolutionβbased.
Enter the initial amount, halfβlife, and time to find remaining quantity. Nuclear science helper.
Enter rolls remaining and household size to estimate weeks of supply. A humorous yet practical aid.