Decision Roulette - Online Spinning Wheel with Sound
A sound-enabled spinning wheel with your custom options. Exciting animation and result reveal. Local only.
UD5 Toolkit
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A sound-enabled spinning wheel with your custom options. Exciting animation and result reveal. Local only.
Create secure passwords that look like gibberish words but are easy to pronounce and remember. Mix of syllables. Local generation.
Play pure tones at various frequencies to estimate your hearing range. Simple and educational.
Simple interactive eye dominance test: hold up a virtual dot and see which eye stays aligned. Educational.
Generate a bcrypt hash from a password with configurable salt rounds. Verify a password against a hash. Entirely client‑side.
Tap any key to measure beats per minute. Displays average BPM and beat interval in milliseconds. Essential for DJs and music production. No extra permissions.
Create a random long password that alternates consonants and vowels to mimic a pronounceable word. XKCD meets CVCV. Local.
Write upside down text using Unicode flipped characters. Copy and paste to surprise friends. Completely frontend and instant.
Tap any key to the beat of a song and the tool calculates the BPM. Also shows average and millisecond delay for loops.
Compare your password against a built‑in list of the 10,000 most common passwords. Instant warning if it appears.
Touch your screen and see the pressure and radius reported. Visualize force. Mobile developer tool.
Measure your visual and auditory reaction speed. Average and best times shown. No data collected. Pure Javascript timing.
Evaluate password strength through a short interactive story where each character set adds lines to a narrative. Educational fun.
Set a 20, 30, or 45‑minute countdown to simulate a technical interview. Hidden/unhidden. Boost your prep.
Press any key and see it light up on a standard QWERTY layout. Check functionality or demonstrate shortcuts.
Toggle a screen wake lock to prevent the device from dimming or sleeping. See the lock state and learn the API.
Select your bin type and get a custom instruction on securing it with bungees, straps, or locks.
Request and release a screen wake lock to keep the device awake. See the lock state in real time. Perfect for recipes or presentations.
Paste a line of poem and see which syllable stresses create a particular meter. Educational tool.
Select your vehicle to get the correct BCI group size for a replacement battery. Quick reference.
Enter a keyword or author to find classic quotes from public domain works. Inspiration tool.
Select month and hour to see a simple star map with major constellations labeled. Educational astronomy fun.
Search a comprehensive list of physical unit abbreviations (kVA, BTU, scfm, etc.) and their full name. Quick reference. Local data.
Search for common ingredient substitutions (e.g., buttermilk, egg, cornstarch). Quick reference for when you're missing something. Local data.
Get random pet name suggestions filtered by species, breed origin, and personality trait. Fun for new pet owners. Local generator.
Enter baby's weight in lbs or kg to see suggested diaper sizes across major brands. General reference, no data collected.
Search a curated dictionary of modern internet acronyms (IMO, TBH, IYKYK) and slang. Simple offline-capable reference. No tracking.
Enter a URL and get a list of all images that fail to load (404, CORS). A simple asset audit tool. Runs in your browser.
Look up what certain emojis really mean in texting (e.g., 🍆, 💀). Fun and educational for parents and newbies.
Enter any integer and quickly find the next prime number after it. Perfect for hashing and puzzles.