Online Dice Roller (saruwakakun.com)
A free 3D dice roller that works instantly in the browser. Roll 1 to 6 dice simultaneously. Supports button clicks, spacebar, and Enter key. No personal data collected.
Multiplication Challenge (multiplied.onl.jp)
A math practice web app for solving multiplication table problems within a time limit. Ideal for memorizing the multiplication table and track accuracy and scores to gauge progress.
Massage Vibrator (www.piliapp.com)
An online tool that uses the browser's Vibration API to make your mobile device vibrate in customizable patterns. Control intensity and rhythm for a relaxing massage experience.
Lunch Roulette (lunch.onl.jp)
A web app to randomly decide where to eat lunch using a roulette spinner. Register candidate restaurants and let the wheel choose for you — perfect for indecisive lunch decisions.
Kana Flashcards (www.piliapp.com)
Online flashcards for learning Japanese hiragana and katakana. Practice recognizing kana characters with an interactive quiz-style interface to build reading skills.
Four Pillars of Destiny (destiny.onl.jp)
A web app for fortune-telling based on the Four Pillars of Destiny (Shichusuimei / Ba-Zi) using birth date and time. Easily check personality and fortune through this traditional East Asian divination method.
Flip a Coin (www.piliapp.com)
An online coin flip simulator. Click to flip a virtual coin and get a random heads or tails result for quick decision-making.
Drill Generator (lazesoftware.com)
Auto-generates English vocabulary and math drills. English covers 60+ categories (numbers, months, days, colors, animals); math covers addition, subtraction, multiplication, and division. Supports flashcard display and print output.
Division Challenge (divided.onl.jp)
A math practice web app where you solve division problems within a time limit. Great for improving children's arithmetic skills or as a brain workout for adults, with score tracking.
Dice Web (dice.onl.jp)
A web tool to roll dice in the browser. Roll one or multiple dice at a time, great for board games, tabletop RPGs, and other activities.
Click Speed Test (www.ruri.info)
Free click speed measurement tool. Choose from 10, 30, or 60 second durations and measure how fast you can click. Use as a mini-game in streams or as an OBS Studio browser source.
Bingo Machine (saruwakakun.com)
A free online bingo machine. Draws numbers in roulette style and saves them automatically. Fullscreen mode makes it perfect for parties, weddings, or projector displays.
