Roulette (www.piliapp.com)
An online roulette wheel for random selection. Customize items on the wheel, spin it, and get a random result. Useful for decision-making, classroom activities, and games.
Roulette (toolpods.io)
Register items and randomly select one using a spinning roulette wheel. Useful for group assignments and prize draws.
Rounded Corner Image Generator (web-toolbox.dev)
Free tool for applying rounded corners (border-radius) to images. Adjust the corner radius and download the result as a PNG file.
Ruler (www.piliapp.com)
An online screen ruler tool for measuring distances and sizes on your display. Drag the ruler across your screen to measure elements in pixels, centimeters, or inches.
Rune Link
A roguelite puzzle game where you place and combine runes on a board to defeat enemy waves. Features class selection, permanent upgrades, and difficulty unlocks. Free to play in the browser.
Sales Tax Calculator (saruwakakun.com)
A consumption tax calculator that computes the tax-inclusive price and tax amount from a pre-tax price. Supports the standard 10% rate and the reduced 8% rate for food and periodicals.
Schedule Coordinator (schedule.onl.jp)
A web app to coordinate schedules among multiple people. Participants enter their availability for candidate dates using ○/×/△ to find the best time for everyone.
Scoreboard (www.piliapp.com)
An online scoreboard for tracking scores in real time. Add team or player names, increment or decrement scores with a click, and display results on a large screen.
Scoreboard Web (board.onl.jp)
A web app for managing and displaying scores in sports or games in the browser. Enter team names and scores to record match points in real time.
Screen Resolution (www.piliapp.com)
An online tool to instantly detect and display your screen resolution, pixel depth, and viewport size. Useful for web developers testing responsive designs.
Screen Tools (www.piliapp.com)
Online screen utility tools including screen color fill and display testing. Use solid color screens to test monitors, clean displays, or create backgrounds for video calls.
SEO Keywords (seo.onl.jp)
An SEO analysis web tool to research keyword search volume and related keywords. Useful for developing content strategies for blogs and websites.
