Date Calculator Web (calcdate.onl.jp)
A web tool to calculate the difference between two dates (in days, weeks, months, or years) or find the date after a specified number of days. Handy for checking days until birthdays, anniversaries, and deadlines.
Calendar Web (calendar.onl.jp)
A simple calendar web app that runs in the browser. Supports monthly and weekly views, making it easy to check schedules and track dates.
Camera Share Web (camera.onl.jp)
A web app to share real-time camera footage from a smartphone or PC through the browser. Start a video feed instantly just by sharing a URL.
Trading Card Creator (card.onl.jp)
A web app to design and create original trading cards in the browser. Upload images and add text to produce unique cards for personal or hobby use.
Trading Card Battle Web (cardgame.onl.jp)
A web game to battle using original cards created with the Trading Card Creator tool. Play against friends or challenge an AI opponent in your browser.
Character Code Web (char.onl.jp)
A web tool that displays Unicode code points, UTF-8 byte sequences, and HTML character references for any input character. Useful for investigating character encoding issues and verifying encodings.
Chat Web (chat.onl.jp)
A web app for real-time chat directly in the browser without account registration. Share a URL to start a conversation with multiple people instantly.
Clothes Manager Web (clothes.onl.jp)
A web app for managing your clothing collection online. Register items by type, color, and brand to digitize your wardrobe and plan outfits more easily.
Color Web (color.onl.jp)
A color picker web tool to select colors and convert them to HEX, RGB, HSL, and other color code formats. Useful for checking color palettes in web design and creative work.
Compass Web (compass.onl.jp)
A digital compass web tool that uses your smartphone or tablet's orientation sensor to display the current direction in the browser. Check your bearings without installing any app.
Counter Web (count.onl.jp)
A simple web counter that supports count-up and count-down with just a button press. Useful for inventory tracking, headcounts, vote tallying, and many other purposes.
Anniversary Web (date.onl.jp)
A web app to register anniversaries such as birthdays and wedding anniversaries, then manage countdowns and days elapsed. Always keep track of your important special days.
