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.
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.
Digital Clock (digital.onl.jp)
A web app that displays a large, easy-to-read digital clock in the browser. Ideal for displaying the time on screen during presentations, classes, and events, with full-screen support.
Stopwatch (stopwatch.onl.jp)
A stopwatch web app with lap time recording. Useful for sports practice, task timing, and many other purposes — ready to use instantly without any installation.
Timer (timer.onl.jp)
A countdown timer web app that sounds an alarm at the specified time. Useful for managing cooking, study, and work sessions, with support for setting multiple timers.
Analog Clock (watch.onl.jp)
A web app that displays an analog clock in the browser. Shows the current time with a simple, clean design that can also be used as an ambient display piece.
Countdown Timer (saruwakakun.com)
A web-based countdown timer that lets you set a duration or target date. Supports title and color customization, and URL sharing. No sign-up required.
Business Day Calendar (toolpods.io)
Business day calendar considering Japanese public holidays. Check working days by month or week, and calculate the number of business days from a given date.
Date & Timestamp Converter (toolpods.io)
Convert between Unix timestamps and human-readable dates. Get the current timestamp or convert any date.
World Clock (toolpods.io)
Display the current time in locations around the world. Select time zones to compare time differences.
