Image Analyzer Web (image.onl.jp)
A web tool that uses AI to analyze uploaded images and describe their contents as text. Also useful for OCR and recognizing text within images.
HTML Entities (entity.onl.jp)
A web tool to look up and search HTML entities (such as &, <, etc.). Useful for converting characters to HTML entities and investigating special characters.
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.
Font Trial Web (pen.onl.jp)
A web tool to try out and preview text in various fonts. Useful as a reference when choosing fonts or checking character designs.
FIRE Calculator (fire.onl.jp)
A web tool to calculate the assets and time needed to achieve FIRE (Financial Independence, Retire Early) by entering current assets, monthly cash flow, and target amount. Simulations based on the 4% rule.
File Web (file.onl.jp)
A web app for uploading and sharing files directly in the browser. Share files effortlessly by simply sending a URL — no account registration required.
Exchange Rate Chart (kawase.onl.jp)
A web tool to check real-time exchange rate charts for major currencies including JPY, USD, and EUR. Useful as a reference for currency exchange, overseas travel, and investing.
Excel to HTML Converter (excel.onl.jp)
A web tool that converts Excel files to HTML tables simply by uploading them. Output Excel data in a format ready to embed directly in web pages.
Event Memo (evtmemo.onl.jp)
A web app to register and manage event information such as concerts and matches with date, location, and notes. Keep track of your favorite events without forgetting.
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.
Distance Measurement Web (measure.onl.jp)
A web tool to measure the distance between two points in real time using GPS in the browser. Useful for tracking travel distance during walks and exercise.
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.
