JSON Formatter (json.onl.jp)
A web tool that formats and prettifies minified or unformatted JSON data with a simple paste. Also useful for validating JSON syntax.
Stock Chart (kabu.onl.jp)
A web tool to view real-time stock price charts for Japanese and US stocks in the browser. Search by ticker symbol or company name to track price movements.
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.
Real Estate Valuation Web (land.onl.jp)
A web tool to check an estimated real estate valuation for condos and houses by entering address, age, and size. Useful for understanding market prices when selling or buying property.
Checklist Web (list.onl.jp)
A web app to manage tasks and packing lists in a checklist format in the browser. Easily add, check off, and delete items as needed.
Live Stream List (live.onl.jp)
A web service to check currently streaming live videos in one place. Browse and discover real-time streams from popular streamers at a glance.
Mortgage Calculator Web (loan.onl.jp)
A mortgage simulation web tool that calculates monthly repayments, total repayment amount, and total interest from loan amount, interest rate, and repayment period. Helpful for planning home purchases.
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.
Map Web (map.onl.jp)
A web app to display, search, and browse maps in the browser. Provides map features including current location and destination search through a simple UI.
Lunch Map Web (mapmemo.onl.jp)
A web app to pin and note lunch spots on a map and share them with others. Manage your favorite restaurants and places you want to visit directly on a map.
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.
Memo Web (memo.onl.jp)
A web app for creating, saving, and managing notes in the browser. Save text quickly without registration, accessible from smartphones and PCs alike.
