cKas is an independently operated collection of web tools designed to handle small, everyday recordkeeping tasks, including daily reports and sports measurements, entirely in your browser.
Tools we provide
cKas provides tools for preparing delivery and inspection reports, scoring Japan's New Physical Fitness Test, estimating speed from pitching videos, and creating batting orders and defensive lineups for amateur baseball. Additional tools include baby care family sharing, household accounts, weight tracking, daily report PDF approval, and reservation and order reception pages with business management. The interface supports Japanese, English, Simplified and Traditional Chinese, and Korean; some detailed text uses English. Each tool explains its calculation method, assumptions, possible errors and precautions so you can assess the results.
Our approach
We aim to make useful tools available immediately without account registration, keep them readable and easy to use on smartphones, and process entered data on your device whenever possible. If we find incorrect information, we review and correct it.
Site operator
Operator: cKas operator (individual) Site name: cKas URL: https://ckasahara.com/
To send feedback, report a problem or request a correction, please use the Contact page.