Character Counter (www.oh-benri-tools.com)
An online tool for counting characters in text. Supports drag-and-drop file input and multiple counting methods, including handling of newlines and double-byte characters. Includes conversion to manuscript page equivalent.
English Word Counter (www.oh-benri-tools.com)
An online tool for counting words, sentences, characters, and lines in English text. Supports file drop or direct text input, and input content is not sent to the server.
Password Generator (www.oh-benri-tools.com)
An online tool for generating large numbers of random passwords. Individually configure uppercase letters, lowercase letters, numbers, and symbols, and adjust length and count with sliders. Bulk download as a text file is also available.
QR Code Generator (www.oh-benri-tools.com)
An online tool for generating QR codes from text in real time. Adjust size and error correction level (L/M/Q/H) with a slider, and save the generated QR code as an image.
Calendar (www.oh-benri-tools.com)
An online calendar for viewing monthly or yearly views. Supports Japanese public holidays, customizable week start day, and fullscreen display. Choose from 1-month, 2-month, or yearly views.
Clock (www.oh-benri-tools.com)
An online clock that displays the current time. Shows accurate time and supports display format switching and fullscreen view.
Repeat Timer (www.oh-benri-tools.com)
An online timer that automatically restarts when it reaches zero. Ideal for interval training or recurring task breaks, with alarm sound and fullscreen display support.
How Many Days Until Saturday?
An online tool that counts the remaining days until Saturday (or any day of the week). Also supports fullscreen display and image download.
Stopwatch (www.oh-benri-tools.com)
An online stopwatch for use in a browser. Supports start/stop with the spacebar, lap timing, and fullscreen display.
Time Formats for Copy (www.oh-benri-tools.com)
An online tool that displays the current date and time in over 8 formats — including YYYY/MM/DD, UNIX timestamp, and ISO 8601 — and lets you copy them with a single click. You can also specify any custom date and time.
Easy Timer (www.oh-benri-tools.com)
A simple online timer with one-click time setting. Choose from presets ranging from 30 seconds to 60 minutes, with adjustable alarm sound type and volume. Fullscreen display supported.
BMI Calculator (bmi.onl.jp)
A web tool to calculate BMI (Body Mass Index) from height and weight and determine obesity level. Also displays a guide to ideal weight for health management.
