About

Purpose of the Tool

What This Site Provides

RollNum is a focused web tool for drawing numbers from 1 to 100 without repeats. It is intended for simple moments where a fair, visible, easy-to-use sequence is more convenient than writing numbers down manually or using a complex spreadsheet.

Typical Uses

Common uses include classroom participation, team order, bingo calls, light raffles, practice question selection, party games, tabletop games, meeting order, and quick informal choices. The tool keeps the current result, counters, and generated history visible so the process is easy to follow.

How It Is Built

The project is built as a static website using HTML, CSS, and JavaScript. The generator creates and shuffles a number pool in the browser, then removes each number after it is drawn. This structure makes repeated numbers impossible within the same cycle until the visitor resets the tool.

Design Principles

The interface emphasizes clarity, speed, mobile usability, and minimal distraction. Large controls, visible counters, and a copyable sequence help visitors complete a quick task without an account or setup process.

Limitations

The tool is suitable for informal and practical use. For legally regulated contests, official lotteries, audits, or high-value prize drawings, organizers should follow applicable rules, verification standards, and recordkeeping requirements.