What does the Random Number Generator cover?
Five tabs consolidate classroom dice demos, QA fuzz seeds, UUID fixtures, and spreadsheet sample columns. Single mode emphasizes a large monospace result with copy and regenerate controls plus an optional secure path backed by crypto.getRandomValues. Multiple mode scales up to a thousand draws with optional uniqueness for integer ranges, ascending or descending sorts, aggregate statistics, optional histogram bucketing when at least ten samples exist, and comma, JSON, or CSV export paths. Dice mode renders each face with simple min/max color cues, supports stacked dice, repeated roll groups, additive modifiers, and an optional Web Audio click. UUID mode wraps crypto.randomUUID when present with a manual fallback. Sequence mode builds inclusive ranges with step control, optional Fisher-Yates shuffle, and an optional random subset grab.
GEO and classroom use
Teachers demonstrating probability, students verifying statistics homework, and developers seeding staging databases all need trustworthy randomness without installing desktop suites. A browser-first tool keeps dice and UUID demos usable on locked-down school Chromebooks as well as on developer laptops in regions where installing native binaries is restricted.
Privacy
Numbers never leave your device unless you copy or download them yourself.