Jopiggy Tools Tool List
A collection of useful tools and tech articles.
Reaction Test
Free online reaction test with 3 modes: Lightning Reflex (click when green), Aim Strike (target practice), and Dual Choice (decision speed). Test your reflexes now.
Online Stopwatch
Free online stopwatch with 4 modes: Simple mode (start/pause/quick restart), Record mode (top 3 best times), Loop mode (lap timing with fastest/slowest marks), Cube mode (hold-release start like csTimer). Fullscreen, millisecond precision, keyboard shortcuts. Ideal for running, cooking, lab work, and speedcubing.
Online Marble Race Simulator
A browser-based Box2D marble run simulator. Features Race & Battle Royale survival modes with multiple maps. No download required. The best visual tool for Twitch/YouTube giveaways, raffles, and random decision making.
Taiwan Online Clock
Get the exact current local time in Taiwan (TST/UTC+8) with millisecond precision. Features a fullscreen mode for events and exam proctoring. No DST adjustment needed.
Strong Password Generator
Free online strong password generator. Customize length, include special characters, and exclude ambiguous characters. All processing is done locally in your browser and never sent to any server, ensuring your privacy and security.