InstaIdea

InstaIdea is a free browser-based collection of 232 mini games, brain-training games, developer tools, and everyday utilities. It includes calculators, timers, random pickers, notepad tools, JSON formatter, QR generator, regex tester, JWT decoder, SQL formatter, CSS tools, MBTI test, AI tarot, and other quick tools. It works without install or signup and supports Korean, English, and Japanese pages.