Ham Radio Q‑Code Quiz – Online Test Your Knowledge
Randomly show a Q-code and select correct meaning. Learn while having fun. For your license exam.
UD5 Toolkit
Fun Fact Quiz – True or False Challenge
Loading...
Randomly show a Q-code and select correct meaning. Learn while having fun. For your license exam.
Learn to identify the 10 basic cloud types from photos. Self‑test quiz mode. Useful for pilots and hikers.
See a cropped or simplified brand logo and guess the company. Hints available, score track. Local fun, no copyright infringement.
Identify countries from their flags. Multiple difficulty levels and regions. Track your high score. Educational geography game. Works offline.
Test how fast you can convert between binary and decimal. Timed drills with increasing difficulty. Learn base‑2 fluency.
Test your knowledge of American Sign Language letters. See a sign and type the letter. Improve receptive skills. Local.
Generate a random sequence of button presses that looks like a retro game cheat code. Totally useless, totally fun.
See a random color and type its name. Score based on accuracy. Fun for designers. Local.
Combine two random elements and get a surprising result. Inspired by Little Alchemy. Infinite ideas. All local.
Test your knowledge: given a state name, pick its capital. Timed, with scoreboard. Learn all 50. No login.
Try to draw a perfect circle freehand. Score based on roundness. Fun and addictive. No data sent.
Test your knowledge of world capitals. Multiple choice, timed rounds. Improve your geography skills. No data collection.
Random world flags shown; pick the correct country name from four choices. Score and streak. Learn geography.
Watch and repeat the growing sequence of colored buttons. How long is your memory? Classic electronic game replica.
Play the extended 5‑gesture version against a CPU. Rules explained. Score tracking. A geek classic.
A replica of the famous Flexbox Froggy game: solve alignment puzzles by writing CSS. Progress saved locally. Fun frontend learning.
Keep a virtual pet alive by feeding, playing, and cleaning. Its state persists in localStorage. Come back or it gets sad.
Generate random Scattergories‑style lists with a random letter and 12 categories. Great for online game night.
Shows a random short word and displays animated ASL fingerspelling letters. Type what you see. Improve receptive skills.
Two players type the same text on the same keyboard (WASD vs Arrow zones) and race to finish first. Fun classroom game.
Answer a series of deliberately confusing and trick questions. Lives system and funny wrong answers. Playful, no data stored.
Recreate the target CSS linear gradient by adjusting stops and colors. A unique game for front‑end developers to master gradients.
Play the Pig dice game: roll to accumulate points, but a 1 ends your turn. First to 100 wins. Simple hot‑seat local game.
The original arcade Pong recreated in HTML5. Play against AI or local two‑player. Score up to 11 and win. Pure retro fun.
Watch a color sequence and click the same pattern. Gets longer each round. Test and improve your working memory. All local.
Play Rock Paper Scissors against a smart random CPU with win/loss/draw tracking. Smooth CSS animations. No ads, pure fun.
Repeat the growing color sequence. How far can you go? Classic memory game with sound and animations.
Control a lunar module and try to land softly on the moon. Manage fuel and thrust. Classic arcade physics. Canvas.
Enjoy classic Tetris in your browser. Rotate, move, and drop tetrominoes. Clear lines and score. Fully local JavaScript.
Create a virtual scratch card with a hidden message or prize. Send the link; recipient scratchs with mouse/touch. Canvas-based.