Historical Figures Timeline - Online Interactive Life Spans
See famous people's life spans on a draggable timeline. Compare who was alive at the same time. Educational fun.
UD5 Toolkit
Who Pressed First? Instant reaction detection for quizzes, trivia nights, and classroom games.
See famous people's life spans on a draggable timeline. Compare who was alive at the same time. Educational fun.
Build a minute‑by‑minute schedule with speaker names, AV cues, and notes. Export as a clean PDF for your production team.
Paste a list of references and sort them A‑Z by first author. Handles various formats.
Paste a CSS gradient and export a vertical swatch image. Ideal for design documents. No server needed.
Paste Markdown and convert all links from absolute to relative (or vice‑versa) based on a base domain. Bulk edit.
Browse all official LEGO colors with names, years, and hex codes. Sort by hue. Perfect for builders.
Adjust the color temperature of your image: move slider to make it warmer or cooler. Quick white balance fix. Local canvas.
Look up the correct ironing temperature for cotton, silk, polyester, and more. Displays the corresponding laundry symbol and whether steam is safe.
Draw shapes and experiment with globalCompositeOperation. See Porter‑Duff operators in action. Great for game devs.
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.
Create a random video game premise with a setting, protagonist, and twist. For game jams and creative writing. All local.
Stuck in a word scramble game? Enter the scrambled letters and get a list of possible English words. Built‑in dictionary. All local.
Try to draw a perfect circle freehand. Score based on roundness. Fun and addictive. No data sent.
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.
Practice CSS selectors by targeting plates on a virtual restaurant table. 30+ levels. Perfect for beginners.
A replica of the famous Flexbox Froggy game: solve alignment puzzles by writing CSS. Progress saved locally. Fun frontend learning.
Generate random Scattergories‑style lists with a random letter and 12 categories. Great for online game night.
Two players type the same text on the same keyboard (WASD vs Arrow zones) and race to finish first. Fun classroom game.
Recreate the target CSS linear gradient by adjusting stops and colors. A unique game for front‑end developers to master gradients.
Given an RGB value, pick the matching color square. Multiple difficulty levels. Improve your color perception. Fun for designers.
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.
Help the bird fly through pipes without touching them. Click or tap to flap. Track your high score in localStorage. Classic time‑waster.
Watch a color sequence and click the same pattern. Gets longer each round. Test and improve your working memory. All local.
Hit the popping moles as fast as you can before they disappear. Increasing difficulty. Great for hand‑eye coordination. Browser only.
Classic Hangman with random English words. Visual hangman drawing, keyboard support. Guess letters and save the stickman. Completely local.