Art and Others

Canvas (An online art tool by Google!)

Echosim (Use Amazon Alexa in your browser!)

Windows 1.01 (Run the original version of Windows in your browser!)

Space Jam (Why not? A true relic from the 90s as it hasn't been updated since! Featuring interesting and random things to do and look at involving the movie)

Hacker Typer (Make your friends think you are hacking by just typing on your keyboard!)

GeekPrank Hacker Typer (Like Hacker Typer above but has a few more neat features. Click "Automate" in the bottom left to begin!)

GeekPrank Windows XP (A surprisingly great simulation of Windows XP on the web) (also comes with some music through winamp as well as a version of Tetris and Minesweeper and all your other favorite Windows XP applications)

GeekPrank BIOS (Old BIOS Simulator)

RBXLeaks (See new upcoming Roblox items as well as others' comments)