make blinkies in browser javascript? (under construction)

idk what a web worker is and at this point i'm too afraid to ask

(i have to click "generate" twice in Firefox, idk why)

from what I've learned so far, image generation is typically a server-side task. tools like Imagemagick and Gifsicle are much faster at generating gifs than browser javascript. browser-based gif generation will be particularly slow on lower-end hardware, and it relies on less-mature software with fewer features. not all browsers support it, and those that do may have browser-specific quirks. however, by avoiding server-side code, it is possible to put a gif generator on free static hosting providers like Neocities, which should lower the barrier to entry!