Building GIFs Programmatically Without Photoshop

GIFs remain the universal animated image format. Discord, Slack, GitHub READMEs, documentation sites, bug reports -- everywhere that video feels too heavy and a static image is not enough, GIFs fill the gap. But creating them usually involves either screen recording software with imprecise trim controls or Photoshop's timeline editor, which is overkill for most use cases. I want to walk through how GIFs actually work at a technical level and the fastest ways to create them for developer workflows. How GIF encoding works GIF uses LZW (Lempel-Ziv-Welch) compression, a lossless algorithm for each individual frame. But GIF is limited to 256 colors per frame. This constraint, defined in the 1989 GIF89a specification, is why GIFs of photographs look terrible (banding and dithering) while GIFs of UI interactions and simple animations look crisp. Each frame in a GIF can have: Its own color palette (local color table) or share the global palette A disposal method (how to handle the previous fra