Open source. Open possibilities.

Reel generates always-current demo films for web apps and CLIs from a YAML spec. It drives a real browser or terminal, records the actual flow, and renders GIF, MP4, WebM, storyboards, and interactive HTML compositions. Works via CLI, Studio UI, or Claude Code plugin. Fails CI when demos break.

VHS lets you write terminal GIFs as code using .tape files for integration testing and demoing CLI tools. It supports recording, publishing, self-hosting via SSH, and multiple output formats.

PNGCrushCS is a C# suite for lossless image optimization and format conversion. It reduces PNG, JPEG, GIF, and other image file sizes by testing compression strategies. Includes CLI tools, WinForms viewer with editing features, and libraries for image processing.

A native Windows application designed to convert video clips into optimized, looping GIFs with a built-in editor for precise trimming and customization.

MoviePy is a Python library for video editing, supporting cuts, concatenations, overlays, and effects. Works with common formats on Windows/Mac/Linux.

Aseprite is an animated sprite editor and pixel art tool for Windows, macOS and Linux, featuring layers, frames, onion skinning, sprite sheet export, Lua scripting and a CLI.

A desktop video trimmer and GIF maker that allows users to download web videos, cut specific segments, add captions, and export them without watermarks or accounts.

A versatile command-line tool that converts visual media and videos into high-quality GIFs, supporting TrueColor images by utilizing multiple local color tables.

Gifski is a macOS app that converts videos to high-quality GIFs using the gifski encoder with pngquant's cross-frame palettes and temporal dithering. Supports .mp4/.mov, up to 50 FPS, with quality, dimensions, speed, cropping, and bounce-loop settings.

ScreenToGif is a screen, webcam, and sketchboard recorder with a built-in editor that exports to GIF, APNG, video, PSD, or PNG.