Gif GitHub Repositories (2026) · Open Source Tools

Render OG images and paged PDFs from JSX, HTML, and CSS. No headless browser. Runs on Node.js, Cloudflare Workers, browsers, and Rust.

ShareX is a free and open-source application that enables users to capture or record any area of their screen with a single keystroke. It also supports uploading images, text, and various file types to a wide range of destinations.

Asynchronous image downloader with cache support as a UIImageView category

Image loading system

A simple web-based tool for Spriting and Pixel art.

High-performance engine for capturing, modifying, and converting DOM elements into any format.

Contains some simple and commonly used WPF controls

Fast, secure image processing server and Go library, using libvips

An image and texture viewer for tga, png, apng, exr, dds, pvr, ktx, ktx2, astc, pkm, qoi, gif, hdr, jpg, jxl, tif, ico, webp, avif, heic, and bmp files. Uses Dear ImGui, OpenGL, and Tacent. Useful for game devs as it displays information like the presence of an alpha channel and querying specific pixels for their colour.

High-performance document and image viewer that prioritizes screen space and control.

:rowboat: Convert any image to ICO format

Grep the GIF. Stick the landing.

lightweight procedural motion tool for static 2D images and game assets

Free, open-source screenshot and screen recording app for macOS: capture, annotate, add backgrounds, and record MP4 or GIF. A native CleanShot X alternative.

Pure-managed, SIMD-accelerated image codecs for .NET: JPEG, PNG, WebP, TIFF, GIF, JPEG 2000 and JBIG2, plus EXIF and ICC. No native dependencies, NativeAOT-compatible; the JPEG decoder beats libjpeg-turbo on our benchmark corpus.