ImageMagick is a free, open-source software suite for creating, editing, converting, and displaying images. It supports 200+ formats and offers powerful command-line tools and APIs for automation, scripting, and integration across platforms.

Converting HEIF/HEIF image formats to PNG/GIF/JPEG in the browser

Screen{shot,cast} and perform ImageOps on the command line 🌱 🏞️

🔀 Convert small PNG images to SVG Tiny 1.2

🎨 Convert images to 15/16-bit RGB color with dithering

Convert HEIC/HEIF images to JPEG, PNG in browser

Batch image resizer, optimiser and profiler using ImageMagick convert, OptiPNG, JpegOptim and optional ZopfliPNG, Guetzli and MozJPEG.

A guided AVIF/JPEG XL/WebP conversion utility for JPEG and PNG sources.

UGATITによる画像変換器

A lightweight image converter which supports PNG, PNM, BMP, QOI, JPEG-LS, and H.265 intra-frame.

Converts images to Master System data formats

PHP library to convert between gif, jpeg, png and webp image files

A Node wrapper for the FLIF executable

Here are some libraries about using the browser to do image processing (format conversion), and make the corresponding demo pages.这里收集了一些关于使用浏览器做图片处理（格式转换）的库，并制作了相应的演示页面。

♻️ Reusable, scalable, bash scripts to create and optimize images.

Simple Image Presentation Interface

Simple methods to convert between OpenCV's cv::Mat and Qt's QImage and QPixmap

Python tool for downsizing Microsoft PowerPoint presentations (pptx) files.

Convert (and compress) lots of image formats into JPEG, PNG and WebP formats.

Convert HEIC image files to JPG format using libheif