J

jpeg

JPEG XL image format reference implementation. Mirror from https://github.com/libjxl/libjxl, info on latest releases there!

Strip all data that isn't image data from a jpeg by decoding and re-encoding it using libjpeg.

Prebuilt binaries for the ImageMagick image processing library for Windows, Linux and macOS.

Python package and command to compress and obfuscate web resources

Command-line double caption meme generator. Written in Go (Golang) with support for GIF, PNG, JPEG and WebP

jpeg transcoder in pascal

Read off data points (including errors) from images directly into a ROOT script

PHP image metadata library (XMP, IPTC, Exif)

A quick and easy python script to use convert common images to webp format. Takes all specified images in a current working directory and convert them to webp using Pillow, yielding up to 80% file size reduction.

PDF Wizards - simple wizard-style tools for modifying PDF files

The reference library for encoding/decoding Multiple-image Network Graphics (MNG)

ANSI C/C++ header wrapper for jpeglib