Caesium Image Compressor Alternatives for Linux

Oxipng is a multithreaded lossless PNG compression optimizer in Rust. It can be used via a command-line interface or as a library in other Rust programs.

From developers to developers: a cross-platform tool for losslessly image compression.

pngquant is a command-line utility and a library for lossy compression of PNG images.

Utilities for archiving photos for saving to long term storage or serving over the web. The goals are: use a common, well supported format (JPEG), minimize storage space and cost, identify duplicates / similar photos.

Phatch is an user friendly, cross-platform Photo Batch Processor and Exif Renamer with a nice graphical user interface. Phatch handles all popular image formats and can duplicate (sub)folder hierarchies.

Curtail (previously ImCompressor) is a useful image compressor, supporting PNG and JPEG file types. It support both lossless and lossy compression modes with an option to whether keep or not metadata of images. It is inspired by .

Converseen is a free cross-platform batch image processor for Windows and Linux that allows you to convert, resize, rotate and flip an infinite number of images with a mouse click.

C++ file optimizer. It supports PNG, JPEG, GZIP, and ZIP files.

Minuimus is a file optimizer utility script: You point it at a file, and it makes the file smaller without compromising the file contents.

Leanify is a lightweight lossless file minifier/optimizer. It removes unnecessary data (debug information, comments, metadata, etc.) and recompress the file to reduce file size. It will not reduce image quality at all.