Caesium Image Compressor lets you compress your pictures up to 90% without visible quality loss. Providing a simple yet effective interface with a real-time preview and multiple image processing at the same time, everyone will be able to reach the best result.
- - Caesium Image Compressor is the most popular Web-based, Windows, Mac & Linux alternative to FileOptimizer.
- - Caesium Image Compressor is the most popular Open Source & free alternative to FileOptimizer.
Caesium Image Compressor Features
ImageOptim is excellent for publishing images on the web (easily shrinks images “Saved for Web” in Photoshop). It's useful for making Mac and iPhone/iPad applications smaller (if you configure Xcode to allow better optimization).
- - ImageOptim is the most popular SaaS alternative to FileOptimizer.
pngquant is a command-line utility and a library for lossy compression of PNG images.
UPX (Ultimate Packer for eXecutables) achieves an excellent compression ratio and offers very fast decompression. Your executables suffer no memory overhead or other drawbacks for most of the formats supported, because of in-place decompression.
Comments about UPX as a Alternative to FileOptimizer
UPX is a pure exe packer while File Optimizer is a "multi file optimizer"! It is a pity that often the programs do not stick to the "theme"! This program has almost nothing in common with File Optimizer.0
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.
C++ file optimizer. It supports PNG, JPEG, GZIP, and ZIP files.
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.
JPEG Archive Features
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.