Alternatives to Caesium Image Compressor
Batch compresses JPEG, PNG and WebP images, often cutting file size dramatically with no visible quality loss. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Caesium Image Compressor
Batch compresses JPEG, PNG and WebP images, often cutting file size dramatically with no visible quality loss.
Replacements
Listings that take over the same core job as Caesium Image Compressor.
ImageOptim
Compresses images on macOS and strips their metadata.
ImageOptim is a free GPL-2.0 compressor that runs several optimisers and strips GPS and EXIF data, but it is macOS only and works in place.
ImageMagick
A command-line image toolkit that creates, edits, converts and composes images across more than 200 formats.
ImageMagick is a free command-line toolkit that can resize and convert images across more than 200 formats in scripts, but it has no graphical before and after view.
XnConvert
A cross-platform batch image converter that resizes, edits and converts photos in bulk.
XnConvert offers more than 80 chainable batch actions and formats including AVIF and JPEG-XL on Windows, macOS, Linux and Android, but is closed source.
oxipng
Reduce PNG file sizes with a lossless command-line optimizer.
oxipng is a lossless command-line optimizer with a Linux build, but handles only PNG and animated PNG rather than JPEG or WebP.
Similar software
Related functionality, not a direct replacement.
XnView MP
Views, converts and organises images in more than five hundred formats, free for personal use.
IrfanView
A tiny Windows image viewer that has opened everything since 1996 and still starts instantly.
ExifTool
Reads, writes and edits metadata in almost every image, audio and video format there is, and is the reference tool for the job.
Converseen
A free batch image converter and resizer for Windows, Linux, macOS and FreeBSD.
ImagePipe
An Android app that removes EXIF metadata and reduces image size before you share a picture.
