

Caesium Image Compressor
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.
Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Online
Features
Properties
- Lightweight
Features
- Image Optimizer
- Batch processing
- Drag and Drop
- Ad-free
- Works Offline
- Portable
- File Compression
- No registration required
- Multiple languages
- Batch Rename Files
- Dark Mode
Tags
- batch-resize
- Resize Images
Caesium Image Compressor News & Activities
Recent News
Recent activities
majilismage added Caesium Image Compressor as alternative to LighterImage- a-averich added Caesium Image Compressor as alternative to SciZone
- saay added Caesium Image Compressor as alternative to Batcher
ARTUR52 added Caesium Image Compressor as alternative to Noisem
Nicvw added Caesium Image Compressor as alternative to SocialPixOptimizer
azeemmustafa added Caesium Image Compressor as alternative to FileMint
POX added Caesium Image Compressor as alternative to Peggy Converter
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What is Caesium Image Compressor?
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. Advanced users will find extra features, like metadata storing options or folder structure support.
FEATURES
- Resize your pictures up to 90% preserving the file format. The software use an intelligent file compressing method.
- Batch processing. Compress in a few second as pictures as you like. Most common file format are supported. (JPG, BMP, PNG, GIF, WMF)
- Easy preview, with a twin picture box that display the final result with a button.
- Picture-by-picture compression level. You can set every single compression level at every picture.
- Compression level an be set with an easy slider.
- Drag&Drop. Drop your pictures directly into the list.
- Rename all files with a custom suffix.






Comments and Reviews
Quick and simple bulk image optimisation. Only wish it would keep folder structure!
Very disappointing. It does lack a lot of settings offered by Riot and when I tried to optimize a 300 ko png file, it gave me a heavier image automatically (you cannot change anything). Riot gives a 96 ko file (and not the best compression).
Not able to use on mobile
In the few weeks I've been using this It's been really quick, easy, and efficient.
A minor caveat: Regrettably it doesn't posses any 'undo' options, so if one's changed the settings to overwrite your files in the original folder, one has to retrieve the originals from the bin. No real hardship, just an observation to be aware of. Otherwise you can choose a designated save folder, or changed the filename to the edited photos.
Works great and quicker than expected. Can compress, resize images with a few helpful output settings like filename suffixes and output formats. Wish .avif was one of them. Might be limited for advanced users but they're probably diddling around in the terminal anyway.
One warning absolutely DO NOT add any spaces in the "suffix" option.
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Caesium is really great! Just the beta version is a very great photo/image optimization program that creates very small files! I would be very happy if it would be integrated into FileOptimizer, this would be unique!