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Compress your pictures in just a few seconds

up to 90%, preserving the original visual quality.

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Simple. Fast. Effective.

Save a lot of space on your hard drive and quickly upload your pictures for your friends.
Make sure your website is optimized to avoid prolonged loading times for your visitors.

Save space
If you have a lot of pictures in your hard drive, maybe it's time to compress them. You can save a lot of space by just putting all these pictures on Caesium and let it do his job. Caesium works great with high resolution photos from cameras.
Load faster
If you are a webmaster or a blogger, you will probably upload a lot of pictures. And what about your visitors? If your pictures are not optimized, their loading time will be very long and they will just go away. Let Caesium compress them!
Send quickly
Sending your holiday photos by mail could be very slow if they are not optimized. You can save up to 90% of your time by just compressing them with Caesium. This also applies for Facebook, Google+ and other social networks or platforms.
Features you need.
compress
Compress up to 90%
Caesium can reduce the size of your pictures up to 90% without changing the file format and without requiring additional softwares for opening them. This process preserves the original visual quality and so your pictures will look like the originals.
batch
Batch processing
Caesium can reduce the size of your pictures up to 90% without changing the file format and without requiring additional softwares for opening them. This process preserves the original visual quality and so your pictures will look like the originals.
preview
Instant preview
Caesium can reduce the size of your pictures up to 90% without changing the file format and without requiring additional softwares for opening them. This process preserves the original visual quality and so your pictures will look like the originals.
resize
Resize
Caesium can reduce the size of your pictures up to 90% without changing the file format and without requiring additional softwares for opening them. This process preserves the original visual quality and so your pictures will look like the originals.
extra
Extra features
Caesium can reduce the size of your pictures up to 90% without changing the file format and without requiring additional softwares for opening them. This process preserves the original visual quality and so your pictures will look like the originals.
free
Completely free
Caesium can reduce the size of your pictures up to 90% without changing the file format and without requiring additional softwares for opening them. This process preserves the original visual quality and so your pictures will look like the originals.
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What users say

"Very good software, I tried several images and I could not tell the quality difference although the size was substantially reduced. 5/5"

— NEIIO

"Have been using this regularly since I got this. Convenient and easy to use. Thank you."

— CHIANG LAI

Get Caesium
There is a version for every need.
Installer
If you don't know what do download, this is the version for you.
It will install Caesium on your system with an easy setup wizard.
Version 1.7.0
File .exe
Type Windows Installer
Mirror 1 Mirror 2
Portable
This version does not require any installation process.
Keep it on an USB stick and bring Caesium wherever you like.
Version 1.7.0
File .zip
Type Windows Portable
Mirror 1 Mirror 2
Source Code
Are you some kind of nerdy guy and what to see the source code?
In this package you can see Caesium heart and soul.
Version 1.7.0
File .zip
Type Compilable source
Mirror 1

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