Caesium Image Compressor
The facts below are what the maker publishes about Caesium Image Compressor, checked and dated. Our editors have not written about it yet.
Plans and prices
From Caesium Image Compressor's own pricing page, checked 10 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Caesium Image Compressor | Free | Free software; Windows 10 (build 1809+) and macOS 12+ downloads listed; Linux requires source compilation or a third-party build |
The facts
Each one read from Caesium Image Compressor's own pages, with the date it was checked.
What it does
- Advanced options
- The desktop product includes metadata storage options and folder structure support.checked 10 Oct 2026
- Batch processing
- Yeschecked 20 Sep 2026
- Command line
- Caesium offers command-line tools for fast image compression with advanced tools.checked 10 Oct 2026
- Compression
- The maker says pictures can be compressed up to 90% without visible quality loss.checked 10 Oct 2026
- Compression modes
- bothchecked 20 Sep 2026
- Image resizing
- Yeschecked 20 Sep 2026
- Lossless mode
- The online compressor has a lossless compression option that preserves image quality completely.checked 10 Oct 2026
- Metadata controls
- Yeschecked 20 Sep 2026
- Online compressor
- Caesium also offers an online compressor that can be used without downloading dedicated software.checked 10 Oct 2026
- Online limits
- The online compressor allows up to 10 files at a time and a maximum of 20 MB per file.checked 10 Oct 2026
- Online privacy
- The online compressor states that images never leave your device.checked 10 Oct 2026
- Preview and batch processing
- The desktop interface provides a real-time preview and processes multiple images at the same time.checked 10 Oct 2026
- Purpose
- Caesium compresses digital pictures for storing, sending and sharing, and is aimed at photographers, bloggers, webmasters, businesses and casual users.checked 10 Oct 2026
- Support
- The project README directs users to open an issue for troubleshooting or feature requests.checked 10 Oct 2026
- Supported formats
- The online compressor allows JPG, PNG and WebP images.checked 10 Oct 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
Where it runs
- Linux support
- The project README says Linux has been tested on Ubuntu 22.04 and Manjaro, and users can compile the source or obtain a third-party binary build.checked 10 Oct 2026
- macOS support
- The current listed desktop version supports macOS 12 or later and is available as a DMG.checked 10 Oct 2026
- Windows support
- The current listed desktop version is v2.8.5 and supports Windows 10 build 1809 or later, with installer and portable downloads.checked 10 Oct 2026
The company
- Maker
- The creator and maintainer identifies himself as Matteo, a developer from Italy, and says the project started more than 10 years ago.checked 10 Oct 2026
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