Side by side
FileOptimizer vs MozJPEG
Both stand on image compression software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Windows
FileOptimizer offers broad file support, batch handling and command-line workflows at no charge. Windows users should note that optimization overwrites working files and that PDF processing can reduce image quality.
Visit FileOptimizer Free plan APILinuxMac+2
MozJPEG is a library for programs seeking improved JPEG compression while retaining broad decoder compatibility. The included cjpeg tool is only a demo, so the project is aimed at library integration rather than serious command-line use.
Visit MozJPEGThe facts
| FileOptimizer | MozJPEG | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Windows | API, Linux, Mac, Self-hosted, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | nikkhokkho.sourceforge.io | github.com |
| On image compression software | #18 of 85 | #14 of 85 |
FileOptimizer: what it does well
- Free for personal and commercial use without feature limits
- Batch processing and command-line automation
- Supports more than 600 file extensions
- Original files are kept in the recycle bin
- Lossless optimization is the default
What to know first
- The program is for Windows
- Optimization overwrites working files
- Lossy options are available for PNG, JPEG and GIF
- PDF optimization can reduce image quality
MozJPEG: what it does well
- Compatible with the JPEG standard.
- Integrates through the libjpeg API.
- Progressive encoding can losslessly reduce JPEG size.
- Improvements can be disabled at runtime.
- Build instructions cover macOS, Linux, and Windows.
What to know first
- The cjpeg command-line tool is described as a demo.
- The project points elsewhere for additional build help.
- The repository page states no security certifications or compliance claims.
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