FileOptimizer vs XZ Utils
FileOptimizer
nikkhokkho.sourceforge.ioXZ Utils
tukaani.orgSide by side
| Figure | FileOptimizer | XZ Utils |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Plans published | 1 | 0 |
| Spec score · File Compression Software | 8.1 (#7) | 6.9 (#29) |
| License | The program is provided free of charge under the GNU Affero General Public License, and the maker says personal and commercial use is free without feature limitations. | Core components from version 5.5.2beta onward use the BSD Zero Clause License (0BSD), while some scripts and build files use other free software licenses. |
| Purpose | FileOptimizer recompresses already compressed files to reduce their size while preserving their format and behavior. | XZ Utils is a C99 implementation of the .xz file format. |
| Support | The maker points users to SourceForge discussions for suggestions and bug reports and does not guarantee support or answers for users outside the community. | The project accepts bug reports through GitHub, email, or IRC, and asks that security issues be reported privately by email or through GitHub's vulnerability reporting feature. |
| Supported formats | APNG,AVIF,BMP,BPG,DDS,DNG,GIF,HEIC,HEIF,ICO,J2C,J2K,JP2,JPEG,JPG,JXL,MNG,MPO,PCX,PNG,PSD,SVG,TGA,TIF,TIFF,WEBP | The tools support the .xz format and the legacy .lzma format. |
Plans
In their own words
FileOptimizer
FileOptimizer is a free Windows program that recompresses already-compressed files to reduce their size while retaining their format and behavior. It supports batch processing and accepts files through its interface or command line; optimization replaces them with optimized versions. The maker says it handles more than 600 file extensions and identifies types by examining file contents, regardless of extension. Listed formats include APNG, AVIF, BMP, BPG, DDS, DNG, GIF, HEIC, HEIF, ICO, J2C, J2K, JP2, JPEG, JPG, JXL, MNG, MPO, PCX, PNG, PSD, SVG, TGA, TIF, TIFF, and WEBP. By default, it removes extra metadata and keeps originals in the recycle bin. The program includes more than 90 third-party tools as plugins and supports command-line automation. It is provided under the GNU Affero General Public License, free for personal and commercial use without feature limits. The maker lists Windows XP through Windows 11 and Server 2022 among its requirements. Lossy options are also documented for PNG, JPEG, and GIF.