FileOptimizer is a free application designed to reduce the size of different types of files by using several data optimization techniques. In addition to decompression and data optimization, the default program settings also remove additional metadata and other frequently unused information stored in files. Original files will be moved to the recycle bin.

FileOptimizer is an overlay for tools such as AdvanceCOMP, APNG Optimizer, DeflOpt, defluff, Document Press Version, Flash, Gifsicle, Ghostcript, GNU Strip, ImageMagick, ImageWorsener, jpegoptim, jpegtran, MP3packer, OptiPNG, PngOptimizer, PETrim, PNGOUT, pngrewrite, pngwolf, rehuff:ZLib and zRecompress . It supports the following file types BMP, DIB, DLL, BPL, DRV, LZL, SYS, CHM, CHS, CHW, DOC, DOT, FPX, MDB, MDT, MIX, MPD, MPP, MPT, MSI, MSP, MST, ONE, OST, PPS, PPT, PUB, PUZ STICKYNOTES, SNT THUMBS, DB, VSD, VST, VSS, XL, XLC, XLM, XLS, XLW, XSF, XSN, EXE, SCR, GIF, GZ, TGZ, SVGZ, JNG, JPG, JPEG, MNG, MP3, OBJ, O, LIB, A, OGG, OGV, EPDF, PDF, APNG, ICO, PNG, SWF, FAX, TIF, TIFF, PTIF, PTIFF, WEBP, AIR, APK, APPX, CBZ, DOCM, DOCX, DOTX, DOTM, DWFX, EPUB, IPA, JAR, MPP, ODT, OXPS, PPAM, POTM, POTX, PPSM, PPSX, PPTM, PPTX, PUB, SLDM, SLDM, SLDX, VDX, VTX, VSX, XAP, XLAM, XLSM, XLTM, XLTX, XPS, ZIP, AAI, AVS, DCX, PCC, PCX, FITS, JP2, JPC, HDR, HRZ, MIFF, MTV, OTB, P7, PALM, PDB, PBM, PCD, PCDS, PFM, PGM, PICON, PICT, PICT, PNM, PPM, PSB, PSD, SUN, VICAR, VIFF, WBMP, XBM, XPM, and XWD.