The Best 25 Defraggler Alternatives

  • Auslogics Disk Defrag icon

    Auslogics Disk Defrag

    Disk fragmentation leads to system slowdowns, PC crashes, slow startup and shutdown and sometimes to system failures. Auslogics Disk Defrag is designed for fast optimization of todays modern hard disks.

    Free Personal

  • MyDefrag

    MyDefrag (previously JkDefrag) is a disk defragmenter and optimizer (a maintenance utility to make your harddisk faster) for Windows 2000, 2003, XP, Vista, 2008, Win7, and for X64.

    Free Windows

  • UltraDefrag

    UltraDefrag is an open source disk defragmenter for Windows. It can quickly defragment everything including files which are usually locked by Windows. For instance, UltraDefrag can re-join paging and hibernation files.

    Free Open Source Windows

  • IObit Smart Defrag

    Smart Defrag supports deep defragment, defragmentation of multi-volumes, it optimizes file placement and have the option to automate your defragmentation for you.

    Free Windows

  • PerfectDisk

    PerfectDisk is a disk defragmenter with a variety of advanced disk management features. It supports automatic background defragmentation, flexible scheduling options, and boot-time defragmentation of locked system files.

    Commercial Windows

  • oo defrag

    O&O Defrag packs file fragments quickly and securely back together to optimize your hard disk under Windows.

    Commercial Windows

  • Windows Disk Defragmenter

    Disk Defragmenter is a computer program included in Microsoft Windows designed to increase access speed by rearranging files stored on a disk to occupy contiguous storage locations, a technique commonly known as defragmenting.

    Free Windows

  • Condusiv Diskeeper

    Condusiv's Diskeeper 16 is designed to be an active defragmenter that defrags while idle, but also delays and caches read/writes by using a pool of system RAM (L1 cache) both to avoid file fragments on SSD or HDDs and boost system...

    Commercial Windows

  • Puran Defrag

    Puran Defrag is a very simple disk defragmenter which will defrag the files and optimize your system, collecting all the fragments of a file and putting them together, as well as moving some frequently used files and all directories to...

    Free Personal Windows

  • WinContig

    WinContig is an easy-to-use stand-alone defragmentation tool that doesn't create any installation directories or Registry entries on your computer. Its purpose is to quick defrag files without the need to defrag the whole disk.

    Free Windows

  • Stellar Drive Defrag

    Stellar Drive Defrag optimises and defrags OS X Mac Yosemite hard drives. Defrag support is extended to Mavericks, Mountain Lion, Lion and Snow Leopard. The software...

    Commercial Mac OS X

  • iDefrag

    Over time, the operating system itself ends up scattered all over your disk. This, of course, doesn’t show up as fragmentation—after all, the files themselves are...

    Commercial Mac OS X

  • UltimateDefrag

    Youre about to make a very well informed decision to buy. Why? Because theres a lot of interesting reading and learning to be done on this page. Grab a coffee or a soda...

    Commercial Windows

  • Contig

    Contig is a single-file defragmenter that attempts to make files contiguous on disk. Its perfect for quickly optimizing files that are continuously becoming fragmented, or that you want to ensure are in as few fragments as possible.

    Free Windows

  • Power Defragmenter

    Power Defragmenter is a very advanced GUI for Contig, which takes defragmentation process to a whole new level. Portable version: http://goo.gl/BZGrv rejzor Blog :...

    Free Windows

  • Vopt

    Vopt-fast disk defragmentation. Vopt lets you quickly defrag and pack your disk drives to maintain optimal performance and reliability. Vopt's speed makes daily...

    Free Windows

  • Auslogics Disk Defrag Touch

    The smart way to defragment a touch-screen computer running Windows. Hidden bonuses in Disk Defrag Touch make using the software fun and help you develop a defrag...

    Free Personal Windows