Alternatives to O&O Defrag for all platforms with any license

  • 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...

    Free Open Source Windows

    Windows Explorer integration Lightweight Minimalistic Multiple languages ... Portable Add a feature

    UltraDefrag icon
    • Discontinued The program is no longer developed: https://sourceforge.net/p/ultradefrag/news/2016/12/goodbye-farewell-or-amen/ Last version, 7.0.2, released in December 2016, can be still downloaded from the official website.

  • 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...

    Free Personal $ $ $ Windows

    Portable Add a feature

    Auslogics Disk Defrag icon
    • Bundleware It suggests to change default search engines and start page to Yahoo in web browsers

  • 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

    No features added Add a feature

    IObit Smart Defrag icon
    • Bundleware The installer may contain adwares. Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/

  • 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...

    Free Windows

    Portable Scripting support Add a feature

    MyDefrag icon
    • Discontinued The official website is no longer available. Last version, 4.3.1, released in May 2010, can be still downloaded from FileHippo

  • System Mechanic

    System Mechanic automatically repairs errors and fragmentation, cleans out clutter, and tunes up your PC -- so that it runs smoothly, reliably, and up to 300% faster!...

    Commercial $ $ $ Windows

    No features added Add a feature

    System Mechanic icon

  • PerfectDisk

    PerfectDisk is a disk defragmenter with a variety of advanced disk management features. It supports automatic background defragmentation, flexible scheduling options...

    Commercial Windows

    No features added Add a feature

    PerfectDisk icon

  • 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...

    Free Windows

    Portable Standalone Add a feature

    WinContig icon

  • 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...

    Commercial Windows

    Ram caching Add a feature

    Condusiv Diskeeper icon
    • Diskeeper integrates write caching and delayed writes, so small changes are buffered in system RAM, then written to their proper place on the disk when it's idle or not busy instead of on-demand. o&o has better scheduling and location/zone management of bulk or archive files, but both features are handy to have. Diskeeper's caching can be replaced by PrimoCache or SuperCache for hybrid disk "read and write" caching. toliman • Mar 2017 Disagree   Agree

  • 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...

    Free Personal Windows

    No features added Add a feature

    Puran Defrag icon

  • 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...

    Free Windows

    No features added Add a feature

    Windows Disk Defragmenter icon

  • 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

    No features added Add a feature

    Vopt icon

  • 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

    No features added Add a feature

    UltimateDefrag icon

  • 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

    No features added Add a feature

    Auslogics Disk Defrag Touch icon

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