Download System Optimization - Best Software & Apps

  • CCleaner

    5.44.6577

    License
    free Download
    Platform
    Windows
    Android
    Mac

    Clean your PC in real-time

    8
    22805 votes
    • PROS: Very easy to use, Junk file removal, Correcting registry errors, Advanced tools, Free space cleaner, It's free, Available for Mac and Android
    • CONS: Few configuration options
  • SlimCleaner

    4.0.30878

    License
    free Download
    Platform
    Windows

    Community-supported PC cleaning and optimization

    7
    200 votes
    • PROS: Thorough, accurate system cleaner, Based on community knowledge, Includes app uninstaller and data shredder
    • CONS: Many items don't have a rating yet, Few configuration options
  • System Mechanic

    Pro 16

    License
    buy Download
    Platform
    Windows

    An excellent set of system maintenance tools

    8
    366 votes
    • PROS: Complete set of optimization tools, Very easy to use, Nice looking interface
    • CONS: Installation can be lengthy if you have incompatible programs
  • Advanced System Optimizer

    3.1.648.8773

    License
    buy Download
    Platform
    Windows

    Clean, optimize and personalize your PC

    7
    240 votes
    • PROS: Packed with tools, Allows you to customize the look of Windows, Optimizes your PC on a number of different levels, Targets and lists problem files
    • CONS: Tweaking and optimizing take a while to complete, Can slow down PC while running in background
  • SlimComputer

    1.1.4130

    License
    free Download
    Platform
    Windows

    Optimize your computer with the help of other users

    6
    25 votes
    • PROS: Based on community knowledge, Nicely designed interface, Includes several tool for system optimization
    • CONS: Many items don't have a rating yet
  • Dr Cleaner

    3.0.3

    License
    free Download
    Platform
    Mac

    A free program for mac, by Trend Micro Inc.

    10
    14 votes
    • Rising PC Doctor

      6.0.5.45

      License
      free Download
      Platform
      Windows

      A pack of system maintenance and optimization tools

      7
      28 votes
      • PROS: Many varied tools, Nice interface design
      • CONS: Menus are not usable, No configuration options
    • System Ninja

      3.1.5

      License
      free Download
      Platform
      Windows

      Clean junk files and save hard drive space

      8
      119 votes
      • PROS: Easy to use, Includes startup manager and process manager
      • CONS: Doesn't back up before deleting, Not as full-featured as other similar tools
    • Cloud System Booster

      3.5

      License
      free Download
      Platform
      Windows

      8
      38 votes
      • CCleaner

        2.29.1111

        License
        free Download
        Platform
        Windows

        A freeware system optimization and privacy tool

        -
        No votes yet
        • Memory Cleaner- RAM Booster

          1

          License
          free Download
          Platform
          Android

          It is free, fastest, most convenient Android System Optimization Software.

          10
          3 votes
          • TweakNow Powerpack Free

            2009 Beta 1.6.2

            License
            free Download
            Platform
            Windows

            A complete pack of system optimization tools

            7
            28 votes
            • PROS: Easy to use, independent modules, Great selection of tools, Lets you create a backup copy before applying any changes, Nicely designed
            • CONS: System Information report can't be copied or exported, Some tools are a bit too simple
          • Ultimate Windows Tweaker

            2.2

            License
            free Download
            Platform
            Windows

            More than 150 tweaks for Windows Vista

            6
            85 votes
            • PROS: No installation required, Many different tweaks included, Lets you create a restoration point
            • CONS: Not properly documented, Unstable
          • Acebyte Utilities

            Free Acebyte Utilities Free

            License
            free Download
            Platform
            Windows

            Toolbox for optimizing Windows

            7
            31 votes
            • IceClean

              3.4.8

              License
              free Download
              Platform
              Mac

              The new Mac built-in Unix tasks system recovery

              7
              24 votes
              • CA PC Tune-Up

                Plus 2.0.0.8

                License
                buy Download
                Platform
                Windows

                System analysis and optimization in one click

                7
                5 votes
                • PROS: Fast process, Really easy - anyone can do it, Analyzes important aspects of your computer
                • CONS: The trial version doesn't actually fix the errors, Interface can't be resized
              • SO Wizard

                1.2

                License
                buy Download
                Platform
                Windows

                System Optimization Wizard - An efficiently registry cleaner and system optimizer

                -
                No votes yet
                • MacPilot

                  4.3.2

                  License
                  buy Download
                  Platform
                  Mac

                  Unlock over 225 hidden OS X features

                  6
                  16 votes
                  • PROS: 225 different features, Disk tools, Login items
                  • CONS: Tweaking too many settings may affect your Mac's performances
                • All-In-One Toolbox

                  5.1.9.2

                  License
                  free Download
                  Platform
                  Android

                  All-In-One Toolbox

                  8
                  3 votes
                  • Registry Shower

                    5.0 2009

                    License
                    buy Download
                    Platform
                    Windows

                    Clean and optimize your system, with this all-in-one program

                    -
                    No votes yet
                    • PROS: Severity indicator, Includes extra optimization tools, Games to entertain you through system scans
                    • CONS: Optimizer doesn't explain what it does, Registry scans are slow
                  Softonic’s Best Rated Software for this topic
                  #NameVersionVotesRatingPlatform
                  15.44.6577228058.2Windows, Android, Mac
                  23.1.51198.1Windows
                  3Pro 163667.8Windows
                  43.1.648.87732407.2Windows
                  54.0.308782006.7Windows
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