Best Free Disk Defrag Software for Windows 10

Disk fragmentation makes your hard disk to do extra work that’s mean your computer performance will slow down timely. There is some disk defrag software available for your windows 11, 10, 8 PC to rearrange fragmented data in your hard drive.

Basically, you can say that defragmentation is automate process for your hard drive to arrange all the data in your hard drive carefully and systematically. Generally, we store data in hard drive on regular basis, some time we delete few files and add few files in this process your hard disk occupies incorrectly and space left in between hard drive sector. These processes slow down your performance and to fix this issue you need to use disk defrag software.

Windows OS by default come with disk defragmentation tool but you can also try some other free tools with extra features. We handpicked some great free disk defrag software in 2021 for you.  This list contains both free and paid software for disk defrag in windows 11 and 10.

Note: Listed below all Disk Defrag software tested on Windows 11 Pro beta version 21H2 OS build 22000.100. All software work properly in windows 11 so that’s why we write that these software compatible for windows 11 too.

Best Free Disk Defrag Software in 2021

1. IObit Smart Defrag:

Software Name: IObit Smart Defrag
Publisher: IObit
Version 7.0.0
File Size 15.6 MB
Supported Operating System Windows 11, 10, 8, 7, vista and XP
Overall User Rating 4.7
Software Category PC Optimization
Pro Version Price $19.99

iobit smart defrag pro

IObit smart defrag is one of the fast and deep defrag to optimize hard drive performance. When your system responding slow due to fragmentation of disk IObit smart defrag is last resort for you. This best and free disk defrag software optimize your computer speed and also help to increase your system boot time.

You can play game on faster mode, larg file defrag, monitor your disk health, and intelligent optimize method for your disk to improve your PC performance.  IOBit smart defrag version 7 also comes with pro version in just only $19.99 with advanced features but you want to use only free version its also OK. Because this disk defrag software free version also do the lots of task try it now.

Download IObit Smart Defrag

2. Piriform Defraggler

Software Name: Defraggler
Publisher: Piriform (CCleaner)
Version 2.22.995
File Size 7.1 MB
Supported Operating System Windows 11, 10, 8, 7, vista and XP
Overall User Rating 4.6
Software Category PC Optimization
Pro Version Price $24.95

piriform defraggler for disk defrag

Makers of CCleaner Piriform also provide the solution for fragmented hard drive. This Defraggler from piriform is one of the best disk defragmentation software. Defraggler works with both SSD and HDD hard drive and even with NTFS and FAT 32 file system.

No matter which version of windows operating system or which type of hard drive you are using this defrag software for windows can help to speedup your pc performance by 60%.

While other tool for defrag hard drive windows 10 do the task manually every time but while using Defraggler you no need to do this more you can schedule defragmentation while you sleep, eat or watching television this tool done the process automatically and help you to optimize your pc performance. Try it now.

Download Defraggler Here

3. Auslogics Disk Defrag 10

Software Name: Auslogics Disk Defrag
Publisher: Auslogics
File Size 16.7 MB
Supported Operating System Windows 11, 10, 8, 7, vista and XP
Overall User Rating 4.4
Software Category PC Optimization
Pro Version Price $29.95

auslogics disk defrag 10 for windows

Auslogics Disk Defrag is one of the fastest defragmentation software for windows 10 and 11 users. It takes hardly less then 10 minutes to defrag your hard drives in windows machine.  Auslogics not only defrag your hard drive its also prevent new files to fragmented your hard drive.

So, if you are using Auslogics disk defrag then its one of the fastest, cheapest and lightweight utility to defrag windows drive easily. While some of software defragmented whole hard drive but this tool also provide you option to defragment only selected files and folders so it will be saving your time to.

Download Auslogics Disk Defrag Here

4. GlarySoft Disk Speedup

Software Name: Disk Speedup
Publisher: GlarySoft
Version 5.0.168
File Size 6.5 MB
Supported Operating System Windows 11, 10, 8, 7, vista and XP
Overall User Rating 4.2
Software Category PC Optimization
Pro Version Price $39.95 (Glary Utilities)

glarysoft diskspeedup

GlarySoft makers of malware hunter also provide tool for disk defrag for windows. GlarySoft Disk Speedup tool optimize and defrag your windows hard drive easily.

This disk defrags software fast and efficient, user friendly interface, schedule scan, and customized preset these are the few feature of this tool. And one of the best things is that this tool is completely free so you can enjoy all the features for free. If you need pro version its redirect you to Glary Utilities cart page.

GlarySoft disk speedup is looks like very old user interface and look like that it makes for windows XP users and they didn’t change UI from years.

Download GlarySoft Disk Speedup

5. O & O Defrag 24.5

Software Name: O&O Defrag
Publisher: O&O Software
Version 5.0.168
File Size 26.2 MB
Supported Operating System Windows 11, 10, 8, 7, vista and XP
Overall User Rating 4.0
Software Category PC Optimization
Pro Version Price $29.95

O&Odefrag software for windows

O&O Defrag tool claims that they speedup your computer performance by 100% after installing this utility. This O&O defrag is one of the fastest and lightweight disks defrag tool.

When your system too old and start performing slow then you need utility like O&O defrag tool because its work on any age system and system again working like new. When you install this disk defragmentation tool then no need to do extra customization.

Download O&O Defrag Here

Other Notable mention in disk defrag software list.

  • Disk Defragmenter Microsoft
  • Wise Care 365
  • Ultra-Defrag
  • Systweak Disk Speedup
  • Puran Defrag
  • Ultimate Defrag

Why You need Disk Defrag Software

So, we already discuss the best disk defrag software and list them according to their features, benefits and others. But the main question is still that when you already using pc cleaner, antivirus and some other pc optimization tool. But still my answer is Yes you 100% required a disk defrag tool because a healthy hard disk improve your pc performance and also help to maintain your PC for longer time without any hurdles.


Our conclusion for best disk defrag tool is that you can use any of them as per your budget to defrag your hard drive in windows 11 , 10, 8, 7 and XP version. We recommended that you try IObit smart defrag and Auslogics disk defrag both are the lightweight and easy UI. If you prefer any other tool then let us know in the comment section below.

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By TechMaven

Tech Maven was launched in 2020 as a comprehensive technology blog covering trends, tips and tricks, How to article, help for windows and mac and latest android and iPhone apps.

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