Open Source Windows File Systems
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File Systems for Windows
View 1286 business solutionsBrowse free open source File Systems and projects for Windows below. Use the toggles on the left to filter open source File Systems by OS, license, language, programming language, and project status.
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Win32 Disk Imager
A Windows tool for writing images to USB sticks or SD/CF cards
This program is designed to write a raw disk image to a removable device or backup a removable device to a raw image file. It is very useful for embedded development, namely Arm development projects (Android, Ubuntu on Arm, etc). Anyone is free to branch and modify this program. Patches are always welcome. This release is for Windows 7/8.1/10. It will should also work on Windows Server 2008/2012/2016 (although not tested by the developmers). For Windows XP/Vista, please use v0.9 (in the files archive). Warning: Issues have been reported when using to write to USB Floppy drives (and occasionally other USB devices, although very rare). While this has been fixed in v1.0, it is highly recommended that before an image is written to a device, the user should do a Read to a temporary file first. If this fails, please report the failure along with your system information. Known issues: Currently, the program will crash if you are using a Ramdisk. This is being debugged. -
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PatchCleaner
Windows Installer Directory Cleaner
Cleans your windows Installer directory of orphaned and redundant installation (.msi) and patch (.msp) files -
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Darik's Boot and Nuke
A hard drive disk wipe and data clearing utility
Darik's Boot and Nuke ("DBAN") is a self-contained boot image that securely wipes hard disk drives (HDDs). DBAN is appropriate for personal use, bulk data destruction, or emergency data destruction for HDDs, but is not recommended for solid-state drives (SSDs), sanitization that requires auditable compliance documentation, or technical support. -
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VeraCrypt
Open source disk encryption with strong security for the Paranoid
VeraCrypt is a free disk encryption software brought to you by IDRIX (https://www.idrix.fr) and based on TrueCrypt 7.1a. It adds enhanced security to the algorithms used for system and partitions encryption making it immune to new developments in brute-force attacks. It also solves many vulnerabilities and security issues found in TrueCrypt. This enhanced security adds some delay ONLY to the opening of encrypted partitions without any performance impact to the application use phase. This is acceptable to the legitimate owner but it makes it much harder for an attacker to gain access to the encrypted data. All released files are PGP signed with key ID=0x680D16DE, available on key servers and downloadable at https://www.idrix.fr/VeraCrypt/VeraCrypt_PGP_public_key.asc VeraCrypt can mount TrueCrypt volumes. It also can convert them to VeraCrypt format. Documentation: https://www.veracrypt.fr/en/Documentation.html FAQ : https://www.veracrypt.fr/en/FAQ.html -
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Ext2 File System Driver for Windows
A Linux ext2/ext3 file system driver for Windows
Ext2Fsd is an open source Linux ext2/ext3 file system driver for Windows systems (2K/XP/VISTA/WIN7/WIN8, X86/AMD64). -
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Ext2Read is an explorer like utility to explore ext2/ext3/ext4 files. It now supports LVM2 and EXT4 extents. It can be used to view and copy files and folders. It can recursively copy entire folders. It can also be used to view and copy disk and file
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Nikkho
Javier Gutiérrez Chamorro (Guti) Open source projects
Javier Gutiérrez Chamorro (Guti) Open source projects Author's website: https://www.javiergutierrezchamorro.com -
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WinDirStat: Windows Directory Statistics
A disk usage statistics viewer and cleanup tool for Windows
WinDirStat (Windows Directory Statistics) is a disk usage statistics viewer and cleanup tool for Windows. On start up, WinDirStat reads the whole directory tree once and then presents it in three useful views. The official download location and collaboration platform for WinDirStat has moved to GitHub: https://github.com/windirstat/windirstat Downloads and source code provided on SourceForge may not always be up to date. They are primarily used for disaster recovery purposes. -
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UltraDefrag
Increase your system performance with this easy to use tool
Please note, here you can find the latest open source release of UltraDefrag (7.1.4). The most recent UltraDefrag release (15.0.0) can be found on our official website: https://ultradefrag.net UltraDefrag is a disk defragmenter for Windows, which supports defragmentation of locked system files by running during the boot process. It is easy to use without any complicated scripting or a huge load of configuration settings. You can filter the files processed by size, number of fragments, file name and path. You can terminate the process early by specifying an execution time limit. -
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Kickass Undelete
A free, open source file recovery tool for Windows.
Kickass Undelete is a free, fully featured, file recovery tool for Windows. Accidentally deleted a file? Never fear; the data is probably still on your drive and may be recoverable. Kickass Undelete finds all of the deleted files on your hard drive, flash drive or SD card and allows you to recover them. -
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Catacombae
A free collection of applications and utility programs
This project serves as a collection of different free software projects that I'm working on. The major ones are currently "HFSExplorer", "DMGExtractor", and "NTFS-3G for Mac OS X". -
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grepwin
A powerful and fast search tool using regular expressions
grepWin is a simple search and replace tool which can use regular expressions to do its job. This allows to do much more powerful searches and replaces. Note: project has moved to GitHub https://github.com/stefankueng/grepWin -
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The Digital Forensic Tool Testing (DFTT) project creates test images for digital forensic acquisition and analysis tools. These images can be used by a tool developers and owners to test their software.
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wsldl
Advanced WSL launcher / installer. (Win10 FCU x64/arm64 or later.)
Advanced WSL launcher/installer. (Win10 FCU x64/arm64 or later.) Requires Windows 10 1709 Fall Creators Update or later(x64/arm64). Windows Subsystem for Linux feature is enabled. -
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HDGraph
Display disk usage in a smart view, to identify where space is lost.
The first free tool for Windows able to draw multi-level pie charts of disk space ! HDGraph displays graphically the hard disk space usage. It shows all your directories and subdirectories on a single graph, allowing to see the largest ones at a glance. -
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Dokany
User mode file system for Windows
Dokany is the fork of Dokan, a user mode file system library that lets you easily and safely develop new file systems on the Windows OS. When creating new file systems on Windows, you need to develop a device driver that works in the kernel mode on Windows-- a difficult task without technical Windows Kernel knowledge. Dokany makes it easy. It enables you to create these file systems without device drivers, and is completely free to download. It is similar to FUSE, and also offers compatibility with a FUSE file system. -
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DwarFS
A fast high compression read-only file system for Linux, Windows
The Deduplicating Warp-speed Advanced Read-only File System. A fast high compression read-only file system for Linux and Windows. DwarFS is a read-only file system with a focus on achieving very high compression ratios in particular for very redundant data. This probably doesn't sound very exciting, because if it's redundant, it should compress well. However, I found that other read-only, compressed file systems don't do a very good job at making use of this redundancy. See here for a comparison with other compressed file systems. DwarFS also doesn't compromise on speed and for my use cases, I've found it to be on par with or perform better than SquashFS. For my primary use case, DwarFS compression is an order of magnitude better than SquashFS compression, it's 6 times faster to build the file system, it's typically faster to access files on DwarFS and it uses less CPU resources. -
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ShellNewHandler is an Open-Source Tool to enable/disable ShellNew entries, aka New File context menu entries from Windows Explorer in Vista and Windows 7. Check or uncheck items to enable a desktop right-click context menu item. No need to install.
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This is a virtual floppy drive for Windows NT / 2000 / XP / 2003 / Vista / Windows 7 (both 32-bit and 64-bit versions)
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fd
A simple, fast and user-friendly alternative to 'find'
fd is a program to find entries in your filesytem. It is a simple, fast and user-friendly alternative to find. While it does not aim to support all of find's powerful functionality, it provides sensible (opinionated) defaults for a majority of use cases. First, to get an overview of all available command line options, you can either run fd -h for a concise help message or fd --help for a more detailed version. fd is designed to find entries in your filesystem. The most basic search you can perform is to run fd with a single argument: the search pattern. Instead of just showing the search results, you often want to do something with them. fd provides two ways to execute external commands for each of your search results: the -x/--exec option runs an external command for each of the search results (in parallel), or the -X/--exec-batch option launches the external command once, with all search results as arguments. -
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onedriver
A native Linux filesystem for Microsoft OneDrive
onedriver is a native Linux filesystem for Microsoft OneDrive. onedriver is a network filesystem that gives your computer direct access to your files on Microsoft OneDrive. This is not a sync client. Instead of syncing files, onedriver performs an on-demand download of files when your computer attempts to use them. onedriver allows you to use files on OneDrive as if they were files on your local computer. Easily sync files between any number of Windows, Mac, and Linux computers. You can setup your phone to auto-upload photos to OneDrive and edit and view them on your Linux computer. You can switch between LibreOffice on your local computer and the Microsoft 365 online apps as needed when working. Want to migrate from Windows to Linux? Just throw all your Windows files into OneDrive, add your OneDrive account to Linux with onedriver, and call it a day. -
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Frhed is an binary file editor for Windows. It is small but has many advanced features like ability to load big files partially.
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Claude Code Safety Net
A Claude Code plugin that acts as a safety net
Claude Code Safety Net is a safety-oriented framework and example set designed to help developers integrate runtime checks, guardrails, and defensible constraints into agentic systems powered by Claude Code, with the goal of reducing unsafe outputs, erroneous actions, and harmful behaviors in production scenarios. The repository defines patterns and reusable components for validating agent decisions, sanitizing user inputs, and enforcing operational boundaries, making it easier to design fail-safe integrations with both internal toolchains and external APIs. It includes example safety checks that cover common categories like infinite loops, unsafe system commands, data leakage risks, and visibility constraints, which help engineering teams anticipate and defend against unpredictable agent behavior. -
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CssSelector Component
Converts CSS selectors to XPath expressions
XPath expressions are incredibly flexible, so there is almost always an XPath expression that will find the element you need. Unfortunately, they can also become very complicated, and the learning curve is steep. Even common operations (such as finding an element with a particular class) can require long and unwieldy expressions. CSS selectors are less powerful than XPath, but far easier to write, read and understand. Since they are less powerful, almost all CSS selectors can be converted to an XPath equivalent. This XPath expression can then be used with other functions and classes that use XPath to find elements in a document. Not all CSS selectors can be converted to XPath equivalents. There are several CSS selectors that only make sense in the context of a web-browser. Pseudo-elements (:before, :after, :first-line, :first-letter) are not supported because they select portions of text rather than elements.