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User Mode File System

Dokan is a user mode file system for Windows.
It allows anyone to safely and easily develop new file systems on Windows operating systems.

Getting Started

Open Source

MIT and LGPL license.
You can browse and contribute to the source code, including the kernel driver.
You can also use it in open source projects and commercial products.

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Multiple APIs

To simplify user mode development, Dokan was wrapped with several languages including C, .NET, Java ...

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FUSE Wrapper

Directly run your FUSE (Filesystem in Userspace) implementation on windows without changes.

FUSE on Windows

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Data as file

Easily mount any kind of data as a virtual file and access it transparently from all your Windows applications. It can literally be anything: files from other locations, stored locally or remotely in the cloud... Creativity will be your limit.

Access Control

Working in user mode has several benefits and access control is one of them. You can have complex and custom access checks even with multiple security layers if you want to.

Be safe

Dokan takes care of the hard stuff and you never have to go deeper into kernel mode. This means you can develop your driver safely without having to fear BSOD at any test. Dokan code is available online since 2007. While people came and left the code remains alive thanks to the open source community.

Driver. Don't.

When you want to create a new file system on Windows you need to develop a file system driver. Developing a device driver that works in the kernel mode on Windows requires highly technical skills.
By using Dokan, you can create your own file systems very easily without writing device drivers. Dokan is similar to FUSE (Linux user mode file system) but works on Windows.

User-mode API. As you like.

Dokan User-mode API provides functions to mount/unmount your driver and several callbacks to implement on your application to have a fully working user mode file system driver.

Additionally to the default provided C library, the API is also available for DotNet, Java, Delphi and Ruby.

FUSE Wrapper.

Dokan FUSE (Filesystem in Userspace) is a wrapper library that makes Dokan compatible with FUSE API. You simply need to rebuild your FUSE source code without changes with Cygwin/MinGW and link against the library to make it work on Windows. Now available by default in the main source repository and installers.

Projects. See it working.

Dokan is used in a variety of projects, a short list below.

Keybase	A cryptographically secure file mount using PGP key.
Nodrive	A confidential encrypted cloud storage.
DokanCloudFS	Access to different cloud storage services as virtual driver (OneDriver, Google Drive, MEGA, ...).
MooseFS	Fault-tolerant, POSIX-compliant, network distributed filesystem
Atmo O	Inter & Intra document aliasing
Kortex Mod Manager	Mod manager for various PC games.
yasfw	Yet Another SSHFS for Windows
Shaman.Dokan.Warc	Mounts WARC files (web archives) as FS.
Shaman.Dokan.Archive	Mounts 7zip/ZIP/RAR files as FS.
fuse-nfs-crossbuild-scripts	fuse-nfs for windows using dokany.
Dokan SSHFS	SSH File System
MLVFS	Magic Lantern Video File System
Win-SSHFS	SSH with SSH.NET File System
RedFS	Single File System
encfs4win	Encryption File System
Opendedup CDFS	Deduplication Based File System
Dokan NFC	RFID / NFC File System
Ninefs	9p File System
WinUnionFS	UnionFS-like File System
MSSQLFS	MS SQL File System
PeoneFS	Pseudo Encrypted and Obfuscated File System
DiscUtilsFs	Allows mounting a plethora of filesystems under Windows (and others) using DiscUtils
ZFS-Win	ZFS File System
FtpUse	FTP File System
ChunkFS	Chunked File System
CueMounter	Cue File System
SrcDemo²	Render smoother Source Engine videos, faster
xbox-iso-vfs	Xbox ISO File System
Mile.Cirno	9p File System for Windows, with TCP and Hyper-V Socket transport support
...	...

Frequently Asked Questions

What is the story of Dokan?

The Dokan Library project was originally created and maintained by Hiroki Asakawa from 2007 to 2011.
It has been maintained from 2011 to 2014 by the community with different fork.
Since 2014, the project is highly maintained by Adrien J. and Maxime C. with the fork Dokany and gracefully code signed by the company ISLOG.

Will Dokany be frequently maintained?

Dokany is highly maintained since it starts. The community is growing and number of contributors (that we ) are also growing every day.

Which Operating Systems are supported?

You can find a full list of supported operating system here.

What's new since Dokan first name?

Until version 0.7.4, Dokany focused to improve and fix Dokan 0.6.0 (by Hiroki Asakawa) without breaking compatibility. You can find the full change log here But in simple words: A lots of fixes, more stability and it is much more near of a real file system than ever.

Is Dokany ready for a commercial product?

It is ! There are still a few things `not available yet` and on the roadmap but these are well documented today on github so if you don't need it, you should be fine. If you do commercial products based on Dokany, please be sure to respect licenses and `be fair` if it becomes a success, it is always appreciated being supported for an open source projects.

What is ISLOG’s relationship to Dokany?

The project is supported by ISLOG company which provide tools, driver certificate for releases, and other kinds of development materials. The project is used internally by our company so some features and bug fixes was developed at our business time, but the project is a personal initiative and mainly supported at personal time.

Support Us. Thank you.

Maintaining a Windows driver and its associated libraries requires time and specific knowledge (ok, as always). We focus on stability and improvement but any help (code contribution, testing, issues resolving ...) is highly appreciated.

Dokan reviving through Dokany fork is a personal initiative and we don't get money from it. If you're making a business based on Dokan or just enjoy it, please consider to support the real current developers using bounties. Alternatively you can also directly use Github Sponsor button. Be fair.

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