Welcome to WebDAV Resources

This site is being produced for the WebDAV community as a central resource for documentation, specifications, software, mailing lists, and other useful items.

What is WebDAV?
Briefly: WebDAV stands for "Web-based Distributed Authoring and Versioning". It is a set of extensions to the HTTP protocol which allows users to collaboratively edit and manage files on remote web servers.

We have prepared a Frequently Asked Questions page as a quick introduction for DAV newcomers.

WebDAV logo (designed by tbyars@earthlink.net)
WebDAV Working Groups
Projects and Software
Papers and Articles

About webdav.org
Older news

Hosted Projects
      DAVLib (MacOS)

Other resources
      Proxy Interop

      WebDAV: RFC4918
          HTML, XML, PDF
      DeltaV: RFC3253
          HTML, XML, PDF
      OrderColl: RFC3648
          HTML, XML, PDF
      ACL: RFC3744
          HTML, XML, PDF
      PropType: RFC4316
          HTML, XML, PDF
      Quota: RFC4331
          HTML, XML, PDF
      Redir: RFC4437
          HTML, XML, PDF
      Mount: RFC4709
          HTML, XML, PDF
      CalDAV: RFC4791
          HTML, XML, PDF
      WebDAV: RFC 2518:
          HTML, XML,
          PDF, PDF (A4),

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December 15, 2007
Apple's MAC OS X server now includes a CalDAV server. CalDAV supporting clients, like Apple's iCal can now remotely schedule meetings using the open, interoperable CalDAV protocol. This is an important step towards broad adoption of the CalDAV protocol, and a future where users can select the calendaring and scheduling application that best suits their needs, rather than being forced to use the (often clunky) client that works with their organization's calendar server.

Joe Presbrey has developed a WebDAV to AFS gateway. The implementation creates a per-user WebDAV server, and uses mod_kerberos for authentication. This allows files to be directly edited in a user's AFS file space. Evaluations of alternate implementation approaches are also described.

PFolders allows WebDAV access to documents stored in the PHProjekt open source content management system.

The <oXygen> XML editor announced improved WebDAV support in version 9.1. WebDAV access is implemented using the Slide package of the Apache Software Foundation.

Omnidrive is an online storage and sharing site that supports WebDAV in its professional level of service (USD $40/year).

StorageSwitch recently announced the release of its StorageSwitch File System Gateway, which provides a CIFS, NFS, FTP and WebDAV interface to Sun's StorageTek 5800 archival data storage system. This permits application developers much easier access to data archivally stored in a StorageTek system.

October 17, 2007
IT Hit has released a C# .NET WebDAV client library, featuring full class 2 (locking) support, as well as Basic, Digest, NTLM and Kerberos authentication.

KDev has released the FoxBox MMS, a device that receives pictures taken by a cell phone, and makes them available via HTTP and FTP. WebDAV can be used for spool management. This makes it ideal for web sites wishing to host photo contests, or otherwise gather cell phone photos.

Konica Minolta released three new print/copy/fax/scan multi-function devices. The bizhub C353, bizhub C253, and bizhub C203 (jeesh, who comes up with these names?) all have scan to WebDAV capability.

Holonyx has open-sourced their RESTORE backup and recovery software, which works with Windows, Novell, Max OS X, Unix, and Linux. Among its many features, it permits secure access to backed-up data via WebDAV. See the RESTORE website and SourceForge project page for more information.

September 18, 2007
ApacheCon US 2007 features presentations on the Java Content Repository (JCR), the Jackrabbit project, and Roy Fielding discussing REST. The conference is November 12-16, in Atlanta, Georgia, USA.

SchoolHouse is personal homework manager for the Mac that allows students to keep track of their classes and due dates for assignments. Instructors can post updates via an RSS feed that can be uploaded using WebDAV. Download for free here.

Plone is an open source content management system with built-in WebDAV support. This article on using WebDAV in Plone explains how to configure Plone to use WebDAV, and how to access Plone via the native WebDAV capabilities on multiple operating systems.

July 31, 2007
The Internet Engineering Task Force (IETF) has approved "HTTP Extensions for Distributed Authoring and Versioning (WebDAV)" as Proposed Standard RFC 4918. This is a new revision of the core WebDAV protocol specification (RFC 2518), which corrects errors in the original specification and includes improvements based on interoperability experience. Current and new implementations of WebDAV should be updated to be consistent with this new specification. An appendix of RFC 4918 provides a detailed descriptions of changes between it and RFC 2518. Congratulations to Lisa Dusseault, Julian Reschke, Geoff Clemm, Cullen Jennings, Elias Sinderson and Jim Whitehead for their hard work on this specification!

The Internet Engineering Task Force has approved "Calendaring Extensions to WebDAV (CalDAV)" as Proposed Standard RFC 4791. This is the core CalDAV protocol specification, and provides a standard way to remotely access and manage calendars. It builds upon the capabilities provided by the WebDAV protocol. This is a tremendous accomplishment, completing an over 10 year long effort by the Internet standards community to develop a remote calendar access protocol. Congratulations to Lisa Duseault, Cyrus Daboo, and Bernard Desruisseaux for their hard work over many years on this specification!

Ewedrive is an online storage and sharing site that uses WebDAV. It has a pay-as-you-go pricing model.

Day Software has released Communique Digital Asset Management (DAM), part of the Communique document management suite. Communique DAM natively supports JSR 170 and WebDAV.

The Hitachi Content Archive Platform (HCAP) version 2.0 can support up to 20PB of storage, and provides access via WebDAV, as well as CIFS and NFS.

November 30, 2006
The Internet Engineering Task Force (IETF) has approved "Mounting Web Distributed Authoring and Versioning (WebDAV) Servers" as Informational RFC 4709. This specification makes it easier for a user operating a web browser to open a WebDAV view of a server. Congratulations to Julian Reschke for his hard work on this specification!

Network Attached Storage (NAS) devices are increasingly supporting WebDAV as a standard feature. Iomega's 250D Series of NAS supports WebDAV as a file access protocol, as does FireWire Depot with their tNASi 5 RAID NAS/SAN tower.

In a similar trend, application specific storage is also supporting WebDAV. Sun has a storage product called Honeycomb that only supports WebDAV or an application programming interface (API) to access data, and does not support traditional lower-level protocols such as NFS and CIFS. Kodak has recently announced they will sell Honeycomb (StorageTek 5800) as Carestream, a picture archiving and communications system for the medical market. Also for archival storage, Archivas Cluster (ArC) is a distributed storage platform designed to support multi-petabyte archives that supports WebDAV (as well as traditional protocols).

The Amazon Simple Storage Service (S3) is an inexpensive web-based storage system that uses a RESTful, S3-specific API for storage. Stefan Eissing crisply summarizes the S3 interface, and discusses design decisions made by S3 and WebDAV. Jungle Disk provides a WebDAV to S3 conversion service, acting as a WebDAV server on your local machine. Similarly, S3DAV also provides a WebDAV interface to an S3 storage account, allowing S3 contents to be accessible via all WebDAV clients, including file system mappers.

Interarchy is a file transfer utility for the Macintosh that, in its 8.2 release, supports WebDAV, as well as the Amazon S3 storage system.

Please contact Jim Whitehead to report a news item. older news
Section Descriptions
WebDAV Working Groups
This area contains information about the IETF Working Groups that are working on WebDAV.
Projects and Software
This is the fun part... what are people doing with DAV? Look here for information on the projects that people in the DAV community are working on. Both open-source and commercial projects are listed here.
This section contains links to the various specifications that are related to DAV, such as HTTP and XML.
Papers and Articles
Several papers, presentations, and articles have been written about DAV, which you can find here.
Other resources
This area contains resources for DAV that don't really fall under the above areas. For example, the FAQ, additional XML resources, and WebDAV-related job listings are located here.
Jim Whitehead
Last modified: Jul 22 2007