Packaging on the Web

W3C Working Group Note

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Jeni Tennison, Open Data Institute
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This document describes an approach for creating packages of files for use on the web. The approach is to package them using a new application/package media type. To access packages related to other files on the web, clients that understand packages of files look for a Link header or (in HTML documents) a <link> element with a new link relation of package. Other formats may define format-specific mechanisms for locating related packages.

Status of This Document

This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at

The Technical Architecture Group (TAG) has discontinued work on this document. The specification should not be referenced in this form or implemented as-is.

Please consult the WICG WebPackage repository for continuing work on this subject.

This document was published by the Technical Architecture Group as a Working Group Note. Comments regarding this document are welcome. Please send them to (subscribe, archives).

Publication as a Working Group Note does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress.

This document was produced by a group operating under the W3C Patent Policy. W3C maintains a public list of any patent disclosures made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains Essential Claim(s) must disclose the information in accordance with section 6 of the W3C Patent Policy.

This document is governed by the 1 March 2017 W3C Process Document.

1. Looking for the obsolete Specification?

Please consult the WICG WebPackage repository for continuing work on this subject.

However if you want to read the last specification from the TAG, see the 15 January 2015 draft of this specification for the full content at the time that the TAG discontinued its work.