Microformats Implementations

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This page lists the applications, plugins, sample code, services, tools that produce or consume microformats.

help improve this page

update for microformats2

This page needs to be updated for [[microformats2] implementations!

This page should also focusing on listing primarily user-centric (e.g. social readers) or major (e.g. search engines) implementations, and put any comprehensive lists on vocabulary-specific pages of implementations and examples.

One exception for classic microformats:

  • Active major/popular implementations are classic micoformats should still be included on this page.

Other classic microformats implementations should be moved from this page to their particular microformats specific -implementations page, perhaps noting at the top of those pages that those implementations themselves need to be verified to see if they still work, or should be moved to a "Past Implementations" subsection.

prior note to improve

This is only a partial list. If you know other services or tools for or supporting microformats, please add them to this page, link to their implementors, and list what specific microformats they support.

When you find an implementation:

  1. Make sure that it is an implementation, rather an publishing example (e.g. hCard examples in the wild, hCalendar examples, et.c).
  2. Note the name of the tool or service and the name of the developer(s) who built it.
  3. Add a third level heading with the name of the tool/service to the Applications / Plugins / Services / Tools section below, sorted alphabetically by name of tool/service. e.g.

    === Name of Tool ===

  4. Add a top level list item just below the heading with an external link to the tool/service, along with a link to evidence of their support for microformats, and mention (and locally link) each microformat that is supported. E.g.

    * Link to tool/service, link to their blog post announcing support for e.g. [[hCard]] and [[hReview]]

  5. Add a nested list item and local to wiki hyperlink the Name of Developer to a fragment identifier in the implementors page, e.g. Apple Computer would be linked like this:

    ** by [[implementors#Apple_Computer|Apple Computer]]

  6. Check to see if there is an entry for the developer in the list of implementors, if not add them there. Add a link to the developer's home page followed by "has implemented microformats in:".
  7. In the entry for the developer, add a list item and local to wiki hyperlink the Name of Tool to a fragment identifier in this page, e.g. X2V would be linked like this:

    * [[implementations#X2V|X2V]]

  8. Save the page and make sure that each fragment ID local hyperlink when clicked scrolls you to the right spot (for the developer, and for the tool). Make any fix-up edits as necessary. That's it!

Implementation Details

If there are implementation details worth noting, add them them as nested list items under the item for the implementation itself. If the details subsection grows too big for a specific implementation, feel free to move the details to their own page and leave a link in place on the implementations page.

Reporting Bugs

Similar to implementation details, in short, put-it-on-the-wiki. In particular, add bug reports, with URL(s) to a valid demonstrative test case(s) of course, to the listing of an implementation on this page, OR on the specific implementations wiki page (e.g. hcard-implementations). Please describe why you think it is a bug (user interface, cosmetic, violates a spec page, e.g. for problems parsing hCards, reference which part of hcard-parsing the implementation appears to not be following).

If you have a sense of urgency for getting that particular bug fixed in that implementation, you may email microformats-dev with the URL of that implementation on the wiki page, and *summarize* the bug (the full description being on the wiki page instead).


Most microformat specifications have an "implementations" section, e.g.:

In addition, some microformat specifications have separate implementation pages:

Applications / Plugins / Services / Tools

This is an alphabetical listing of all applications, plugins (grouped with their app/tool), services and tools that implement microformats, along with the list of microformats that are supported, and the company and/or developers responsible for it.

As a user, the implementations listed below will automatically help you use microformats and help your data portability and interoperability with other apps and services.

Please help complete this list! If you know of additional apps/plugins/services/tools that support microformats, please add them!

Note: this section is only for listing specific implementations. The list of implementors is in the Companies / Developers / Organizations section on the implementors page.


.Mac Webmail


  • AlchemyPoint is a structured web / mashup platform that supports parsing hCard, rel-tag and other microformats.






  • Bugzilla 3.1.1 includes some microformats on show_bug.cgi and a few other places.


  • cmSiteNavigation extension for Firefox make use of links marked with a "rel" value, and parses additional link types also.
    • This seems to use rel values defined in the HTML 4 spec, not microformats. This is more of a POSH implementation than a microformats implementation.

Community Server


  • Built for SXSW 2007, Conferenceer supports hcalendar and hcard.



Delicious Generation


  • Digg supports hCards for profiles and rel-me for identity consolidation (though they currently mix rel-nofollow with rel-me, negating these links).


Microformats Extensions


Upcoming module for Drupal





Flickr People

Flickr Photos

  • Flickr's geo tagged photos are marked up with the geo microformat. Unfortunately, as of August 2010, their new page design does not expose the microformat in a machine readable manner.

Flock Web Browser

Google Chrome

Google Search

Google Blogger

Google Creative Commons Search

Google Maps

Gravatar Commenters as hCards

  • Andy Hume added code to his blogging software to automatically mark-up the names and URLs of commenters on his blog with hCard.
    • by Andy Hume
    • Andy - any chance of open sourcing your code to turn Gravatars into hCards?


  • Google hCalendar - Adds hCalendar data to Google Calendar and/or Hosted Exchange
  • Social xFolk - Adds xFolk links to social bookmarking sites del.icio.us and ma.gnolia.
  • Monkeyformats - a collection of GreaseMonkey scripts that add actual hCard and hCalendar microformat markup to several international phone directories.

hCalendar creator

hCard to Gmail Service

  • hCard to gmail is a bookmarklet / service which will convert hCard formatted data to the .CSV file for importing to gmail.

hCard creator

Helios Calendar

hKit Microformats Toolkit for PHP5

hReview creator

iChat buddy list to hCards

Internet Explorer





Live Clipboard




  • Publishes and aggregates hreview content - The LouderVoice site provides a variety of tools to publish hreview to blogs and it also aggregates hreview content from any registered RSS Feed so that users can search/rate/collect distributed reviews.


Mash Maker


Maxthon is a browser for Microsoft Windows that uses the Trident rendering engine and provides additional user interface. Maxthon has built and published a plugin for their browser that recognizes microformats in web pages and allows users to take action with them, similar to Operator for Firefox.

Microformat Base

Microformat Bookmarklet Overlay

Microformat Parser for Ruby

Movable Type

See also movable-type.


National eXtension Initiative

Nature Network Boston

Nature Protocols


  • NetNewsWire is an easy-to-use RSS and Atom reader for your Mac. NetNewsWire 3.0 detects, extracts and converts hcard and hcalendar data from feed entries.

Netscape Navigator




  • The Open-Xchange collaboration appliance supports publishing and subscribing of contacts in hCard format (in addition to exporting vcard) officially since v6.16. The format is extended by additional fields (like "date of marriage") in the OXMF microformat.


  • Optimus. Output formats: XML, JSON, JSON-P.


Portable Social Network Profile Parser


PostNuke is an Application Framework/Content Management Systeme


  • Optimus. Output formats: XML, JSON, JSON-P.


  • Profiler works as a proxy service adding microformat profiles to documents that appear to contain microformats.

Realcom HAKONE for Notes

Realcom KnowledgeMarket



Spanning Salesforce


Sivitols is a Java library for microformats. Currently only the xFolk RC1 standard is implemented, but additional microformat support is planned. This library is being written and maintained for a tag sharing project undertaken by Video Vertigo.

Annoucement, Docs

Safari Microformats plugin

The Safari Microformats plugin notifies you when the author of the website has published Microformats and allows you to easily import hCards and hCalendars in Address Book and iCal. This plugin was inspired by the idea and mockup of Jon Hicks.

Safari Microformats Plugin

  • Note - the latest version, 3.1, currently only works w/Mac OS 10.5 (Leopard)


  • SPRACI - nightlife/events - hCalendar published in events listings, aggregator can read hCalendar




Technorati Search

Technorati Tags

  • Technorati Tags pages aggregate blog posts tagged with the rel-tag open tagging standard, in addition to recent tagged photos and links.


Microformats Plugin




Getting Started

tt_address extension

TIMTAB extension

  • TIMTAB - XFN support for blogrolls with the TIMTAB weblog extension for TYPO3


  • Tweeterboard supports [hcard|hCard]], and XFN on profile pages (example).




VIREL Microformats Search Engine




  • Brian Suda has created several XSLT files to extract microformats from HTML. From that the X2V webservice/favelet emerged. The XSLT and favelet extracts hCard and to produces .vcf (vCard) files and hCalendar to produce .ics (iCal) files. Also in the labs is a universal XMDP validator and a site-wide search spider that recognizes 'no-follow', 'license' and other microformats so they can be used in a more semantic way when displaying search results.



  • See XFN visualization example at IBM's Many Eyes made using data extracted with xfn-spider

Yahoo Creative Commons Search

Yahoo Local

Yahoo Tech

Yahoo UK Movies

Yalwa - Local directory

Example: Yalwa Listing


  • Yedda supports hCard for exposing users information, hAtom for exposing data that is already exposed via feeds (like list of questions and answers) and rel-tag for every tag used to tag questions and users.


See debugging-tools.

Search engines

See search-engines

Companies / Developers / Organizations

See implementors

The following have been moved from the sections above due to problems, stated below:

Publishers and Content Hosting Services

This section is a stub. You can help the microformats wiki by expanding it.

Publishers and content hosting services are listed on the individual "examples in the wild page". You may list major publishers here along with links to their respective examples in the wild pages.


Twitter supports: hAtom, hCard user profiles, rel-me


Some notes on initial thoughts around Guidelines and Strategies for Implementing Microformats


Past implementations (e.g. sites that have gone offline).

Technorati Contacts Feed Service

  • 2005-2011 http://feeds.technorati.com/contacts/ Technorati Contacts Feed Service a deployment of X2V to convert hCards to vCard (.vcf) format.

Technorati Events Feed Service

  • 2005-2011 http://feeds.technorati.com/events/ Technorati Events Feed Service a deployment of X2V to convert hCalendar events to iCalendar (.ics) format.

Technorati Microformats Search