open-source

There are numerous open source implementations of microformats in addition to the open source code on microformats.org.

specific implementations

Most specific implementations pages have several open source efforts:

• parsers
• validators

github

Many microformats open source efforts can be found on http://github.com, e.g.

• http://github.com/microformats (several projects)
• http://github.com/benward (several projects)
• http://github.com/ryanking/mfbot/tree/master
• http://github.com/matthewlevine/uf-weekly-dinner-template/tree/master

From the recent microformatsDevCamp:

• http://github.com/beaulebens/hCard-LDAP-Service/tree/master
• http://github.com/hober/ufdevcamp-ubro/tree/master
• http://github.com/chirags/Friend-Select/tree/master
• http://github.com/reid/upcoming-attendees/tree/master
• http://github.com/singpolyma/hCard-to-Google-Bookmarklet/tree/master
• http://github.com/amccollum/microtron/tree/master
• http://github.com/peliom/mfgae/tree/master

google code

• http://code.google.com/p/microformats/
• http://code.google.com/p/python-microformats/
• http://code.google.com/p/django-microformats/
• http://code.google.com/p/aump/
• http://code.google.com/p/mf-optimus/

independent sites

• http://mobileonlinebusiness.com.au/uf/vCard_to_hCard_converter.html
  • license is GPL (v2) - view source on the page.

see also

• implementations
• code-issues