Community forum
The OpenStreetMap Community Forum (community.openstreetmap.org or c.osm.org) is the discussion forum provided by the OpenStreetMap Foundation for the OSM community. This forum is intended to replace several older platforms, including help.openstreetmap.org. It runs on Discourse.
You can log in to the forum with your main OSM account. If you don't already have this, see Creating an Account. This is not the same as your OSM wiki login. You never need to create an account directly at the forum site.
An introductory guide for new users has been posted.
Discourse formatting
For formatting, Discourse uses Markdown-it, a subset of BBCode, and a "safe" subset of HTML.
Links to formatting tags and attributes
Using via email
It is hoped that it might be fully usable via email.
Guide
You can reply to an email with just the text +1 and you will be recorded as upvoting a post.
You can create a new topic in a category by emailing the correct *@community.openstreetmap.org address, like in these examples:
The current list can be seen at this link. See also this forum discussion for more detail.
Problems & solutions
- Discourse does not accept emails that are too short. You can add some text from a Lorem Ipsum generator to your message.
- Discourse sometimes deletes quoted text.
To do: Link respective Discourse bug reports.
History
The forum used to run PunBB because of its low resource requirement and speed. During the conversion to a proper international forum with UTF-8 support (see below) the forum switched to FluxBB which is the opensource non-commercial alternative for PunBB.
Authentication
In November 2007 the forum started using the main OpenStreetMap userbase for authentication. Since then there was no need for a separate forum username/password anymore.
UTF-8
OpenStreetMap is very much an international project with users speaking and writing in many languages. Unfortunately this aspect was not properly addressed during the early days and the forum ended up using the default Latin1 characterset instead of the international UTF-8. In fact the first forum did not even have functional UTF-8 support. That the forum also failed to enforce even a specific characterset was troublesome because converting all posts to UTF-8 proved to be quite an ordeal as many posts actually contained multiple character encodings. Luckily, while a few posts ended up garbled, almost everything was moved successfully to UTF-8 over the course of a month (February 2009).
Today, posts can be enjoyed in e.g. Thai, Polish, Russian and many other languages.
OSMF takeover
In early 2016 Lambertus became inactive and after few months of trying to contact with him the forum was eventually migrated to clifford (OSMF controlled server, at the time located in University College London) and a new admin team took over.
Discourse migration
A new forum platform, based on the open-source Discourse forum software, was set up and opened on the community.openstreetmap.org domain in 2022. The goals included replacing aging software and reducing fragmentation of OSM communication channels. The transition was overseen by the forums governance team and migration of content from the old platform was finally completed in March 2023. Existing URLs are now redirected to the new platform.