The FetLife Demographics user script collates demographic information about a user’s friends or profiles that have RSVP’ed “yes” to a event, and displays totals based on groupings of age, sex, and role. This is a helpful metric in quickly determining whether a user is an objectifying troll (e.g., if they list themselves as a “male dom” and their friend list is overwhelmingly “female sub” profiles, ask yourself why this is so), as well as providing an at-a-glance overview of who may be participating in an event.

System requirements

The following software must be installed on your system before installing the FetLife Demographics user script.

Mozilla Firefox

If you use the Mozilla Firefox web browser (version 12.0 or higher), ensure you have the Greasemonkey extension installed (at version 1.0 or higher).

Google Chrome

If you use the Google Chrome web browser (version 23 or higher), ensure you have the Tampermonkey extension installed.


To install FetLife Demographics, go to and click the “Download and install” near the middle of the page:

Download and install FetLife Demographics

If you enjoy this script, please consider tossing a few metaphorical coins in my cyberbusking hat. :) Your donations are sincerely appreciated! Can’t afford to part with any coin? It’s cool. Tweet your appreciation, instead.

If is censored where you are, you can alternatively go to the page for FetLife Demographics and click on “Install“. If the script is also unavailable at, you can download and install it directly from


To use FetLife Demographics, log in to your account and browse to a user profile or an event listed on

Above the list of a user’s friends, or under the list of user profiles who are “Going” to the event, a “Demographics” line will automatically begin collating information about all the relevant users, as shown in the screenshot below:

Screenshot of FetLife Demographics "loading" display.

Once all RSVP’s have been collated, a demographic breakdown will be listed:

Screenshot of FetLife Demographics showing list of users organized by demographics.

To view specific users listed under certain demographic categories, click the “show” button:

Screenshot of FetLife Demographics with user list expanded.

Frequently Asked Questions

Before you report a new issue with FetLife Demographics, please check to ensure your question is not already addressed in the list below.

Can I search for a user by demographic category?

Yes, but you’ll need to install the FetLife Age/Sex/Location Search script to do so.

Change log

  • Version 0.2.1:
    ** Added support for Google Chrome with the Tampermonkey extension installed.
  • Version 0.2:
    ** Tally demographics in user friends lists.
  • Version 0.1:
    ** Initial release.