Just copy/paste the long URL you want to make shorter in the Long URL field.
The click Create Mini-URL
and you will get a new short URL you can copy/paste in services that don't accept long URLs
(like Twitter).
Yes if you like you can add &preview at the end of each short URL. Or if you want to have a preview for all URLs of this service, just click here: Disable preview.
There is a simple and easy to use API for this service to create new URLs. Just make a GET request to http://kd2.org/r/ with those parameters:
You will get in return two different data, the first will be the success of the query, either 0 or 1 (FAIL or OK for text return) and the second one will be either the error message or the created URL depending if the query succeed or not.
You can make a simple export of the entire database of this service simply by requesting this URL:
http://kd2.org/r/?export.
The output format is a classic CSV.