Welcome to the Ultimate Dive Log! This website is the home of the only online Dive Logging Software you will ever need.

Ultimate Dive Log (or UDL for short) is a multi-user, multi-lingual diving logbook, that can easily be extended using templates and plugins. Within UDL you can

• Record your dives in a logbook.
• Summarize your activities in an aggregated report such as total dives, total bottom time, first dive date, latest dive date etc...
• Keep track of all your Dive Sites
• Log your buddies and show some nice statistics per buddy,like number of dives and total bottom time.
• View statistics on almost everything. See how often you use your gear, what the cost is per dive or per minute. Have aggregates per country, site or location.
• Create your own dive-types (like nitrox, night, rebreather, dry-suit dive, boat dive etc..) and show how many times you've been diving like that.
• And last but not least... your own photobook in which you can store picturs of your dives, your buddies, your gear, the marine life you've encountered etc...