
Log your dives in seconds. Know your limits before the next one.
The free dive log for recreational divers.
Three taps to log a dive, real residual nitrogen before the next one,
and all your stats, sites, gear and certifications in one place.
Join the revolution.
Divers already love Depthlog.
Why divers choose Depthlog
Log every dive in seconds
Open Depthlog on the boat and log the dive in three taps, under 20 seconds.
Save a dive site once: its coordinates, depth and conditions come back next time.
- 3 taps, under 20 secondsPick the site, confirm, save. No forms to fight while your tank is still wet.
- Your sites, ready to reuseSave a spot once. Coordinates and site details come back on every log.
- Built for the boatMobile-first web app. Nothing to install, nothing to sync, no wet paper to lose.

Know your real limits before every dive
Enter your first dive, the surface interval and your next depth.
Depthlog returns your pressure group, your residual nitrogen penalty and the bottom time you actually have left.
Built on standard recreational dive tables. Air and Nitrox up to EAN40. Free, no account needed.
Repetitive dive planner
Your dive sites, ready to reuse
Save the spots you dive once, then log a dive there in one tap.
Share a site with a buddy, or flip to the map and see your whole diving footprint.

Watch your diving improve
SAC going down. Bottom time managed better. CNS kept in check.
Depthlog turns your logs into trends you can act on, the way you already expect from Strava and Garmin.
Keep your gear under control
Track regulators, tanks, wetsuits, computers and fins.
Depthlog remembers the last service, computes the next revision and reminds you before it is due, so nothing catches you off guard before a trip.
- Never miss a revisionDepthlog computes the next service date and flags every piece of gear as OK, due soon or overdue.
- Service history per itemWhat was done, when and by whom, for every regulator, tank and wetsuit you own.

Track gear from all major brands








































































Your certifications, one link away
Centralize every certification from the major agencies.
Share a public certificate page with a single link: anyone can open it and download the card image.
- One link per certificateNo more searching the phone gallery for a photo of your card.
- Download-ready imageAnyone with the link can download a clean certificate card.

Supports the most famous diving agencies
































Import and export your logs
You have all of your logs in an external application?
No problem, with Depthlog you can use the import system to migrate all of your logs using different formats.
Dive computers often use proprietary software, but with the free Subsurface application you can read logs from computers and import them into Depthlog using various supported formats.
- Supported
- Subsurface native typesSupported
.ssrf
- Supported
Universal csv
.csv
- Supported
JSON object
.json
Supports the most diffused log formats

FAQs
Dive together, log together
Tag your dive buddies: they get the dive ready to save, every field already filled.
Invite your group, share dive sites, and keep a shared record of your trips.
S