My Dive Logs
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Every dive you've done,
in one place you own.

A logbook for divers who'd rather not lose theirs. It reads your Garmin, keeps your certifications, and hands the whole lot back as a spreadsheet the moment you ask.

Sign in See how it works iOS app in beta — accounts are created there.

Reads your dive computer

Drop in a .fit file from a Garmin Descent and the whole dive comes with it — the depth profile second by second, heart rate, tank pressure, nitrogen and CNS loading. A bulk CSV export works too, for getting years of diving in at once.

Works out the gas

Give it your start and end pressures and it does SAC and RMV, tracks your cylinder, and flags a dive that went past the MOD for the mix you were breathing.

Keeps your cards

Agency, level, number and issue date, drawn as the C-card that's in your wallet — plus every specialty on top of it. The one you're asked for is the one you can hold up.

Prints for a signature

A dive shop wants ink. Export a single dive with its charts, or the whole logbook two to a page, each with a block for a divemaster to sign.

Lets you leave

One CSV holds the lot — every dive, every recorded profile, every certification — and imports straight back. No export fee, no lock-in, no asking.

Doesn't watch you

No analytics, no advertising, nothing sold and nothing shared. Your logbook is read by you and by nobody else, which is the whole of the business model.

This is the actual app.

Not renders. Screenshots, from a logbook with a real dive computer recording in it.

Your logbook — Grouped by month, with depth, time and gas at a glance.
Your logbook Grouped by month, with depth, time and gas at a glance.
One dive — The profile your computer recorded, second by second.
One dive The profile your computer recorded, second by second.
What it adds up to — Totals, bests and trends across everything you have logged.
What it adds up to Totals, bests and trends across everything you have logged.
Your C-card — The card from your wallet, sideways and full screen.
Your C-card The card from your wallet, sideways and full screen.
If it goes wrong — The DAN hotline, your contact, and the first-aid steps — offline, on the boat.
If it goes wrong The DAN hotline, your contact, and the first-aid steps — offline, on the boat.
Dive Mode — Your emergency details on the lock screen, readable without unlocking the phone.
Dive Mode Your emergency details on the lock screen, readable without unlocking the phone.
On your home screen — Dive count, deepest, and whether you are clear to fly.
On your home screen Dive count, deepest, and whether you are clear to fly.
Before you go — The kit list, so the mask isn't still on the kitchen table.
Before you go The kit list, so the mask isn't still on the kitchen table.

See every screen of the setup ›

Made by one diver, for divers.

MyDiveLogs is built and run by one person rather than a company, which is why there's an email address on the support page and a human on the other end of it.

It's a logbook, not a dive computer. It records what you did; it won't tell you what's safe to do next. Plan your dives with your computer, your tables and your training.