One File · Powerful fitness tracker
Every session.
Every roll. Every belt.
A martial arts and BJJ log in one HTML file. Sessions, rolls, belt history — for the gym rat tracking the slow climb from white belt to black.
One payment · Yours forever · 14-day refund
- Works fully offline
- Installs as an app (PWA)
- No account, ever
- Yours, forever
Loads once, never needs the internet again. On a plane, in a basement, in a foreign hotel.
Every entry, every chart — stored locally. We never see it. We can't.
No subscription. No upgrades. No re-up next year. One file, yours.
Why log
Why grapplers end up with mat logs.
Mat hours are the currency; the dashboard counts them.
Hours-on-mat tier — White → Black (with realistic hour benchmarks).
Blue belt territory at 500h, Purple at 1500h, Brown at 3000h, Black at 5000h. Visible progression.
30-day submission rate is your real signal.
Subs vs. taps over rolling month. The line moves with skill, not vibes.
Most-drilled techniques top list reveals focus.
Across hundreds of sessions, the techniques you keep returning to surface. Useful for self-coaching.
Multi-art support — BJJ + Muay Thai + boxing + judo + MMA.
Cross-trainers tracked in one file.
across 6 months
white → blue → 2 stripes
no recurring fee, ever
private grappling record
Inside the file
Eight things you'll use every day. Plus a dozen more.
One file. One dashboard. Every feature you'd expect from a "real" app — without the cloud, the cookies, or the £8/month.
Quick add
Log a session from the home screen — three taps and back to your day.
Live insight banner
The single number that matters today, computed in real time from your entries.
Streak calendar
Daily streak across the last weeks. Showing up becomes the default.
Tier progression
Lifetime totals roll into satisfying tier badges as you log.
Sessions by type
Visual split across categories so the pattern becomes obvious without squinting.
Searchable, sortable list
Every entry findable in seconds — search across notes, sort by anything.
Rating system
Star or scale ratings per entry — the patterns surface in the dashboard.
PNG share cards
One-tap share card of your stats, ready for Instagram or a group chat.
Offline, always
Loads once, runs forever without a network connection.
Installs as a PWA
Add to home screen — opens like any native app.
CSV in / CSV out
Bring your old data in. Take everything with you. No lock-in.
No account, ever
No email, no signup, no analytics, no third-party tracking.
Yours forever
If we vanish tomorrow, your tracker keeps working — local file, no server.
Light + dark
Auto-follows the system. Or pick one and stick with it.
Today
Today, at a glance.
The home screen pulls together what just happened and what's coming up — clean enough to actually look at every morning.
- Live insight banner — your unique angle, computed from your entries
- Four-tile stat grid surfacing the numbers that matter today
- Streak calendar showing the last weeks at a glance
- Quick-add button — log without leaving the home screen
- Recent entries on the dashboard so the last log is one tap away
Sessions
Every session, in one place.
Date, discipline, session type, length per row. Sortable, searchable, groupable.
- Search across techniques drilled / used, notes / what to work on
- Sorted by date (newest first)
- Group by session type with one tap
- 10 fields per entry — the right amount of detail
Belts
Every belt, in one place.
Martial art, belt / rank, achieved on, promoted by per row. Sortable, searchable, groupable.
- Search across promoted by, notes
- Sorted by achieved on (newest first)
- 5 fields per entry — the right amount of detail
How it's different
What you give up vs. BJJ apps. Technique video libraries.
Compared with BJJ technique apps.
- Pricing modelPay once · $8.99£8 – £15 / month, forever
- Account requiredNoYes
- Technique video libraryNoYes
- Hours-on-mat tier cardYesNo
- 30-day submission rateYesLimited
- Data stays on your deviceYesNo
- SubscriptionNoYes
The promise
Your mat time is yours.
Not a gym's content.
Offline, always
Open it once, never need the internet again. The file holds the whole app.
Local-first storage
Every entry stored in your browser, on your device. No server sync. No leaks. Nothing to breach.
One payment, forever
No subscription, no upgrade tier, no nag. If we shut down OneFileClub tomorrow, your file keeps working.
Data does not sync automatically between phone and desktop
This is a local-first app — everything stays on the device you logged it on. To use it on both phone and desktop, use the built-in JSON or CSV export on one device and import on the other when you want to keep them in step.
Every view, light and dark.
A look at every screen across both themes — your tracker, populated.
Questions
Real answers, no fine print.
Match results for competition tracking?+
Type field includes 'competition' for sessions; results captured in notes. For deeper bracket tracking, use the comp's official record.
Krav Maga / Tai Chi / Aikido?+
All supported in the discipline field. Same data structure works for any martial art.
Where is my data stored?+
Locally, in your browser, on your device. Nothing is sent to OneFileClub or anyone else — there is no account, no cloud sync, no analytics.
Does it work offline?+
Yes. Once your personalised copy loads the first time, the entire tracker runs from a single HTML file. Airplane mode is fine.
What does 'personalised copy' mean?+
When you buy, OneFileClub stamps a private copy with your licence and deploys it to a unique URL just for you. You bookmark it, install it as an app, or save the file — and the file is yours, even if OneFileClub disappears tomorrow.
What is your refund policy?+
14 days, no questions asked. Email us, we'll process it and disable your private URL.
One payment.
A logbook from white to black.
We'll personalise a copy and email you a private link. Bookmark it, install it as an app, log tonight's roll.
14-day refund · No subscription
