Most fitness apps treat your workout history as their property. Cancel your subscription? Your logs disappear. Want to analyze your progress in a spreadsheet? Not possible — or locked behind a premium paywall.
You wouldn't accept this from a notebook or a spreadsheet. Why accept it from an app?
IronLog stores all your data in your browser (localStorage). It never touches a server. And you can export everything — anytime — with one click.
| Column | Example |
|---|---|
| Date | 2026-07-28 |
| Exercise | push-up |
| Sets | 3 |
| Reps | 12,10,8 |
| Weight (if applicable) | bodyweight |
| Notes | Felt strong today |
IronLog has no backend, no database, no server. All data lives in your browser's localStorage — a standard web technology that's been around for 15+ years. Even if IronLog disappears tomorrow, your data stays on your device.
This is the local-first philosophy: your data is yours, period. No account to lose access to. No subscription to keep paying. No export to beg for.
IronLog is free, no-login, no-ads. Your data stays 100% on your device.
Start Training Free →No account · Works offline · CSV export · Open source