DualProof — Offline Time Tracking

A complete clock-in, scheduling, and timesheet system that runs entirely in the browser — no install, no cloud, no fees. Built for small teams who need payroll data without the payroll software price tag.

Offline One-Time Purchase Local Data v2

Everything your team needs, nothing they don't

🕒

PIN-based clock-in / clock-out with break tracking

📅

Weekly schedule builder with automatic hour totals

📋

Print-ready dual timesheet layout

⚠️

Manager report with overtime alerts

💾

JSON backup & restore — full data portability

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Works on any device with a browser

Time tracking that doesn't quit when the internet does

DualProof v2

One-time setup. Lifetime use. Because your payroll shouldn't depend on a subscription.

🕒 Clock-In 📅 Schedule 📋 Timesheet 🔑 PIN

How It Works

Open in Any Browser

DualProof is a single HTML file. Save it, open it, and it works immediately. No install, no sign-up, no server required.

Set Up Your Team

Add employees, assign 4-digit PINs, and build your weekly schedule. All data is saved locally in the browser.

Clock In & Track

Employees punch in with their PIN. Breaks and clock-outs are tracked automatically with accurate hour totals.

Print & Backup

Generate printable timesheets for payroll. Export JSON backups anytime to move data between devices.

Get DualProof

DualProof is a private offline tool. Contact us for licensing or a custom demo tailored to your business: cooperdave035@gmail.com

Ask About DualProof →