Offline-first tools that just work.
Beautiful HTML calculators, trackers, and planners. No accounts, no subscriptions, no internet required. Download once, use forever.
Our Tools
Each tool is a single HTML file. Download it, open it in any browser, and start using it immediately. Your data stays on your device.
Small Business P&L Tracker
Track profit & loss like a pro — no cloud, no subscriptions
Wedding Budget Calculator
Plan your dream wedding without the financial stress
Home Budget Planner
Take control of your household finances
Teacher Gradebook
A smarter gradebook that works anywhere
Content Creator Income Dashboard
All your creator income in one dashboard
Side Hustle Income Tracker
Track every gig, every mile, every deduction
House Flip Calculator
Run the numbers before you make the offer
Rental Property & Airbnb Calculator
Analyze any rental deal in minutes
Freelancer Rate Calculator
Stop undercharging — know your true rate
Home Renovation Budget Calculator
Renovate smarter with real-time budget tracking
GLP-1 Weight Loss Tracker
Track your GLP-1 journey — all in one place
Macro Nutrition Calculator
Know exactly what to eat — down to the gram
Self-Employed Tax Estimator
Know what you owe — before April 15th
Invoice Generator
Professional invoices in 60 seconds
Etsy Seller Fee Calculator
Know exactly what you keep on every Etsy sale
Why Offline-First?
Your Data, Your Device
No accounts. No cloud uploads. Everything stays in your browser's local storage. We literally can't see your data.
No Internet Required
Works on planes, in the field, or anywhere without WiFi. Just open the HTML file and go.
Pay Once, Use Forever
No monthly fees. No upsells. One purchase gives you lifetime access to the tool and all future updates.