For the garage workshop
Stop buying wood
you already own.
Kerfly is a woodworking companion that runs entirely on your phone. Plan a cut list, price it in board feet, and let the app tell you which board — or which offcut — can actually yield each part. Cut it, and the leftover goes back on the rack automatically.
100% offline · No account · Your data stays on deviceThree ways a workshop loses money
All three happen in a garage with dusty hands and no signal — which is exactly why Kerfly works offline.
Hardwood is priced by the board foot — thickness × width × length ÷ 144. Doing that on a scrap of paper at the lumberyard is how you overspend.
There is a perfect piece of walnut already on your rack. You can't remember it, so you buy another board at $14 a foot.
Which stain, cut and how many coats gave you that colour? Six months later the finish that worked is unreproducible.
A real shop tool, not a checklist
Everything below runs on-device. No sign-in, no sync, no analytics — the app works the same in a basement with no bars.
Per-project cut lists
Every part with quantity and dimensions, ticked off as you cut. Type 1 3/4 or 1.75 — both work.
Lumber & offcut inventory
Boards and offcuts live on one rack, with species, dimensions, location, cost per board foot and running value.
Kerf-aware stock matcher
Ask any part "what can I cut this from?" and get the boards that genuinely fit — blade kerf included — least waste first.
Offcuts bank themselves
Cut a part from a board and Kerfly takes the piece off the rack and files the leftover back as an offcut. No more black-hole scrap bin.
Insights & charts
Bench-hours trends over 7 and 30 days, stock value by species, board feet on hand, and how much of your rack is reclaimed offcut.
Streaks, goals & badges
Log bench time to build a shop streak, hit a weekly hours goal, and unlock nine milestone badges as the sawdust piles up.
Search, tags & filters
Full-text search across builds, species, locations and notes, with tag, stage and offcut filters and four sort modes.
Export & backup
A JSON backup you own, plus CSV exports for your stock, bench log and a cut list you can take to the lumberyard.
Board-foot calculator
A standalone calculator with live pricing, imperial and metric, for the moment you're standing at the rack deciding.
Encrypted finish recipes
Product, coats, grits, dry times and a rating — stored in an encrypted box so a dialled-in finish is never lost.
Today & upcoming
An in-app agenda for builds coming due — no push notifications, so no notification permission is ever requested.
Yours to theme
Light, dark or system, five workshop accent colours, compact density, imperial or metric, your currency and your saw's kerf.
Free. No ads. No account.
Kerfly asks for a single permission — internet access, used only to open this privacy policy inside the app. Your builds, your rack and your finish recipes never leave the phone.
- Price
- Free
- Ads / IAP
- None
- Account
- Not required
- Permissions
- INTERNET
- Data collected
- None
- Works offline
- Entirely
- Android
- 5.0+
Insights
Charts and stat tiles computed on-device from your own logs.
Momentum
Streaks, a weekly goal and badges that reward showing up.
Order
Tags, search, filters, pinning and an archive with undo.
Ownership
Theming, units, kerf — and export/import so the data is yours.