Built by a Woodworker, for Woodworkers
Bad Owl Tool was created to solve the everyday problems that slow you down in the shop: guessing board footage, hunting for a drill bit chart, doing finish coverage math on scrap paper, or trying to level something with a sketchy app. We wanted a single, reliable place to handle all of it—so we built one.
No ads. No upsells. No clutter. Just useful tools that make your woodworking easier, faster, and more accurate.
What You Can Do with Bad Owl Tool
Use Bad Owl Tool as your always-ready digital assistant in the woodshop:
- Board-Foot Calculators – Quickly calculate lumber needs for furniture, cabinets, and custom builds.
- Drill-Bit & Screw Helpers – Find the right bit sizes for pilot holes, taps, and hardware.
- Epoxy & Finish Coverage Calculators – Estimate resin and finish usage before you ever open a can.
- Accurate Levels – Bubble and bullseye style levels tuned for real-world shop use.
- Unit & Measurement Converters – Convert between imperial, metric, thicknesses, and dimensions on the fly.
- Shop Recipes & Finishing Guides – Keep recipes, notes, and finishing systems handy at the bench.
New tools and improvements roll out regularly based on real feedback from the woodworking community.
Start Free: Sign Up, Log In, Build Wiser
Bad Owl Tool runs in your browser and can be installed as a Progressive Web App (PWA) on your phone or tablet so it behaves like a native woodworking app—without an app-store download.
Get started now: app.badowltool.com. Sign up, log in, and take it into the shop. Your woodshop wingman is ready whenever you are.
Powered by the Bad Owl Tool online store
Bad Owl Tool is developed and maintained by us. Every purchase you make at the Bad Owl Tool online store helps keep Bad Owl Tool free and actively developed for the woodworking community.
When you buy tools, finishes, and supplies from Bad Owl Tool, you’re directly supporting the continued development of new calculators, features, and improvements in Bad Owl Tool.
Bad Owl Tool FAQ
Is Bad Owl Tool really free?
Yes. Bad Owl Tool is completely free to use. There are no subscriptions, no paywalls, and no in-app purchases. The app is funded by sales at Bad Owl Tool and by the support of the woodworking community.
Do I need to install anything?
That's up to you! You can use Bad Owl Tool directly in your browser at app.badowltool.com or install it from Google Play or the Apple Store when they become available.
Who is Bad Owl Tool for?
Bad Owl Tool is designed for hobby woodworkers, professional furniture makers, turners, cabinet shops, and anyone who spends time in a woodshop and wants accurate, no-nonsense digital helpers for planning and building projects.
What makes Bad Owl Tool different from other woodworking apps?
Bad Owl Tool is focused on practical, shop-proven tools—not fluff. The calculators and helpers are built around real workflows, and new features are guided by feedback from working woodworkers. It’s meant to be a trustworthy part of your everyday process in the shop.
How does shopping here support the Bad Owl Tool app?
The Bad Owl Tool online store funds the development, hosting, and ongoing improvement of the Bad Owl Tool app. When you shop for woodworking tools, finishes, and supplies at Bad Owl Tool, you’re helping keep the app free and pushing new features and updates forward.
