Spirit Level + Protractor
A real bubble level and angle finder using your phone's tilt sensors.
- 📱 Device Tool
- ✓ Free
- ✓ No sign-up
- ✓ Private — runs in your browser
- ✓ Any device
Open this on your phone
A spirit level needs your device's tilt sensors. Your current device doesn't expose them (most desktops don't) — but your phone almost certainly does.
Motion access was blocked
Reload the page and tap Allow when asked for motion & orientation. On iOS you can also re-enable it in Settings ▸ Safari ▸ Motion & Orientation Access.
Spirit Level & Protractor
Turn your phone into a precision bubble level and angle finder. Lay it flat to level a shelf, or stand it on edge to find any angle.
Works on phones & most tablets · needs motion-sensor permission
Couldn't read the sensors
Stand your phone on its long edge along the surface, or hold it flat against a wall — it reads the tilt of the long edge.
Tip: tap Calibrate to zero on a surface you know is flat to cancel sensor & case bias. · calibration active
Why you’ll love Spirit Level + Protractor
How to use it
- 01
Open it
No download and no login — the tool is ready right at the top of this page.
- 02
Use it
Enter your details or start interacting. Everything updates live as you go.
- 03
Get your result
Copy, download or share your result in a single tap. That’s it.
About Spirit Level + Protractor
Check if surfaces are level or measure angles with the Spirit Level + Protractor tool. Using your device's built-in tilt sensors, this free spirit level gives you accurate readings for any surface—no physical bubble level needed. Simply open it in your browser, place your phone on the surface, and instantly see if it's level. The bubble level display mirrors the feel of a traditional spirit level, making it intuitive to use for anyone.
Beyond leveling, this tool doubles as a protractor and angle finder. Tilt your device to measure any angle from 0° to 360°. Whether you're checking the incline of a roof, the angle of a cutting surface, or any architectural measurement, the angle finder provides precise readings. No signup required—just open the tool, no data is collected or sent anywhere, and everything runs directly in your browser.
Perfect for homeowners, contractors, and DIY enthusiasts alike, this spirit level and protractor tool eliminates the need to carry separate physical tools for basic leveling and angle-checking tasks. It works seamlessly on any device with a modern browser and built-in motion sensors—smartphone, tablet, or desktop with a gyroscope. Fast, accurate, and always available online whenever you need it.
Popular uses
- ✦ Hanging pictures, mirrors, or shelves level on walls
- ✦ Checking if floors, countertops, or work surfaces are level
- ✦ Measuring the angle of a roof, ramp, or sloped surface
- ✦ Adjusting equipment or machinery to exact angles
- ✦ Leveling garden beds, outdoor structures, or deck posts
Frequently asked questions
How accurate is a phone-based spirit level?
Do I need to download an app or sign up to use this?
What's the difference between a protractor and a spirit level?
Is my data safe? Does this tool collect information?
Is Spirit Level + Protractor free to use?
Is my camera or mic data uploaded?
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