Spirit Level + Protractor
A real bubble level and angle finder using your phone's tilt sensors.
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
Instant & free
No signup, no paywall, no limits — Spirit Level + Protractor works the moment the page loads.
Completely private
Everything runs in your browser. Nothing you enter is ever uploaded or stored on a server.
Works on any device
Fully responsive and touch-friendly — use it on your phone, tablet or desktop.
Uses your real device
Taps into your actual camera, mic or motion sensors — right in the browser.
How to use it
Open it
No download and no login — the tool is ready right at the top of this page.
Use it
Enter your details or start interacting. Everything updates live as you go.
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
Frequently asked questions
Modern smartphone and tablet sensors are quite accurate for typical leveling tasks, usually within 1-2 degrees. For basic home projects like hanging shelves or checking if a surface is roughly level, a digital spirit level is reliable. For precision work requiring extreme accuracy, a physical spirit level is still recommended.
No. This spirit level and angle finder runs completely in your web browser—no app download or signup required. Just visit the page and start using it immediately. It works on any device with a browser and motion sensors.
A spirit level checks if a surface is perfectly horizontal. A protractor or angle finder measures any angle between 0° and 360°. This tool includes both features—use the bubble level display to find level, or read the precise angle measurement for any tilt.
Yes, your data is completely safe. This tool uses only your device's local sensors and runs entirely in your browser. No data is sent to servers, no tracking, no signup—everything stays on your device.
Spirit Level + Protractor is 100% free — no signup, no watermarks and no usage limits. It’s one of 200+ free tools we build and give away.
No. All sensor data is processed live on your device and never leaves it or gets stored.
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