Online Compass & Sensor Tools,
free in your browser.
Find north with a free online compass, measure angles with a digital protractor, check speed, elevation, and more — eight precision instruments, no download needed.
Why Online Compass Pro
More than just a compass.
We built the features competitors are missing — gamification, targeting, history, and eight precision tools in one place.
Gamified Achievements
Unlock badges, complete heading challenges, and build daily streaks — the only compass app that rewards exploration.
True North + Target Bearing
Set a target heading and get audio + visual alerts when you're on course. Works for hiking, sailing, and navigation.
GPS Coordinate Display
See your exact latitude/longitude alongside your heading — perfect for outdoor navigation and geotagging.
Heading History Trail
Visual graph of your compass heading over the last 60 seconds. Track drift and calibration issues at a glance.
8 Precision Tools
The most comprehensive browser-based sensor toolkit: compass, level, ruler, speedometer, and four more.
Zero Install
Everything runs in your browser — no app download, no account needed. Works on iOS and Android.
All Tools
Eight instruments, one site.
Compass
Real-time magnetic heading with True North correction, waypoint targeting, and gamified challenges.
Spirit Level
Check if surfaces are perfectly horizontal or vertical using your device's accelerometer.
Ruler
Measure objects on screen using your display's actual pixel density. Supports cm and inches.
Speedometer
GPS-powered speed and odometer. Track distance, average speed, and top speed in real time.
Inclinometer
Measure the tilt angle of surfaces, slopes, and ramps with precision using your gyroscope.
Protractor
Measure angles between two lines on screen. Tap and drag to set your measurement points.
Noise Meter
Real-time decibel meter using your microphone. Track noise levels over time with history graph.
Altimeter
GPS-based altitude readings with elevation gain/loss tracking for hikes and outdoor activities.
Gamification
Earn badges. Beat challenges. Explore more.
The world's first gamified compass experience. Complete heading challenges, unlock achievement badges, and build navigation streaks — all in your browser.
True North Finder
DonePoint the compass at True North within 2°
Bearing Ace
DoneHit a target bearing within 5° accuracy
Sunrise Navigator
Use the compass before 7am
Cardinal Master
Hold all 4 cardinal directions for 3 seconds each
Open any tool in one tap.
No account. No download. Just open and start measuring.
Start with the Compass →Online Compass — Free Tool to Find North & Check Your Direction
An online compass is a browser-based directional tool that uses your device's built-in magnetometer to display your real-time heading — no physical compass, no dedicated app, and no installation required. Our online compass tool gives you accurate magnetic and True North readings the moment you open it, making it the fastest way to find your bearing anywhere in the world.
How the Online Compass Works
Our free online compass taps into the DeviceOrientation API built into modern browsers. As you rotate your phone or tablet, the compass rose updates in real time to reflect your current heading in degrees from 0° to 360°. We also apply a magnetic declination correction using your GPS coordinates, so the needle points to True North rather than magnetic north — an important distinction when navigating in the field. No download, no sign-up, and no subscription: just open the page, allow sensor access, and your compass is ready.
Key Features of Our Online Compass Tool
- Online compass to find north — The compass rose clearly marks True North, magnetic north, and all four cardinal directions so you can orient yourself in seconds.
- Online compass direction — A live degree readout updates continuously, letting you track any specific heading with precision.
- Online compass and protractor — Alongside the compass, we offer a digital protractor that measures angles between two lines on screen, making angle and direction measurements available in the same browser session.
- Target Bearing Mode — Enter a target heading and receive visual and audio alerts when you're aligned — ideal for hiking, sailing, or any field navigation.
- GPS Coordinates Display — Your latitude and longitude are shown alongside your heading, turning any browser tab into a lightweight navigation dashboard.
- Heading History Graph — A live chart of the past 60 seconds of compass readings helps you spot sensor drift or interference at a glance.
- Gamified Badges & Challenges — Complete heading challenges and unlock achievement badges, making direction-finding engaging for exploration and education.
Who Uses an Online Compass?
The compass is one of humanity's oldest navigation tools, and the online version serves the same broad audience — now with the convenience of always being in your pocket:
- Hikers and backpackers use the compass to maintain a bearing on trails, orient topographic maps, and navigate when GPS signal is weak.
- Sailors and kayakers check their heading without a dedicated marine compass, especially useful during short trips or when a backup reading is needed.
- Photographers plan sunrise and sunset shots by knowing which direction the light will come from at a given location.
- Students and teachers use the interactive compass to visualize magnetic declination, cardinal directions, and bearing concepts in the classroom.
- Construction workers and surveyors verify site orientation using a device they already carry, saving time on simple directional checks.
Is the Online Compass Free?
Yes — our online compass free offering has no hidden fees, no ads interrupting your session, and no account required. Every feature, including True North correction, GPS display, heading history, and gamified challenges, is available at no cost. We believe directional tools should be universally accessible, which is why we built this entirely in the browser with zero barriers to entry.
Accuracy and Compatibility
Compass accuracy depends on your device's magnetometer quality and the surrounding environment. For best results, hold your device flat and away from metal surfaces, speakers, or other electronics that can cause magnetic interference. Our True North correction further improves accuracy by compensating for the local difference between magnetic north and geographic north.
The online compass works on iOS Safari (iPhone and iPad) and Android Chrome. Desktop browsers can display the compass interface but require a device with a physical magnetometer to show live readings. You will be asked to grant sensor permission the first time — this is a standard browser security step and no data leaves your device.
More Than Just a Compass
Online Compass Pro pairs the compass with seven additional precision tools — a spirit level, ruler, speedometer, inclinometer, protractor, noise meter, and altimeter — all running directly in your browser. Whether you need to measure an angle, check a surface is level, or track your elevation on a hike, everything is one tap away. No app installation, no account, no compromise.
Open the online compass now and find your direction in seconds.
FAQ
Frequently Asked Questions
Which direction am I facing — compass online?
Open the Online Compass Pro compass tool in your mobile browser and grant sensor permission when prompted. The compass rose will immediately show the direction you are facing as a degree reading (0°–360°) and a cardinal label (N, NE, E, SE, S, SW, W, NW). Rotate your device to update the reading in real time.
Online compass — where is north?
On the Online Compass Pro compass, True North is marked at the top of the compass rose with a red 'N' indicator. When GPS is enabled, we apply magnetic declination correction so the needle points to geographic True North rather than magnetic north, giving you the most accurate reading possible.
What direction am I facing — compass online?
Visit onlinecompasspro.com/compass on your smartphone, allow device orientation access, and hold your phone flat. The live degree readout and compass rose needle will show exactly what direction you are facing. The display updates continuously as you turn.
How to know direction without a compass online?
If you cannot access an online compass, you can estimate direction using the sun (rises in the east, sets in the west), a traditional analogue watch, or the North Star at night. However, an online compass tool like Online Compass Pro is the fastest alternative — it uses your device's built-in sensors and requires no physical equipment.
How to use an online compass?
1. Open onlinecompasspro.com/compass on your smartphone. 2. Tap Allow when your browser asks for device orientation permission. 3. Hold your device flat and level. 4. Read your heading from the degree display and compass rose. For True North, tap the GPS button to enable magnetic declination correction. You can also set a target bearing to get an alert when you're on course.
What is Online Compass Pro?
Online Compass Pro is a free, browser-based collection of precision sensor tools — including a compass, spirit level, ruler, speedometer, inclinometer, protractor, noise meter, and altimeter. Everything runs directly in your browser with no app download or account required, on any smartphone or tablet.
Is the online compass free to use?
Yes. Every tool on Online Compass Pro — including True North correction, GPS coordinates, heading history, and gamified challenges — is completely free, with no ads interrupting your session and no subscription required.
Does the online compass work on iPhone and Android?
Yes. The compass works on iOS Safari (iPhone and iPad) and Android Chrome. You will be prompted to grant sensor permission once — this is a standard browser security step and no data leaves your device. Desktop browsers display the interface but require a built-in magnetometer for live readings.
What tools are available on Online Compass Pro?
Online Compass Pro includes eight browser-based instruments: a compass (with True North and target bearing), spirit level, ruler, speedometer, inclinometer, protractor, noise meter, and altimeter. Each tool uses your device's built-in sensors and opens instantly in your browser.
How accurate is the online compass?
Accuracy depends on your device's magnetometer quality and environment. For best results, hold your device flat and move away from metal objects or electronics that cause interference. Enabling GPS adds magnetic declination correction, which improves accuracy by aligning the reading to True North rather than magnetic north.
Company
More about Online Compass Pro
About Us
Learn about our mission to make precision sensor tools free and accessible to everyone, with no downloads or accounts required.
Contact Us
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Privacy Policy
Your sensor data never leaves your device. Read how we handle (and don't handle) your data.
Terms & Conditions
The terms of use for Online Compass Pro and all eight browser-based sensor tools.