True North Is Not Magnetic North Screensaver
The True North Is Not Magnetic North screensaver shows magnetic declination from NOAA's geomagnetic calculator, read live and key-less. It's free, runs in your browser, and ESC exits.
How the True North Is Not Magnetic North screensaver works
The saver reads the source described above and draws it on a canvas — no account, no tracking.
Magnetic declination from NOAA's geomagnetic calculator, read live and key-less. A compass points at the field, not the pole — about 20° west in Seattle, 15° east in Maine — and the drift is why charts and survey bearings have to be reissued.
It refreshes on a schedule, so what you see stays current.
Colours and any options can be changed in settings; nothing is stored beyond your own browser.
A worked example
Magnetic declination from NOAA's geomagnetic calculator, read live and key-less. A compass points at the field, not the pole — about 20° west in Seattle, 15° east in Maine — and the drift is why charts and survey bearings have to be reissued.
Settings & tips
- Accent and Background recolour the display.
- Every value on screen comes from the live source — nothing is simulated.
- Press ESC to leave fullscreen.
Frequently asked questions
- Is this real data?
- Yes — it comes from the source named on this page and is refreshed on a schedule.
- Is a key needed?
- No. This source is fully key-less.
- Is it free?
- Yes, and it runs entirely in your browser.