About zigmaty
zigmaty is a privacy-first GPS speedometer for checking live movement speed directly in the browser. It is built for everyday trips, rides, walks, runs, and travel moments when a clear speed reading is useful.
What zigmaty is built to do
zigmaty is a collection of browser-based GPS speed tools, calculators and practical guides. The live tools answer foreground measurement questions; calculators answer known-value problems; guides explain setup, accuracy, privacy and safe interpretation without pretending that every search intent belongs on one page.
How we research and test a page
Before expanding a topic, we review the leading results to understand the user's unanswered questions, then write an original response rather than translate or remix a competitor. Technical claims are checked against browser documentation, measurement standards or public GPS references, while tool behaviour is verified against the current code and realistic device conditions.
How accuracy claims are handled
A displayed digit is not proof of certified accuracy. We distinguish direct GPS speed from position-derived fallback calculations, show signal context where the interface supports it and state the conditions that can create lag, zero readings or spikes. Safety-critical, legal and navigation decisions remain outside the product's purpose.
How pages stay accountable
Each topic has one intended owner to reduce cannibalisation, with related pages covering genuinely different jobs. Material edits receive a real modification date, sources remain visible, and readers can report a reproducible error or a supported correction through the contact page. We correct the owner page instead of duplicating the same explanation elsewhere.
| Condition or factor | What it means |
|---|---|
| Live tools | Foreground GPS measurement and trip context |
| Calculators | Known values, formulas and worked examples |
| Guides | Setup, limitations and interpretation |
| Corrections | Evidence reviewed on the canonical owner page |
Technical references: MDN Geolocation API; GPS.gov accuracy.
What zigmaty does
zigmaty shows live speed, maximum speed, average speed, distance, elapsed time, GPS accuracy, speed alerts, and local trip history. It supports common units including km/h, mph, and m/s.
Why privacy matters
GPS speed tracking should be clear and respectful. zigmaty calculates trip stats on your device, stores preferences locally, and does not require an account to use the speedometer.
Who it is for
zigmaty is useful for drivers, passengers, cyclists, runners, walkers, train riders, bus passengers, and anyone who wants a clean GPS speed reading without installing a separate app.
How to use it
Open the speedometer, choose your mode and unit, press Start, and allow location access when your browser asks. For the best GPS signal, use zigmaty outdoors or near a window.
Common questions
zigmaty reads GPS only after you allow it. Speed, distance, alerts, and trip history are calculated locally in this browser.
How accurate is this GPS speedometer?
Accuracy depends on GPS signal quality, sky visibility, buildings, tunnels, device hardware, and browser update frequency.
Is my precise location uploaded?
zigmaty does not upload your precise GPS route or live coordinates to a zigmaty server. Trip calculations happen locally in this browser.
Do I need to install an app?
No. zigmaty runs in the browser. On supported phones you can also install it to the home screen for quicker access.
Can I remove saved trip history?
Yes. Use the Clear button in trip history or clear zigmaty site data from your browser settings.
Not a safety instrument
zigmaty is not a certified vehicle dashboard, marine navigation device, aviation instrument, railway tool, medical device, or emergency system. Do not rely on it for legal, safety-critical, navigation, or emergency decisions.