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GeoJS vs What3Words

Same instrument, two spec sheets — measured, not claimed.

APIGeoJSNEW—What3WordsNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree, no API key requiredFree tier — key may be required
Rate limitUnpublished (no enforced limit stated)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

GeoJS vs What3Words: common questions

Which is more reliable, GeoJS or What3Words?

On our scheduled checks, What3Words leads on measured uptime — GeoJS at —% versus What3Words at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do GeoJS and What3Words need an API key?

GeoJS needs no key, while What3Words requires a free API key. If you want to start calling without signup, reach for GeoJS first.

Can I call GeoJS and What3Words from the browser?

Only GeoJS is browser-friendly — it returns CORS headers over HTTPS. What3Words needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are GeoJS and What3Words free for commercial use?

GeoJS has unclear commercial terms, and What3Words has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.