Map Test — Verify OpenStreetMap Tiles & Pin Rendering
Free map smoke test for KML Workbench: set a center lat,lon and confirm OpenStreetMap basemap tiles and the teal center marker render in your browser. Isolate tile or network issues before using Map Explorer, Drag and Drop Map, or Circle Generator previews.
Key features
- Minimal center-pin smoke test
- Same OpenStreetMap stack as other map tools
- Confirm basemap imagery loads within seconds
- Ideal after browser, VPN, or firewall changes
What Map Test does
It loads a single center coordinate on OpenStreetMap with no extra geometry — a fast check that map tiles and markers work in your browser before you trust heavier KML previews.
Why use a separate test page?
If Drag and Drop Map or Circle Generator preview fails, Map Test isolates whether the problem is tiles/pins at all versus bad KML data.
Pass criteria
You should see basemap street imagery plus a teal center marker within a couple of seconds. Use +/- controls to zoom and pan.
How to use this tool (best practice)
1) Enter center lat, lon. 2) Update map. 3) Confirm tiles + pin. If OK, open Map Explorer or Drag and Drop Map for real work.
Frequently asked questions
Is this Map Test free?
Yes. It is free on GBP Local Ranker’s KML Workbench at /free-tools/kml-workbench/map-test — no login required.
Map is blank — what should I check?
Network blockers, ad blockers, corporate firewalls, or VPNs that block OpenStreetMap tile CDNs.
How is this different from Map Explorer?
Map Test is a minimal smoke test with one center pin. Map Explorer also plots optional lon,lat lists.
Can I change zoom?
Yes — use the +/- navigation controls on the map widget.
Does it save my center after refresh?
No — refresh resets to the default demo center until you update it again.
What center should I use for a quick test?
Try 17.4401, 78.3489 — the Hyderabad / Gachibowli demo used across Workbench tools.
Do I need a Google Maps API key?
No. This uses free OpenStreetMap raster tiles like other Workbench map tools.
Does it work on mobile?
Yes — pinch zoom and pan work on modern phones when tiles can load.
What if Map Test works but Drag and Drop fails?
Your map stack is fine — inspect the KML file format or coordinate blocks with KML Reader.
Where is the full KML Workbench suite?
Open All KML Workbench Tools at /free-tools/kml-workbench for map explorer, reader, circle generator, and more.