Map Sniffer

Find the map data services behind web maps. Captures feature/map service URLs and downloads layers as GeoJSON.

As of June 2026, Map Sniffer has 2 users in the Developer Tools category.

Usersno change0%
2
2
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.0.1
Manifest V3

History

2 snapshots

Tracking since May 23, 2026.

Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
DateUsersRatingReviewsVersion
May 23, 20261.0.1
May 29, 20261.0.1
Now21.0.1

Permissions & access

Permissions
webRequeststoragetabswebNavigationdownloads
Host access
*://*/*FeatureServer*, *://*/*MapServer*, *://*/*VectorTileServer*, *://*/*ImageServer*

Screenshots

Map Sniffer screenshot 1

About

A Chrome extension that captures GIS feature/map service URLs behind web maps,
dashboards, and embedded geospatial apps. Lets you copy the URLs, copy a
ready-to-run `ogr2ogr` command, or download a layer's data as GeoJSON.

Technical

Version
1.0.1
Manifest
V3
Size
18.79KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
jphnbnfnkbljbccgbgglgmpcjefnoaof
Developer ID
uf8ff2389dfa135a7d06d3a74608c9f44
Developer Email
[email protected]
Created
May 22, 2026
Last Updated (Store)
May 22, 2026
Last Scraped
Jun 11, 2026
Website
Support URL

Data sourced from the Chrome Web Store · last verified Jun 11, 2026.