Find answers about mapping tools, export formats, contour accuracy, account sign-in, memberships and credits.
Choose map styles, view and convert coordinates, plan routes, analyze isochrones, visualize terrain and contours, and export map images.
ZZMap helps simplify workflows for planning maps, route maps, location maps and lightweight GIS data preparation.
Choose PNG for map images in reports, posters or display boards, GeoJSON for processing geographic features in GIS software, or SVG for editing vector graphics.
Choose DXF to use contour lines in CAD software. Available formats depend on the selected data source. Contour DXF files do not include the full basemap, roads or place names; check the coordinate system and units before exporting.
They cannot replace engineering surveys or legally certified mapping. Contours are calculated from online terrain data and your settings, and are suitable for terrain visualization, route basemaps and CAD / GIS reference.
Changing the contour interval changes the elevation spacing between lines, not the accuracy of the source data. Engineering work requires project-approved survey data, coordinate parameters and professional review.
You can register and sign in with email and password, use Google sign-in, or reset your password by email.
During eligible campaigns, the registration page displays an invitation code field for referral rewards.
Scan the purchase QR code on the membership page to buy a plan and receive a code.
Return to the membership page and redeem the code. Credits and membership status will be applied to your current account.
Signing in and registering both require accepting the Terms of Service and Privacy Policy.
These pages explain account rules, data handling and refunds so that you can review them before using an account.
The coordinate converter supports WGS84, GCJ02 and BD09 coordinate systems.
Convert between GPS coordinates, the coordinates commonly used by Amap and Tencent Maps in China, and Baidu Maps coordinates.