Download OS MasterMap Viewer

If you want to view GML datasets other than OS MasterMap (UK only), please download our generic GML Viewer

In order to use the OS MasterMap Viewer you first need to register for an activation code which will be emailed you.

Please complete the following registration form to receive an activation code for Snowflake's OS MasterMap Viewer. Your activation code will be emailed to you shortly.

After receiving your code, download the appropriate installer and run it on your machine, typing in the activation code when prompted.

First Name:	(required)
Last Name:	(required)
Email:	(required)
Company:	(required)
Phone:	(required)
Designation/Role:	[choose one] Technical Engineer Technical Lead Project Manager Business Manager Operator Researcher Student Home Interest (required)
Website:
What best describes your organisation? [choose one] Aviation Central Government Data Provider Defence Academic Geology Provider Home User INSPIRE Data Provider Local Government Meteorology Provider National Mapping Agency (required)
Please tick this box if you do not wish to be kept up to date on the OSMM Viewer and other Snowflake product offerings
Privacy Policy : We will not disclose or pass on to any third party the information provided in this registration.