.OSM

OpenStreetMap Map

Learn about .osm files - OpenStreetMap Map. Find software to open, compatibility information, and alternatives.

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.OSM
OpenStreetMap Map

What is a .osm file?

File Extension Details

The OSM file format is a data format used by OpenStreetMap (OSM), a collaborative project to create a free editable map of the world. OSM files store geographic data, including points of interest (POIs), roads, buildings, and other features, represented as nodes, ways, and relations. Nodes are points with latitude and longitude coordinates. Ways are ordered lists of nodes representing linear features like roads or rivers. Relations are used to group nodes, ways, and other relations to represent more complex features like bus routes or administrative boundaries. The OSM format is typically XML-based, although other formats like Protocolbuffer Binary Format (PBF) are also used for efficiency. OSM data is used in a wide range of applications, including navigation systems, mapping software, and geographic information systems (GIS). The open and collaborative nature of OpenStreetMap makes it a valuable resource for creating and maintaining up-to-date and detailed maps.

Software Compatibility

Programs that can open and work with .osm files

Windows

Compatible Applications

JOSM Compatible
QGIS Compatible
Merkaartor Compatible
Osmosis Compatible

macOS

Compatible Applications

JOSM Compatible
QGIS Compatible
Merkaartor Compatible
Osmosis Compatible

Linux

Compatible Applications

JOSM Compatible
QGIS Compatible
Merkaartor Compatible
Osmosis Compatible
VLC (for some OSM formats) Compatible

Mobile

Mobile Applications

OsmAnd Compatible
Maps.me Compatible
Organic Maps Compatible

Frequently Asked Questions

About .osm files

To open a .osm file, you need compatible software. Here are some options:

  • JOSM
  • QGIS
  • OsmAnd

To convert a .osm file to another format, you can:

  1. Use compatible software Many programs that open .osm files also allow you to save or export them to different formats.
  2. Try online conversion services: Websites like Zamzar, CloudConvert, or Online-Convert allow you to convert files between different formats without installing software.
  3. Specialized conversion tools: Search for '.osm converter' to find tools specifically designed for this file type.

  1. Verify the file extension is correct:
  2. Update your software:
  3. Try alternative software:
  4. Check for file corruption:

Like any file type, .osm files can be safe or potentially risky depending on their source:

  • Always scan files with antivirus software before opening
  • Keep your operating system and applications updated.
  • Be especially cautious with executable file types

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