Best Open Source Mapping Software 2026

Mapping Software

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Browse free open source Mapping software and projects below. Use the toggles on the left to filter open source Mapping software by OS, license, language, programming language, and project status.

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1

GeoNetwork opensource - Metadata Catalog

A web based Metadata Catalog Server for data description and discovery. Supports both generic and geospatial data discovery. It implements international standards (e.g. ISO19115/19139/19119, ISO19115-3, DCAT-AP, CSW 2.0, OGC API Records). It originates from the United Nations and is used by many governments as geoportal software. Active development and discussion takes place on GitHub and OSGeo Discourse. You can also connect directly with the companies supporting the development. Source code available on github https://github.com/geonetwork/

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Downloads: 121 This Week

Last Update: 2025-10-07
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2

OpenOrienteering

Former project page

See https://www.openorienteering.org/apps/mapper/

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10 Reviews

Downloads: 17 This Week

Last Update: 2018-09-25
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3

Navit

Modular, touch screen friendly navigation system with GPS tracking, realtime routing engine and support for various vector map formats. Works on a wide range of devices, from computers to smartphones.

28 Reviews

Downloads: 13 This Week

Last Update: 6 days ago
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4

p.mapper

A PHP and JavaScript Web mapping framework and demo application for MapServer (see http://mapserver.gis.umn.edu) based on MapScript/PHP.

5 Reviews

Downloads: 0 This Week

Last Update: 2016-05-29
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