josm
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Description:
Extensible editor for OpenStreetMap
Type: Cask  |  Latest Version: 19481@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: openstreetmap gis editor mapping osm
Install: brew install --cask josm
About:
JOSM (Java OpenStreetMap Editor) is an advanced, extensible desktop editor for OpenStreetMap data. It provides powerful tools for editing complex map features, validating data against OSM rules, and managing layers. Its plugin system allows users to customize the editor for specific workflows like aerial imagery alignment or GPX track management.
Key Features:
  • Advanced OSM data editing with support for nodes, ways, and relations
  • Extensible via a large ecosystem of plugins for specialized tasks
  • Built-in validation and error checking for data quality
  • Support for multiple background imagery layers and GPX tracks
Use Cases:
  • Detailed editing of complex map features like buildings and public transport routes
  • Mapping with local GPS tracks and aerial imagery
  • Reviewing and correcting data quality issues in OSM
Alternatives:
  • iD Editor – Simpler, web-based editor suitable for beginners and quick edits.
  • Vespucci – A powerful, native Android editor for mapping on mobile devices.
Version History
Detected Version Rev Change Commit
Feb 2, 2026 6:35am 19481 0 VERSION_BUMP 51032d8a
Sep 1, 2025 1:10pm 19439 0 VERSION_BUMP 5f03c294
Aug 1, 2024 11:38pm 19160 0 VERSION_BUMP 5a587e48
Jul 8, 2024 8:35pm 19128 0 VERSION_BUMP b3b034ee