JOSM (listen) (Java OpenStreetMap editor) is a free software desktop editing tool for OpenStreetMap geodata created in Java, originally developed by Immanuel Scholz and currently maintained by Dirk Stöcker. The editing tool contains advanced features that are not present in OSM's default online editor, iD.
Some notable features of JOSM are importing GPX files (GPS tracks), working with aerial imagery (including WMS, TMS and WMTS protocols), support for multiple cartographic projections, layers, relations editing, data validation tools, data filtering, offline work, presets and rendering styles. JOSM provides more than 200 keyboard shortcuts for the core functions.
Many additional features (like tools for drawing buildings, adding Wikipedia links or viewing data in 3D) are available through the plugins. There are more than 100 of them in the repository.
What is JOSM?
JOSM by JOSM is open-source Windows software in the text editors category. It ranks 30th by popularity among text editors in this catalogue. The first release dates back to 2005. It is written in Java, Java, and Java. Besides Windows, it is available for macOS, Linux and cross-platform.
Installation and requirements
The publisher provides MSI installers for 64-bit Windows. The main installer is 91.6 MB. It can be installed for the current user only, without administrator rights. A silent install is possible with the installer’s documented switches. An MSI package is available for deployment with Group Policy, Intune or Configuration Manager.
Updates and version history
The current version is 19613, released on August 12, 2026. The version history goes back to November 1, 2021: 16 releases, all linked to the official files. That is about 3.3 releases a year.
Popularity and file types
The Chocolatey package has been downloaded 108,665 times. Wikipedia has an article about it in 14 of our languages. On Windows it registers 6 file types, including .gpx, .geojson, .osm, .poly and .jos. Similar programs include Notepad++, Atom and Neovim.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- MSI package for managed deployment
- Documented silent install
- Installs without administrator rights
- Also runs on macOS, Linux and cross-platform
- Mature project (since 2005)
Cons
- No native ARM64 build
In short: JOSM is an open-source text editor tool for 64-bit PCs. Administrators can deploy it unattended.
Screenshots
Is JOSM safe to download?
- The file is served by josm.openstreetmap.de, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
B87831EEA6B1DB98DC711A09648720DDFDB2B4927CA8EE62DD3877EF26485B88· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 16 versions ›16 versions over 5 years · about 3.3 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 19613Latest | August 12, 2026 | 91.6 MB | 64-bit MSI |
| 19555 | March 30, 2026 | 91.6 MB | 64-bit MSI |
| 19481 | February 2, 2026 | 85.7 MB | 64-bit MSI64-bit EXE (WiX Burn) |
| 19439 | September 1, 2025 | — | 64-bit EXE (WiX Burn)64-bit MSI |
| 19423 | July 14, 2025 | — | 64-bit EXE64-bit MSI |
| 19412 | June 6, 2025 | — | 64-bit MSI64-bit EXE |
| 19396 | May 6, 2025 | — | 64-bit MSI64-bit EXE |
| 19369 | March 31, 2025 | — | 64-bit MSI64-bit EXE |
Install from the command line
Silent install ›winget install --id OpenStreetMap.Josm -echoco install josm -yscoop install extras/josmmsiexec /i josm-setup.msi /qn /norestartmsiexec /x {03B11EA9-6E1A-3E83-A447-BC4D5CC5FF7E} /qn /norestartRelated guide: How to use winget: install and update apps
Also for other systems
brew install --cask josmflatpak install flathub org.openstreetmap.josmInformation
- Publisher
- JOSM
- Category
- Text editors
- Licence
- GPL v2 or later
- Price
- Free
- Source code
- josm.openstreetmap.de
- Written in
- Java, Java, and Java
- Content rating
- All ages
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- MSI
- Other platforms
- macOS, Linux, cross-platform
- Version
- 19613
- Released
- August 12, 2026
- First release
- 2005
- Added to the catalogue
- October 5, 2022
- Versions listed
- 16
- Updates / year
- 3.3
- Chocolatey downloads
- 108,665
- Website
- josm.openstreetmap.de
- winget ID
- OpenStreetMap.Josm
- Chocolatey package
- josm
- Scoop package
- extras/josm
- MSI product code
- {03B11EA9-6E1A-3E83-A447-BC4D5CC5FF7E}
File types it opens (6)
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is JOSM free?
Yes. JOSM is open-source software under the GPL v2 or later licence.
Is JOSM safe to download?
The download comes from josm.openstreetmap.de, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install JOSM with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can JOSM be installed silently?
Yes. The silent install page lists the exact command for each installer, including msiexec for the MSI package.
Does JOSM run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of JOSM?
The versions page lists all 16 versions with links to their official installer files, back to November 1, 2021.
Can I use JOSM without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to JOSM?
Notepad++, Atom, Neovim, Geany and FontForge. The alternatives page compares them.
