Autosave

The autosave feature stores the osm data and Notes layers with modified data in regular interval in order to recover work in case of a crash.

Recover the changes

• Restarting JOSM will offer to open the auto-saved files.
• Backup files can be found in the JOSM preferences folder (subfolder autosave), where they are stored.
  • See preferences help page on how to locate the preference folder.

Prompt after JOSM start

On startup, user will be asked to restore or discard latest snapshot from autosave.

• If discard is chosen, there is no chance to recover work again.

Q&A

How does it know that JOSM crashed?

• It keeps backups which are deleted, whenever a data layer is closed gracefully.
  • If backup files are found on start up, JOSM will assume that it crashed.

Preferences

The preferences are described in File backup under Preferences -> Map settings

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