Is it safe to delete Bundler cache?
Gem information, and sometimes gems, that Bundler keeps to make installs faster.
Safe
Its owner recreates it by itself when it needs it, and nothing you made is lost.
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What it is
Bundler, the dependency manager for Ruby projects, keeps information about available gems from RubyGems.org here so it doesn't have to fetch it all each time. If its global gem cache setting is on, it also keeps downloaded gems and compiled extensions here. Bundler downloads anything it needs again, and your Bundler settings are stored separately.
If it's removed
The next time you install a project's gems, Bundler fetches gem information again and downloads any gems that were cached here.
How it's removed
Moved to the Trash, where you can restore it.
The free analyzer finds it and explains it. Removing it is Pro, after a review sheet that lists every move and command. It starts checked in the Cleanup checklist, except inside Documents or Desktop.
Sources
Last checked on 26 Sep 2026. Every entry is written and checked by hand; the app and the command-line tool use the same words.