Where Does ProtonMail Bridge Store Data?
Bridge v3 config, cache and data trios per desktop OS.
Last updated
Bridge v3 splits config, cache and data per OS conventions. Vault plus lock live in config while gluon plus logs branch in data. README plus source pin every tree.
Desktop builds span Windows, Mac and Linux. Keep config; drop cache.
Where ProtonMail Bridge stores this, by platform
%AppData%\protonmail\bridge-v3
Roaming config with vault plus lock inside. Local cache beside. README plus source agree.
~/Library/Application Support/protonmail/bridge-v3
Same trio under support plus caches homes on Mac.
~/.config/protonmail/bridge-v3
Same trio under XDG homes on Linux.
Frequently asked questions
How do I back up Bridge?
Copy the config folder matching the running OS with the bridge stopped. Vault plus lock travel inside config. Cache plus data need no backup. Restoring means putting config back.
Which bridge version paths?
README plus support plus source locations agree on the v3 tree. Config, cache and data split per OS conventions. Match the running OS.
Notice an outdated path? Let us know.