5 log locations · Windows, macOS
CrashPlan logs to %PROGRAMDATA%\CrashPlan\log\ on Windows. 1 other Windows log location is recorded below.
CrashPlan logs to /Library/Application Support/CrashPlan/log/ on macOS. 2 other macOS log locations are recorded below, including paths for 11.5.3 and earlier.
Paths are printed exactly as CrashPlan writes them. Environment variables like %LOCALAPPDATA% and $XDG_STATE_HOME are never expanded, so a path can be pasted straight into a shell. Where a path differs between installer types or shipping flavours, each one is racked as its own card below - why that happens.
%PROGRAMDATA%\CrashPlan\log\- service.log and rotations.%LOCALAPPDATA%\CrashPlan\log\- May be under Roaming instead./Library/Application Support/CrashPlan/log/- 11.6 and later; service.log, backup_files.log, restore_files.log~/Library/Application Support/CrashPlan/log//Library/Logs/CrashPlan/