4 log locations · Windows, macOS
Minecraft Launcher logs to %APPDATA%\.minecraft\launcher_log.txt on Windows. 1 other Windows log location is recorded below.
Minecraft Launcher logs to ~/Library/Application Support/minecraft/logs/latest.log on macOS. 1 other macOS log location is recorded below.
Paths are printed exactly as Minecraft Launcher 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.
%APPDATA%\.minecraft\launcher_log.txt%APPDATA%\.minecraft\logs\latest.log- Older sessions as <date>-<n>.log.gz~/Library/Application Support/minecraft/logs/latest.log~/Library/Application Support/minecraft/nativelog.txt- nativeUpdaterLog.txt for the updater.