Claude desktop app eats 19.5GB of disk, with Runtime alone taking 16.3GB

LorestForest · reddit · 2026-10-20

A Reddit user complains that the Claude desktop app is consuming massive disk space. A screenshot of the built-in Storage panel shows 19.5GB used (a lower bound), including 16.3GB for the Runtime (Cowork workspace plus two installed Claude Code versions), 2.4GB for code sessions and worktrees, 388.9MB for 69 inactive Cowork tasks, and 452MB of caches and logs. The panel allows per-category inspection and cleanup.

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