SystemRequires admin/root
System Crash Reports
macOS writes system-wide crash reports, hang reports, spin reports, and watchdog termination logs into /Library/Logs/DiagnosticReports when apps, background services, or system processes stop responding or exit unexpectedly. These .crash, .hang, .spin, and related diagnostic text files are generated by the operating system for post-mortem debugging and can accumulate quickly on shared Macs or machines with recurring faults; Kudu removes old report files from this system log location without touching documents, accounts, settings, or app data.
Why clean System Crash Reports?
- Repeated app or service crashes can generate hundreds of DiagnosticReports files, and the visible symptom is /Library slowly consuming gigabytes of storage even though no personal files were added
- A stuck login item, browser helper, or background agent that crashes in a loop floods the report directory, which users notice as the same app relaunching repeatedly while disk space keeps dropping
- After a bug is fixed or an unstable version is removed, old .crash and .hang logs remain behind and make it harder to spot current failures because Console and support workflows are cluttered with outdated reports
- Frequent kernel-adjacent or watchdog-related failures can leave many timestamped reports from the same root cause, and the practical symptom is a noisy DiagnosticReports folder that obscures whether the problem is still happening now
- On multi-user or lab Macs, system-wide crash logs from many different processes accumulate in one admin-owned location, leading to unexpectedly large system log storage that ordinary home-folder cleanup does not reduce
- Large numbers of text-based diagnostic reports increase file count and directory clutter, which users often discover when backup jobs, disk usage scanners, or support bundles take longer because they include years of stale crash logs
What gets cleaned
Cache paths Kudu targets
macOS
/Library/Logs/DiagnosticReports |
Frequently asked
Common questions about System Crash Reports
Related cleaners
Free & open source
Download Kudu and reclaim your disk space.
Available on Windows, macOS, and Linux. No account required, no feature gates, no telemetry without consent. All cleaning targets are open source and community-auditable.