# Is it safe to delete CoreSimulator logs on Mac?

- URL: https://moreroom.app/folders/simulator-logs
- Item: Simulator logs
- Location: `~/Library/Logs/CoreSimulator`
- Verdict: Safe to remove — Rebuilt or re-downloaded automatically when needed.
- Comes back on its own: yes
- Source: MoreRoom rules catalogue (2026-10-17), by Yando Pte. Ltd.

## What is it?

Log files written by the CoreSimulator service and by individual simulated devices, kept in `~/Library/Logs/CoreSimulator`. They are useful only when diagnosing a simulator problem and usually stay small, but can grow over time.

## What happens if you delete it?

New logs are written as soon as simulators run again. Only the history of past runs is lost.

## How to remove it properly

Quit Simulator, then move `~/Library/Logs/CoreSimulator` (or its contents) to the Trash with Finder’s Go › Go to Folder….