Mopup › Guides
Guides to freeing up space on your Mac
Step-by-step answers to the questions people ask when their Mac runs out of space. Each guide shows how to do it yourself, what is safe to remove, and what to leave alone.
For every Mac
- What is System Data on a Mac?What fills the grey System Data bar in your storage settings, and how to shrink it safely.
- How to clear cache on a Mac safelyWhich caches are safe to delete, where they live, and how to clear app and browser caches.
- How to uninstall apps completelyRemove an app together with the settings, caches and data it leaves in your Library.
- How to find and remove duplicate filesFind identical files and near-identical photos, decide which copy to keep, and remove the rest.
For developers
- How to clear Xcode DerivedData and simulatorsWhat each Xcode folder holds, which are safe to delete, and the commands that clear them.
- How to free up Docker Desktop disk spaceSee what fills Docker's disk image and reclaim space with Docker's own prune commands.
- How to find and delete old node_modulesFind every node_modules folder and its size, remove the ones you don't need, and clear package caches.