How to Free Up Space on Mac: 7 Proven Steps
Alex Rivero
Lead Performance Engineer
Getting a "Your disk is almost full" alert on macOS is a frustrating bottleneck. Whether compiling code, editing 4K video, or opening creative suites, low disk space degrades performance. Here are 7 actionable steps to reclaim gigabytes instantly.
1. Clear Browser & Application Caches
Browsers like Chrome and Brave, alongside dev tools like Docker and Homebrew, silently stash build caches that grow into 15GB+ bottlenecks.
folder_zip 2. Remove Forgotten Download DMGs & ZIPs
Check your ~/Downloads folder. Sorting by size reveals old software installers, extracted TAR archives, and duplicate documents.
chat 3. Purge Hidden WhatsApp Desktop Media
WhatsApp Desktop silently caches every chat video, voice note, and photo inside deep Library containers. Purging cached attachments while protecting ChatStorage.sqlite reclaims 5GB-12GB.
code
4. Delete Rebuildable Dev Dependencies (node_modules)
Leftover node_modules, vendor, and build caches across older projects waste gigabytes. Deleting them is 100% safe because npm install rebuilds them instantly.
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