Do you use Telegram, Slack, WhatsApp, or Discord on your Mac? If so, your internal SSD is quietly harboring gigabytes of old video memes, voice messages, profile pictures, and animated stickers that you viewed months ago and will never look at again.

Because many modern desktop chat apps are built on Electron (an embedded Chromium browser), they cache web media aggressively in ~/Library/Application Support/ rather than the standard system cache folder. Over time, these caches swell to 15 GB–30 GB.

Where Messaging Apps Store Their Caches

  • Telegram:~/Library/Group Containers/6N38VWS5BX.ru.keepcoder.Telegram/
  • Slack:~/Library/Application Support/Slack/Service Worker/CacheStorage/
  • Discord:~/Library/Application Support/discord/Cache/
  • WhatsApp:~/Library/Containers/net.whatsapp.WhatsApp/Data/Library/Caches/

How to Safely Clear Them Without Losing Chat History

Modern messaging platforms store your chat messages securely in the cloud. Purging local media cache files removes only the local cached copy; if you ever need to view an older photo or video again, clicking it in the chat will simply re-download it. MagicMacCleaner detects these messaging caches and allows safe, one-click purging.

Apple Ecosystem Synergy: Stop iPhone Clutter from Bloating macOS Storage

Because macOS and iOS are deeply integrated through iCloud Photos and AirDrop, clutter on your iPhone inevitably spills over onto your Mac. When your iPhone camera roll is stuffed with duplicate bursts and uncompressed 4K videos, iCloud Photo Library continuously downloads high-resolution caches and database thumbnails into ~/Library/Containers/com.apple.photolibraryd, inflating your Mac's "System Data".

  • Clearly Smart Storage Cleaner: Scans your iPhone library using on-device machine learning to compress heavy videos by up to 75%, detect identical and blurry photos, and merge duplicate contacts.
  • Swipe Photo Cleaner: Turns tedious camera roll cleanup into a satisfying 5-minute task with intuitive Tinder-like swipe gestures—swipe right to keep, swipe left to delete.

Ecosystem Cleanliness: Two Sides of the Same Coin

Decluttering your iPhone directly relieves pressure on your Mac's iCloud cache and local sync databases, keeping both devices running fast and responsive.