How to flush DNS cache on MacHow to flush DNS on Mac with one Terminal command, clear Chrome’s own DNS cache, and when flushing DNS actually helps.
How to check battery health on MacBookHow to check battery health on a MacBook: Maximum Capacity and condition in Battery settings, the cycle count in System Information, and Apple’s limits.
How to change Mac nameHow to change Mac name in System Settings › General › About, how to change the local hostname, and where other devices see the name of your Mac.
How to cut and paste on Mac: text and filesHow to cut and paste on Mac: Command-X and Command-V for text, Option-Command-V to move files, Paste and Match Style, and pasting on an iPhone.
How to stop apps from opening on startup on MacHow to stop apps from opening on startup on a Mac: remove login items, turn off background items and stop windows from reopening.
How to scan documents on MacHow to scan documents on Mac with your iPhone (Continuity Camera), into Notes, or with a scanner in System Settings and Image Capture. Free, built in.
How to boot Mac in safe modeHow to boot a Mac in safe mode on Apple silicon and Intel, how to tell it worked, what safe mode does and how to leave it.
How to convert HEIC to JPG on MacHow to convert HEIC to JPG on Mac for free: one photo in Preview, many at once with Finder Quick Actions, from Photos, and how to make an iPhone shoot JPEG.
How to update MacHow to update Mac in System Settings › Software Update, what to do before you start, how to turn on automatic updates and update App Store apps.
How to clear Gradle cache on MacHow to clear Gradle cache on a Mac: what ./gradlew clean really deletes, how to stop the daemon and empty ~/.gradle/caches, and old Gradle versions.
How to clean up your Mac: delete junk files safelyHow to clean up your Mac with MacWashing: find caches, logs, old installers and leftovers of deleted apps, see what each takes and delete it safely.
How to AirDrop from iPhone to MacHow to AirDrop from iPhone to Mac: let the Mac be found, send from the Share menu, where the files land, and what to do when the Mac doesn’t appear.
How to type emoji on MacHow to type emoji on Mac: Control-Command-Space or the Globe key opens the emoji picker. Search, skin tones, favorites and the Globe key setting.
Mac Wi-Fi not working: how to fix itMac Wi-Fi not working or connected without internet? Restart Wi-Fi and the router, rejoin the network, run Wireless Diagnostics, check VPN.
How to print screen on MacHow to print screen on Mac without a Print Screen key: Shift-Command-3, 4 and 5, where screenshots are saved and how to copy one to the clipboard.
How to clear Firefox cache on MacHow to clear Firefox cache on Mac and keep your sign-ins, bookmarks and passwords: the Clear Recent History window, one site’s data, and what not to delete.
How to find and delete node_modules folders on MacFind every node_modules folder on a Mac with its size, delete the ones you don’t need in Finder, Terminal or npkill, and get them back with npm.
How to delete Ollama models on MacHow to delete Ollama models on a Mac with ollama rm, see which models take space, stop a running model and find where models are stored.
How to unzip files on Mac and zip themHow to unzip files on Mac with a double-click, how to zip a file on Mac with Compress, password-protected zips, and what to do with RAR and 7z.
How to edit a PDF on MacHow to edit a PDF on Mac for free in Preview: add text, highlight, sign, fill out forms, delete and move pages, and what to do about the existing text.
How to clear Safari cache on MacHow to clear Safari cache on Mac without losing history, passwords or sign-ins, how to remove one site’s data, and what each option deletes.
How to create a folder on MacHow to create a folder on Mac: File › New Folder or Shift-Command-N, a folder on the desktop, New Folder with Selection, and why New Folder is dimmed.
How to block websites on MacHow to block websites on Mac with Screen Time: limit adult sites, block a list of addresses or allow only chosen sites, and lock it with a passcode.
How to install a DMG file on Mac: MacWashing as an exampleHow to install a DMG file on Mac step by step, using MacWashing: open the disk image, drag the app to Applications, first launch and Full Disk Access.

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