Save screenshots as JPG or HEIC instead of PNG — via Yann Bertrand, macos-defaults.com

Commandlow riskmacOS 14 Sonoma and later

PNG screenshots of photos or busy screens can be several megabytes each. Switching the format to JPG or HEIC makes much smaller files, which is handy for sharing. The catch: these are lossy, so text can look slightly softer.

Takes effect right away

The easy way

Run the command. Replace jpg with heic, pdf, tiff or gif if you prefer. png is the default.

Command

Run in Terminal (Applications › Utilities).

defaults write com.apple.screencapture type -string jpg

Undo

defaults delete com.apple.screencapture type

On macOS Tahoe 26 and later, supported Macs with HDR displays also offer an SDR (PNG) or HDR (HEIF) choice in the Screenshot app's Options menu.

Sources

Choose screenshot format — by Yann Bertrand, macos-defaults.com
Take a screenshot on Mac — by Apple Support

Source reviewed: 2026-11-02
Link checked: 2026-11-02
Tested hands-on: Not by Oddbyte.Me

Oddbyte.Me hasn't tried this on every macOS version, so keep the undo handy.

screenshotjpgheicpngfile sizeformat

Copy a screenshot straight to the clipboard — via Apple Support

Tricklow risk

If you're pasting a screenshot into a chat or email, you don't need a file at all. Add Control to any screenshot shortcut and the image goes to the clipboard instead of the desktop.

Copy text out of a screenshot with Live Text — via Apple Support

Tricklow risk

macOS can read text in images. Open a screenshot in Preview and you can select the words in it and copy them, just like a document. Great for error messages, slides or anything you can't normally select.

Turn off the floating screenshot thumbnail — via Apple Support

Hidden settinglow risk

After each screenshot, a thumbnail sits in the corner for a few seconds so you can mark it up. If you take lots of screenshots in a row, or the thumbnail gets in the way of your next shot, you can switch it off.

Save screenshots as JPG or HEIC instead of PNG — via Yann Bertrand, macos-defaults.com

The easy way

Command

Undo

Sources

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