Code Highlighting
Copied code looks like it does in your editor
OneNotch detects the format of copied code and colors the preview with familiar Xcode and One Dark colors, entirely on your Mac.

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Related features
Color Detection
Copy #4A90D9, rgb(74, 144, 217) or hsl(210, 65%, 57%) and see a swatch. Optionally recognize values like FF0000 without the #.
Rich Link Previews
Copied links show the page title and lead image. Turn previews off to keep links fully offline.
Sounds & Copy Toast
A soft sound when something new is saved, another when you paste, and a small toast under the notch. Pick your sounds or turn them off.