Which aspect ratios are supported?

Five presets ship in the picker — Free (custom), 1:1 (Instagram post), 4:5 (Instagram feed), 16:9 (Twitter / YouTube), and 1.91:1 (LinkedIn OG image). Pick the platform preset before exporting so the file isn't cropped.

Do I have to keep the macOS window bar?

No — it is a toggle. Keep it on for code or app screenshots where the traffic-light dots read as 'this is software'. Switch it off for generic design exports, photography and portraits where the dots look out of place.

Are my uploaded screenshots private?

Yes. The image is read by the browser as a data URL and never uploaded. All rendering and export use the html-to-image library, which captures the styled DOM node locally.

What resolution is the PNG export?

Exports use a 2× pixel ratio, so a 1080-px-wide frame renders at 2160 px wide — enough for sharp display on retina screens and most social platforms that downscale to 1080 / 1200 px wide.

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Convert screenshots into social media ready posts with backgrounds and frames

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Upload Image

Click to upload or drag & drop

Aspect Ratio

Padding48px

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