Workbench
Paste the screenshot, pick where it is going, add the line that makes the point. The backdrop is built from the colours already in the image, so the post looks like your product rather than like a template.
Paste a screenshot
⌘V · or drop a file · or click to browse
Take the screenshot and press the paste shortcut on the page. No file dialog, no upload, no waiting.
A window frame reads as software, a phone frame as an app. Plain works when the screenshot already has its own edges.
Wide formats have room for a headline in a column next to the image. A handful of words: the post is scrolled past, not read.
The copy button puts the finished image on your clipboard, so it goes straight into the composer without touching your downloads folder.
1600 by 900 is the preset here. It fills the width of the timeline and survives the crop that a taller image would get. If you are unsure which platform the image will end up on, that ratio is the safest choice.
Yes, beside the screenshot or above it, with an optional second line. Text drawn into the image still reads when a platform truncates your post, and it survives being reshared without the original words.
No. The palette reading, the frame, the shadow and the export all happen on a canvas in your browser. There is no image endpoint in this product, and the content security policy pins outbound connections to this site.
Yes, the copy button places the PNG on your clipboard. Chrome and Edge support this fully; Safari and Firefox restrict clipboard images, so there the button falls back to a download.
Nothing. Every size, frame and export scale is open, with no account. Exports carry a small mark in the corner, which is the only thing asked in return.
Making a set for the App Store instead? That workbench is over here.