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Facebook post preview
See where the feed cuts your post before you publish it.
0 / 63,206
Preview
Your images are read by this browser and never uploaded. Nothing is saved.
This Facebook post preview lays your text out the way the feed lays it out, with the cut where Facebook puts it. Paste a post into the editor and it renders beside it as you type, with your images paged one at a time.
The cap is 63,206 characters and it is not the number that matters. The feed collapses everything past roughly 477 characters behind “See more”, so the opening lines are the whole post as far as most readers are concerned. Facebook does not document that boundary and it moves with the layout, so the preview draws it as approximate.
A link in the body becomes a preview card under the text and changes the shape of the post; attach an image as well and Facebook shows the image instead. That is the single most common surprise on this network, and it is why the card draws the media rather than only counting it.
Nothing here is uploaded. The images you pick are read by your own browser and never leave it, and nothing is kept when you close the tab.
Questions
How much of a Facebook post shows before “See more”?
About 477 characters. Facebook does not publish the figure and it shifts with the layout, so treat it as close rather than exact.
How long can a Facebook post be?
63,206 characters. Almost nothing reaches it, which is why the cut is the number worth designing around.
Does this tool upload my images anywhere?
No. They are read inside your browser and never sent to us or anyone else. Closing the tab discards them.
What happens to a link in the post?
Facebook renders it as a preview card under the text. If you also attach an image, the image is shown instead of the card.