DarnlyPreview your X and LinkedIn post
Write once and see your post the way people will: where LinkedIn cuts it with “…see more”, how X splits it into a thread, and how your pictures get cropped.
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Your hook: the first line
This is all most people see before they decide to keep reading.
On X
On LinkedIn
Click “…see more” or “Show more” in the preview to open the post, like in the app.
X thread, post by post
Post them in this order: post the first, then reply to it with the second, and so on.
Your name and photo on the preview
How the counts work
- X limit
- 280 per post. With Premium, 25,000 in one post, with “Show more” after the first 280.
- X counting
- Links count as 23 whatever their length. Emoji and Chinese, Japanese or Korean characters count as 2. Everything else counts as 1.
- LinkedIn limit
- 3,000 characters per post.
- LinkedIn “…see more”
- After 3 lines of text: about 210 characters on a computer, about 140 on a phone. Empty lines use up lines.
- X pictures
- One picture shows between 3:4 and 2:1; anything taller or wider is cropped. Two to four pictures share a 16:9 grid.
- LinkedIn pictures
- One picture shows between 3:4 and 1.91:1. Two sit side by side as squares. Three or four put one big picture on top and the rest below.
Pictures the wrong size? social image resizer, open graph checker or utm link builder.
More free tools
See all 89 toolsHow it works
- Write or paste your post. The previews of X and LinkedIn update as you type, and the top box shows your first line: the hook most people read before they decide to scroll on.
- Drop in up to 4 pictures to see how each app crops them. Switch between phone and desktop, and light and dark, to see the post the way your readers do.
- Copy it for LinkedIn (with bold if you want it) or for X. If it’s longer than 280 characters, X gets it as a thread: each click of “Copy for X” copies the next post.
Questions
Where does LinkedIn cut a post with “…see more”?
After about 3 lines, which is around 210 characters on a computer and around 140 on a phone. Empty lines count as lines too, so a post that starts with short lines and gaps shows less. The preview measures this for you at each app’s real width.
How does X count characters?
Most letters, numbers and punctuation count as 1. Every link counts as 23, however long it is. Emoji and Chinese, Japanese or Korean characters count as 2. A normal post can have 280. This tool counts the same way X does.
How does it split a thread?
It fills each post up to 280 and then backs up to the nicest break it can find: a new paragraph first, then the end of a sentence, then a comma, then a space. To choose the split yourself, put a line with just --- where you want it.
What does “One long post” mean?
With X Premium you can post up to 25,000 characters in one post. In the feed, X shows the first 280 and then a “Show more” link, so the first 280 still have to do the work.
How does the bold text work on LinkedIn?
LinkedIn has no bold button, so the tool swaps letters for look-alike bold letters from Unicode. Wrap words in **two stars** or tick “Bold my first line”. Use it sparingly: screen readers may read these letters out one by one, and LinkedIn search doesn’t match them.
Are the previews exact?
They use each app’s widths, text size and picture crops, so line breaks and cut-offs land very close to the real thing. Fonts differ a little between phones and computers, so a word or two can move.
Is my post uploaded?
No. Everything happens in your browser. Your text is kept only in this browser so it’s still here when you come back, and your pictures are never saved or sent anywhere.