LinkedIn Post Preview Generator
Paste your draft and see where LinkedIn stops rendering it in the feed. Roughly the first 210 characters on desktop, 140 on a phone, decide whether anyone reads the rest.
Your post
Paste the draft exactly as you will publish it, line breaks included.
Feed preview
Rendered at 555px, the width of a post in the desktop feed column.
The visible window
Cut by the third line break. 317 characters sit behind "see more".
How the feed renders a post
How this works
Why the truncation point is the whole post
A LinkedIn post in the feed is not a piece of writing, it is a preview of a piece of writing. The feed shows roughly three lines, which works out to roughly 210 characters in the desktop feed column and roughly 140 on a phone, then collapses the rest behind "see more". LinkedIn does not publish those numbers and they drift with layout changes, so treat them as a working budget rather than a spec. The point holds either way: a tap on "see more" is the moment someone decides your post is worth their attention, everything past the cut is written for people who already said yes, and the roughly 140 characters before it are doing all the work. Most drafts spend them on throat-clearing.
Line breaks collapse you earlier than you think
The character budget is not the only trigger, because the real rule is roughly three lines and a hard line break gets you there faster than a wrapped one. A draft that opens with three short punchy lines can be cut at 60 characters, well before the 210 budget. That is usually a good thing: a short hook, white space, then a second short line reads far better in a scroll than one dense 210-character paragraph. But you should know which rule is cutting you, because optimising for the wrong one wastes effort. The preview above tells you which one fired.
Links, hashtags, and the reach tax
LinkedIn optimises the feed for time spent on LinkedIn, and posts whose main call to action sends people elsewhere are widely reported to reach fewer of them. LinkedIn has never published a link penalty, so treat it as a strong pattern rather than a rule, and note that the workaround costs you nothing either way: put the link in the first comment, then add a line to the post saying it is there. On hashtags, three to five specific tags is the practical range. Ten generic tags do not multiply reach, they signal that the post was written for an algorithm. Pick narrow ones your buyers actually follow (#outbound, #revops) over category nouns (#sales, #business).
What to check before you hit post
Run four passes. One: read only the visible window out loud, on the mobile setting, and ask whether it would stop you. Two: confirm the first line is under about 100 characters so it does not wrap on a phone. Three: check that no outbound link sits in the body. Four: make sure there is white space every one or two sentences, because a wall of text in a feed is a scroll trigger regardless of what it says. The tool flags all four, but the read-out-loud test is the one that actually changes drafts.