This Bluesky post preview shows how your caption and image will actually render in Bluesky’s own feed, including the point where Bluesky cuts the caption off behind "a "more" control" and a reader has to tap to read the rest. It is the exact same preview engine as our general social media post preview tool — this page just defaults to Bluesky and answers Bluesky-specific questions below it. Bluesky composer behavior, checked September 2026.
We just shipped a big update to how bulk imports work. Here's a quick look at what changed and why it makes scheduling a month of content faster than before. Let us know what you think!
Bluesky does not appear to truncate a post in the feed behind a "more" control — like X, its composer simply refuses text past the network's 300-grapheme limit, so whatever fits is shown in full. No third-party measurement of a separate feed cutoff was found. Bluesky’s 300-character composer limit is the only ceiling that applies — there is no separate feed truncation point.
A 320-character caption with its hook in the first 80 characters reads completely for a scrolling Bluesky viewer even though the rest is hidden behind "the limit".
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