Crosspost Checker
One draft, ten surfaces, and the honest answer to “can I post this as it is?”
- 100% success
Tool input
Overview
About this tool
Takes the whole post — words, images and hashtags — and says per network whether it goes up unchanged, and if not, which of the three is the reason. Because what usually stops a crosspost is not length: it is nine images going somewhere that takes four.
Instructions
How to use it
Paste the post exactly as you would publish it, hashtags included, and say how many images or clips go with it. Every network is checked on all three counts at once.
Why not just count characters
Because length is rarely what stops a crosspost. A twenty-image carousel is fine on Instagram, four items on X and one on Pinterest. Eleven hashtags are fine on Instagram and ten too many for Threads, which links one. A post can be comfortably inside every character limit and still arrive wrong on four networks.
Every one of these fails silently
Nothing here refuses your post. The platform truncates the text, drops the extra images, or ignores the tags — and publishes the rest. You find out from the published post, which is the worst possible time.
Questions
Frequently asked
Why does X count my post differently?
X counts every link as a flat 23 characters however long it is, and counts CJK characters as two. The tool applies that rule for X and grapheme counting everywhere else.
How many images can I post to each network?
Instagram and LinkedIn take 20, TikTok photo posts 35, X and Bluesky 4, and Pinterest 1 per Pin. Extras are dropped rather than queued.
What happens if I go over a hashtag cap?
It depends, and one case is severe: over 60 hashtags YouTube ignores every hashtag on the video rather than the excess. Instagram and Pinterest ignore the surplus only.
Does a link in the caption work everywhere?
No. Instagram and TikTok do not linkify captions, so a URL there is dead text that still spends your characters.
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