Captions that sound like you, not a template.
Drop in a rough idea below and get a real Instagram caption back in seconds, free, no account needed.
Your Instagram version will appear here.
Your X version will appear here.
Your LinkedIn version will appear here.
How it works
Describe the post
Type a rough idea, a note, or even a half-formed thought, no need to write a full caption yourself first.
Get three platform versions
Growpost writes an Instagram caption plus matching LinkedIn and X versions at once, so the same idea doesn't need rewriting per platform.
Copy it, or save it
Copy the caption straight to Instagram, or create a free account to save your brand voice and schedule it on a calendar.
Why generate three platforms, not just one
Most caption generators only know one platform, so a good idea for Instagram has to be rewritten by hand for LinkedIn or X. Growpost treats the idea as the source of truth and rewrites the format around it, not the other way around.
This is the same generator that runs inside the full Growpost product, it just doesn't require an account to try. A free account adds your own brand voice, a content calendar, and script generation for Reels, but the caption generator above works without one.
Questions people actually ask
Yes. You get a few free generations a day with no account and no credit card. Sign up for a free Growpost account to keep generating past the daily limit.
No, that's the point. One idea generates an Instagram caption plus matching LinkedIn and X versions at the same time, in your voice, not three separate rewrites.
The free version writes in a general voice. A Growpost account lets you save your own brand voice from a few writing samples, so every caption sounds like you instead of a template.
No. Growpost has no OAuth and doesn't auto-post anywhere. You copy the caption and post it yourself, or save it to a draft if you create an account.