What is this social post preview?
A free, browser-based tool that shows how the same post looks across X, Threads, Facebook, LinkedIn, and as an Instagram caption — side by side. It surfaces each platform's character limit, where the '…see more' fold falls, and the aspect ratio it crops your image to, so you can spot truncation before you post. You compose everything yourself; nothing is fetched and nothing is uploaded.
How to use it
- Type your post on the left.
- Optionally upload an image or fill a link card (title, description, domain, image).
- Compare the live previews and watch each fold and crop.
Common use cases
- Checking where 'see more' cuts your post on LinkedIn vs Instagram.
- Making sure a key line lands above the fold.
- Seeing how an image is cropped per platform before posting.