- What size is a TikTok post?
- TikTok fills the screen at 1080 by 1920 pixels, a 9:16 vertical ratio. Anything squarer gets letterboxed, so it is worth checking the crop before you publish.
- How long can a TikTok caption be?
- TikTok allows up to 4,000 characters, raised from the old 2,200 limit that many guides still quote. Only around the first 100 characters are visible in the feed, so put what matters first.
- Where does TikTok cut the caption off?
- At roughly 100 characters, after which the rest hides behind a more link. PostDecks draws that cut-off on the preview so you can see exactly what a viewer reads without tapping.
- Is it free?
- Yes, the preview and the PDF and PNG exports are free with no account, and your images stay in your browser.