Compose & publish
Write a post once, pick where it goes, fine-tune it for each platform, preview it exactly as it'll appear, and publish now or schedule it for later.
The composer, step by step
Choose your channels
In Post, select the connected accounts this post should go to. You can post to several at once.Add your media
Upload photos or video, pick from your Media Library, or create something with AI.Write your caption
Start with one caption for everyone, then tailor it per platform if you like.Set per-platform options
Some platforms have their own fields: a YouTube title and privacy, alt text per image, and so on.Preview
See a true-to-platform preview, including any cropping, before you publish.Publish or schedule
Post now, save a draft, or schedule it for later.
Per-platform captions
Write one base caption and postme.live uses it everywhere, or adjust it per platform when a channel calls for a different tone or length. postme.live can also draft and tailor captions for you in your brand voice, tuned to each platform's style.
Caption lengths differ by platform; the composer shows a live character counter, and the full list is on Platform limitations.
Platform-specific options
| Platform | Options you can set |
|---|---|
| YouTube | Title, description, visibility (public / unlisted / private), category, "made for kids", AI-content disclosure |
| Facebook / Instagram | Caption, plus each platform's media rules |
Previews & cropping
The preview mirrors each platform (feed posts, Reels, carousels, Facebook mosaics) so you see your post the way your audience will. When an image would be cropped or letterboxed to fit a platform's shape, the preview flags it.
Tips for each platform
Under the preview, the composer adds short tips when a post may not land well on a platform you've picked. They're advice only and never stop you publishing:
- A link in the caption: Facebook and LinkedIn show link posts to fewer people, and links in Instagram captions can't be tapped. Put the link in a comment after posting, or on your Bio page.
- One photo on Instagram: a few photos as a carousel usually get more engagement.
- A Reel over a minute: Reels of 30 to 60 seconds tend to reach the most people for smaller accounts.
- Video over three minutes on YouTube: it posts as a regular video rather than a Short.
Drafts
Not ready yet? Save as draft keeps your caption, media, channels, and options so you can pick it up later. You can write and save drafts before you've connected any channel; connect one when you're ready to publish.