Schedule X posts from one calendar
Write once, check it against X's limit as you type, and queue it for the time your audience is on.
No card needed · moves to Free after 14 days
Publishes to all 11 platforms: LinkedIn, Instagram, Facebook, X, YouTube, TikTok, Pinterest, Threads, Google Business, Bluesky and Mastodon.
Why X posting slips
Posting when you remember
X rewards a steady rhythm, and posting in bursts then stopping resets it.
Finding out at the last minute
A caption over X's limit, or the wrong kind of media, is only refused when you press Post.
One app per platform
Opening X, then every other app, to post the same news is slow and easy to forget.
How Optimate schedules X
Write it once, check it against X's own rules, and pick a time. It publishes while you get on with your day.
One calendar for every platform
X sits on the same planner as LinkedIn, Instagram, Facebook, YouTube, TikTok, Pinterest, Threads, Google Business, Bluesky and Mastodon.
Checked against X's rules
The caption is counted as you type and the media checked before it is queued, so a post X would refuse is caught before it is scheduled.
Tailored per platform
Post the same news everywhere, with the wording adjusted for X, and preview it the way X will show it.
Post now or later
Pick a time, or publish straight away when something can't wait.
X's limits
- Caption length
- 280 characters (links count as 23)
- Photos and video
- Text, with up to 4 images or one video. X videos up to 2 minutes 20 seconds.
- Image size (post image)
- 1,600 × 900 px, 16:9
- Good to know
- X counts every link as 23 characters; the counter does the same. X posting is on paid plans.
How it works
- 1
Connect X
Sign in to X from Connections. It takes a minute.
- 2
Write the post
Write it yourself, or start from a caption written in your brand's voice.
- 3
Pick a time
Schedule it, and it goes out on X at that time.
Scheduling somewhere else too?
Common questions
Can I schedule X posts for free?
Yes. Every new account starts with a 14-day free trial, no card needed, and the Free plan afterwards keeps a small queue of scheduled posts. X posting needs a paid plan.
What is X's character limit?
280 characters for a post or caption. Optimate counts as you type and warns before you schedule anything X would refuse.
What can I attach to a X post?
Text, with up to 4 images or one video. X videos up to 2 minutes 20 seconds.
Can I post the same thing to X and other platforms?
Yes. Write one post, tick every platform it should go to, and adjust the wording for each one before it is scheduled.
X image sizes
Every size X asks for, from posts to profile pictures, on one page with every other platform's.
See the image sizesQueue a week of X posts in one sitting
14-day free trial, no card needed.