YouTube
Schedule YouTube uploads. With the title counted against the limit that actually applies.
YouTube is the one platform where the obvious character count is the wrong one. The description gets thousands of characters; the title caps at 100 and gets cut much earlier than that in search, the sidebar, and on mobile. Postonus counts them separately.
Title and description counted separately.
Two fields, two limits
The table above shows both, and the gap between them is the entire point. The description has thousands of characters. The title has 100.
A counter that only knows about one limit is actively misleading here: it tells you a 140-character title is fine because it is well under the description budget, and then YouTube refuses it. Postonus counts each field against its own limit.
100 is not the real title limit
100 is what YouTube accepts. It is not what YouTube shows.
Every placement truncates at a different width — search results, the sidebar suggestion list, the home feed, mobile, Shorts. A title that reads well at full length can lose its most important word in the placement that actually drives your views.
The free YouTube title checker renders your title in each placement so you can see where the cut lands. Front-load the words that matter and it stops being a gamble.
One video per post
A YouTube post is an upload. That is the shape of the platform, and it is why YouTube is usually the odd one out in a multi-platform post — the same content going to Instagram, TikTok, and YouTube needs a video, and the text around it does different work in each place.
If you are publishing the same video across several short-form platforms, write the copy per platform rather than sharing one body. The description is doing SEO work on YouTube and almost none on TikTok.
Found this useful? Pass it on.
Limits
What YouTube allows in one post. The composer enforces these while you type.
- Characters per post
- 5,000
- Title characters
- 100
- Media per post
- 1
- Media types
- video
- First comment
- Not supported by the platform
Read from the same rules the composer and the publish workers use, so this table cannot drift from what actually publishes.
Questions
Frequently asked questions Everything the first evaluation usually needs.
- Why is the title counted separately from the description?
Because they are different fields with very different limits. Counting a title against the description’s allowance would tell you there are thousands of characters of room that YouTube will not accept.
- Where does my title get cut off?
It depends on the placement — search results, the sidebar, the home feed, and Shorts all truncate at different points, and none of them at 100 characters. The free YouTube title checker previews each placement.
- Can I schedule Shorts?
Shorts are vertical videos, uploaded the same way. The format is determined by the video itself rather than by a separate publishing flow.
- How many videos can one post carry?
One. A YouTube post is a video upload — see the table above, which reflects what the publisher enforces.
- Can I set a custom thumbnail?
Thumbnail handling depends on the permissions granted on your channel. The composer will show you what is available for your connection rather than failing at publish time.
Keep reading
- TikTok schedulerSchedule TikTok videos and photo-mode posts from the same calendar as everything else, with limits checked against what TikTok actually accepts.Read
- Multi-platform publishingWrite once and publish to 16 platforms, with per-channel overrides where the platforms differ. Limits are enforced as you type, from the rules workers use.Read
- Queue & reliabilityA queue that flags a post at risk before its publish time, refuses to send something an hour late, and turns a crashed worker into a retryable failure.Read