How this free YouTube video scheduler works
Upload a long-form video, set the title (100-char hard cap), description, tags, category, kids audience, visibility, and publish time. Postmixr uploads via the YouTube Data API v3 with resumable upload and publishAt scheduling.
Sign up free to connect your channel. Scheduled videos upload as private and flip public at the time you choose.
YouTube title character limit (100)
YouTube Studio enforces a 100-character maximum on titles. Search results often truncate after 50–60 characters on mobile and 70 on desktop, so put the keyword and hook early.
Visibility and made-for-kids settings
Use "Scheduled" visibility to set a publishAt timestamp. Mark "made for kids" when content targets children — YouTube disables comments and personalized ads as required.
- Add a custom 1280×720 thumbnail after signing in (verified channels only).
- Scheduling Shorts? Switch the video type dropdown to Short for vertical-first guidance.