Multiposter
Submitting the same video to TikTok, Instagram, YouTube, and Facebook shouldn’t mean four separate uploads. With Multiposter you upload the file once, write your caption once, and submit it to every site at the same time.
There’s no file conversion or re-uploading involved — Multiposter delivers your original video to each platform through its official API, with per-platform titles and hashtags if you want them.
The free plan lets you try the whole flow today: connect your accounts, drop in a video, and watch it go live everywhere in under a minute.