How to Auto-Post and Schedule Short Videos to YouTube, TikTok and Instagram
Connect your channels once, then publish a finished short or queue it for later across all three platforms from inside Scenelit.
Last updated June 25, 2026
In Scenelit, connect your YouTube, TikTok and Instagram accounts under Connections, then open any finished video and choose Publish now or schedule a date and time per platform. Auto-mode goes further: it generates videos on a topic and posts them on a recurring schedule without you opening each one.
How do I connect my YouTube, TikTok and Instagram accounts to Scenelit?
Before you can publish anywhere, Scenelit needs permission to post on your behalf. Open the Connections page and you'll see a card for each platform: YouTube, TikTok and Instagram. Connecting is a one-time step per account.
Each connection runs through the platform's own login and consent screen, so you authorize Scenelit directly with YouTube, TikTok or Instagram. Once a channel shows as connected, it stays linked and is ready for every future video. You can connect one, two, or all three depending on where you publish.
- •Go to Connections in the sidebar
- •Click connect on the YouTube, TikTok or Instagram card
- •Sign in and approve the access prompt on the platform's own screen
- •Confirm the account shows as connected, then repeat for any other platform
How do I publish a finished short to all three platforms at once?
After Scenelit renders your captioned MP4, open the video and choose where it goes. You can target YouTube, TikTok and Instagram together or pick a subset for that specific video.
This is where the auto-generated content package helps. Scenelit produces three title options, a hook, per-platform descriptions with hashtags, and a posting caption, so each platform gets text shaped for it instead of one caption copied everywhere. Review the title and description, pick the platforms, and publish.
- •Open the finished video from My Videos
- •Select the platforms you want to post to
- •Use the generated title, description and hashtags, or edit them
- •Choose Publish now to push it out immediately
How do I schedule a short for a specific date and time?
If you'd rather post later, schedule instead of publishing now. Set the date and time you want the video to go live, and Scenelit's scheduler holds it in the queue and posts it automatically when that moment arrives. You don't need to keep the app open or be at your computer.
Scheduling lets you batch your work. Make several videos in one sitting, give each one a future slot, and spread them across the week so your channels stay active without daily effort. Each platform can carry its own description and hashtags for the same scheduled video.
What is auto-mode and how does it post on its own?
Publishing and scheduling still start from a video you made. Auto-mode is the hands-off layer on top: you set it up around a topic, and Scenelit generates new short-form videos and posts them to your connected accounts on a recurring schedule.
Each auto-mode video runs the full pipeline: a hook-first script, an AI voiceover, visuals sourced or generated per scene, captions, and the content package for titles and descriptions. The result is a steady stream of posts to YouTube, TikTok and Instagram without you opening each video by hand. Because every render uses credits, auto-mode draws from your monthly balance, so match its pace to your plan.
What do I need before auto-posting works?
Two things make auto-posting reliable: connected accounts and available credits. If a platform isn't connected, Scenelit can't post there, so confirm each channel shows as linked on the Connections page first.
Every account starts with 15 free credits and no card required, which is enough to test the full publish flow end to end. For ongoing scheduling and auto-mode you'll want a steady credit balance, since each generated and rendered video spends from it. The Starter, Creator and Studio plans add 60, 175 or 400 monthly credits at $19, $49 and $99.
- •Connected YouTube, TikTok and/or Instagram accounts
- •Enough credits for the videos you plan to generate and render
- •A finished video to publish, or a topic configured for auto-mode
- •A schedule or post time set if you're not publishing immediately
Frequently asked questions
Yes. Open a finished video, select all three platforms, and choose Publish now. Scenelit posts to each connected account and gives every platform its own description and hashtags from the content package.
No. Once you set a date and time, Scenelit's scheduler handles posting automatically when the slot arrives. You can close the app and the video still goes live as scheduled.
Scheduling posts a video you already made at a future time. Auto-mode generates brand-new videos on a topic and posts them on a recurring schedule, so the whole pipeline runs without you building each video by hand.
No. Every account starts with 15 free credits and no card, so you can connect accounts and test publishing for free. Paid Starter, Creator and Studio plans add 60, 175 or 400 monthly credits for heavier scheduling and auto-mode.
That platform likely isn't connected yet, or its connection needs to be re-authorized. Open the Connections page and confirm the YouTube, TikTok or Instagram account shows as connected before publishing or scheduling.
Start with your 15 free credits, connect your accounts, and schedule your first short across all three platforms in Scenelit.