YouTube to Reels,
clean and Reels-ready.
Cross-posting from YouTube to Instagram Reels usually means a manual crop in CapCut and a Submagic pass for captions. AutoAIClips does both — and picks the 10 best moments before you start.
From YouTube URL to Reels in 5 steps
- 1
Paste a YouTube URL
Any public YouTube long-form, podcast episode, or interview. AutoAIClips downloads, transcribes, and ranks in one pass.
- 2
AI picks 10 Reels-ready moments
Instagram Reels rewards hook strength in the first 3 seconds. Our clip scorer specifically weighs hook quality alongside retention — the clips you'd actually want to drop on Reels.
- 3
Speaker-tracked 9:16 reframe
Auto-reframe keeps faces centered. For 16:9 source videos, the crop follows the active speaker rather than dumb-cropping the middle.
- 4
Captions in your brand style
AssemblyAI word-level transcription, burned-in captions with stylable templates. Reels viewers watch with sound off — captions are not optional.
- 5
Export and upload to Reels
Download the 9:16 MP4. Upload via the Instagram app or your scheduling tool (Later, Buffer, Metricool). No Reels watermark, no platform crossover signal.
Why Reels-specific instead of generic shorts?
The output MP4 is identical across TikTok, Reels, and Shorts — but Reels is uniquely unforgiving about hook quality and cross-platform watermarks. AutoAIClips’ clip scorer specifically weighs the first 3 seconds (where Reels viewers swipe away) and outputs watermark-free 9:16 video that doesn’t trigger Instagram’s third-party-platform demotion.
Common questions
Will Instagram demote Reels cut from YouTube?+
Only if they have visible watermarks or platform UI (TikTok logo, YouTube progress bar) in the frame. AutoAIClips outputs clean 9:16 MP4s with no source markers, which is what Instagram's algorithm wants for a Reel.
What length is best for Reels?+
Reels supports up to 90 seconds, but the algorithm tends to favor 15–30 second clips for For You page distribution. AutoAIClips typically returns candidates in the 25–55 second range — long enough for storytelling, short enough to perform.
Can I post the same clip to TikTok and Reels?+
Yes, and you should. The clean 9:16 MP4 works on TikTok, Reels, and YouTube Shorts identically. Just don't post the Reel back to TikTok with the Reels watermark on it — that's the cross-platform penalty.
Does AutoAIClips add the Instagram-style caption animation?+
Yes. The caption template library includes pop-on, karaoke-highlight, and line-by-line styles in the aesthetic Reels viewers expect. You can also create custom templates if you have a specific brand style.
From long-form to Reels-ready.
$9.99/week. Cancel anytime. No watermark.
Try AutoAIClips