Post YouTube Shorts to Instagram in one click.

ShortsSync automatically downloads your Short, converts it to 9:16 Reel format with FFmpeg, extracts the caption, and auto-posts to Instagram & Facebook.

Try Dashboard FreeInstall Chrome Extension

No credit card required. Initial setup takes 2 minutes.

⚡ ShortsSync Automation Dashboard

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The social media pain

Standard schedulers can’t auto-post YouTube Shorts.

❌ Without ShortsSync.

  • 💾 Manually find a site to download your YouTube Short
  • 💻 Convert the format and crop to vertical 9:16 yourself
  • 📱 Move the file to your mobile phone to upload
  • ✍️ Stare at a blank screen and rewrite the caption from scratch
  • 🔄 Open Facebook to repeat the process all over again

✅ With ShortsSync.

  • ⚡ Click "Post to Instagram" directly from the YouTube page
  • 📥 Short downloaded automatically via backend job
  • ✂️ FFmpeg crops landscape clips to vertical 9:16 Reels
  • 📝 Title, description, and hashtags auto-filled for caption
  • 🚀 Uploaded directly to Instagram and Facebook Reels in 1 click
Core features

Automated repurposing pipeline built for creators.

Save hours of manual video downloading, resizing, and caption typing.

📥

Auto-download (yt-dlp).

Extracts Shorts directly from YouTube watch or shorts links. No need to download video files to your device.

🎬

Smart FFmpeg cropping.

Converts landscape videos to 1080x1920 vertical format. Choose between smart center crop or letterbox layout.

✍️

Caption extraction.

YouTube descriptions are parsed, formatted, and converted to Instagram captions with hashtags preserved.

📱

Instagram private API.

Uploads directly as a Reel using secure instagrapi endpoints, bypassing Meta’s strict developer app reviews.

👥

Facebook Reels integration.

Cross-posts automatically to your linked Facebook profile or Page in the same workflow.

🔌

One-click Chrome extension.

Browse YouTube normally. When you view a Short, click the floating button to queue the automation.

Simple workflow

How ShortsSync automates your repurposing.

1

Detect Short URL.

Paste the YouTube Short link in our dashboard, or click the Chrome Extension button while watching a Short on YouTube.

2

Transcoding to Reel spec.

Our server downloads the video, validates that the duration is under 90s, and uses FFmpeg to output a compliant yuv420p H.264 file.

3

Caption & hashtags.

The YouTube title and description are reformatted. Hashtags are extracted from video tags and placed at the end of the Reel caption.

4

Direct API posting.

The video and caption are sent via secure API. The Reel goes live instantly on Instagram and cross-posts to Facebook.

Pricing plans

Pricing built for growing channels.

Free Trial.

$0

Test the automation

  • 3 cross-posts per month
  • yt-dlp auto-download
  • Standard center cropping
  • Chrome Extension support
  • Priority queue processing
  • Batch multi-post mode
Get Started
Most Popular

Creator Pro.

$7.99/mo

Full channel automation

  • Unlimited cross-posts
  • yt-dlp auto-download
  • Smart crop & Letterbox options
  • Chrome Extension support
  • Priority processing queue
  • Batch upload (up to 10 at once)
Go Pro Now
FAQ

Frequently asked questions.

ShortsSync is an automated cross-posting application that extracts video clips directly from YouTube Shorts links, resizes them to Reel specs via FFmpeg, formats the description as a caption, and uploads them to Instagram Reels and Facebook Reels in one step.
The private API (instagrapi) works on personal, creator, and business accounts immediately without needing Facebook links or Meta developer app reviews. The production Graph API path requires a business or creator account connected to a Facebook page.
ShortsSync checks the aspect ratio. If it is already vertical, it re-encodes it. If it is horizontal, it crops it to the center (losing the sides) or pads it with black bars (letterboxing) to ensure it fits the vertical 1080x1920 layout without distortion.
Yes. Instagram’s Reel API rejects any video exceeding 90 seconds. We validate that the duration is under 90s before processing. YouTube Shorts are naturally under 60 seconds, which is perfectly safe.
No. For local development, credentials reside only inside your local environment `.env` file. In production settings, credentials are encrypted at rest and never shared or sold.

Repurpose YouTube Shorts to Instagram Reels automatically.

Building an online audience requires you to publish video content across multiple platforms to maximize visibility. Unfortunately, cross-posting YouTube Shorts to Instagram Reels is highly manual: downloading the MP4 file to your desktop or mobile, formatting it to vertical 9:16 specs, transferring the media, copying and pasting descriptions, and manually re-entering hashtags. ShortsSync automates this exact process.

By leveraging yt-dlp, FFmpeg, and the private Instagram API, ShortsSync provides a seamless pipeline. Paste any YouTube Shorts watch URL into the dashboard or click our Chrome extension button directly on the page. The backend immediately queues a job, pulls the video from YouTube, uses FFmpeg filters to transcode it to yuv420p aspect ratios, extracts your title and description, and publishes it directly as a Reel. Streamline your social media scheduling pipeline and double your reach today.