> ## Documentation Index > Fetch the complete documentation index at: https://captions.ai/llms.txt > Use this file to discover all available pages before exploring further. # Format Clips for TikTok, Reels & YouTube Shorts > One recording, three platforms. Here's how to optimize the same clip for TikTok, Instagram Reels, and YouTube Shorts. TikTok, Instagram Reels, and YouTube Shorts have different audiences, different algorithms, and different expectations but they all reward the same fundamentals: a strong hook, clean captions, and the right length. This guide covers how to adapt the same source clip for all three without re-editing everything from scratch. ## The universal requirements Before you think about platform differences, every clip needs these regardless of where it's going: * **Vertical format (9:16)** all three platforms are mobile-first * **Captions** the majority of viewers watch without sound on every platform * **A hook in the first 3 seconds** the algorithm measures early drop-off on all three * **Clean audio** use [Denoise](/help/docs/audio/denoise) if your source recording has background noise ## Platform-by-platform guide ### TikTok **Optimal length:** 15–60 seconds for new audience reach. Up to 3 minutes for established audiences. **What performs:** * Fast-paced cuts and high energy * Bold, animated caption styles the caption is part of the visual * Trending audio layered under your clip can significantly boost reach * Raw, authentic content outperforms polished production **Caption style:** Go bold. TikTok audiences expect high-contrast, animated captions. Use the most expressive styles in Captions this is not a platform where minimal captions work well. **One thing to know:** TikTok's algorithm is the most discovery-friendly of the three. A clip from a new account can reach millions. This makes it the best platform for testing which clips actually resonate before investing in the others. *** ### Instagram Reels **Optimal length:** 15–30 seconds for maximum reach. Up to 90 seconds for value-dense content. **What performs:** * Slightly more polished than TikTok aesthetic matters more * Strong hook in the first frame, including the visual * Saves and shares matter more than likes for the algorithm * Content that's useful, bookmarkable, or re-watchable performs best **Caption style:** Clean and readable. Instagram audiences skew toward polished content, so minimal or medium-weight caption styles often perform better than heavy animated ones. Consistency with your overall aesthetic matters here. **One thing to know:** Reels are heavily surfaced in the Explore tab, making them excellent for reaching people who don't follow you yet. Clips that prompt saves tips, how-tos, frameworks tend to have the longest shelf life on Reels. *** ### YouTube Shorts **Optimal length:** 30–60 seconds. YouTube's algorithm is more forgiving of longer clips than TikTok or Reels. **What performs:** * Educational and how-to content does especially well * Clips that relate to a longer YouTube video drive channel subscribers * High retention (watching to the end) is the key metric * The algorithm favors clips that drive viewers to your long-form content **Caption style:** Clear and legible. YouTube Shorts audiences are slightly older and more content-focused than TikTok. Medium-weight, readable captions tend to outperform flashy styles. **One thing to know:** YouTube Shorts is the best platform for driving subscribers to your main channel. If you have long-form YouTube content, use Shorts as a preview and funnel end your clip with a clear reason to follow for the full video. ## Exporting the same clip for multiple platforms You don't need to re-edit for each platform. The core clip is the same what changes is: 1. **Length** trim to the appropriate length for each platform if needed 2. **Caption style** adjust the [style](/help/docs/captions/styles) to match each platform's aesthetic 3. **Any platform-specific text overlays** a "Follow for more" CTA works on YouTube Shorts; it feels out of place on TikTok [Export](/help/docs/settings/export) once, adjust the caption style, export again. The whole process takes minutes. ## Quick reference | | TikTok | Instagram Reels | YouTube Shorts | | --------------------- | ----------------- | ---------------- | --------------- | | **Best length** | 15–60s | 15–30s | 30–60s | | **Caption style** | Bold, animated | Clean, aesthetic | Clear, readable | | **Key metric** | Watch time | Saves & shares | Retention | | **Best content type** | Raw, entertaining | Polished, useful | Educational | | **Discovery** | Excellent | Very good | Good | ## Tips * **Post the same clip on all three** there's no penalty for cross-posting. Your audiences on each platform are almost entirely different people. * **Test on TikTok first** TikTok's algorithm gives you faster feedback on what works. Find your winner there, then post it everywhere. * **Don't change the content for each platform** change the presentation (captions, length), not the idea. If the core clip is strong, it works on all three. * **Captions matter more than anything else** every platform rewards captioned content because it drives watch time from silent viewers. ## What's next Extract clips from any long-form recording with Long to Short. Make the opening of every clip impossible to scroll past. Turn one recording into a full week of scheduled posts. Style captions for maximum watch time on every platform.