# How to optimize video for social media: a platform guide
Posting the same video file across every social channel and hoping for the best is one of the most common (and costly) mistakes brands make with their video budgets. A beautifully graded brand film exported at broadcast specs will still underperform if it lands on the wrong canvas, at the wrong ratio, with the wrong first frame. Algorithms penalize poor-fit content. Viewers scroll past it in under a second.
The good news: getting it right is largely a technical checklist, not a creative overhaul. Once you understand what each platform actually wants, you can plan those requirements into production rather than scrambling in post. This guide breaks down the key specifications, strategic considerations, and practical tips for every major platform where video content lives today.
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Why specs matter more than you think
Social platforms compress video on upload. Every major network re-encodes your file after you submit it, which means the quality your audience sees depends on how well your export settings match the platform's preferred ingest parameters. Upload a low-bitrate file and the second compression pass turns it muddy. Upload an oversized file with the wrong codec and the platform's encoder struggles, introducing artefacts and frame drops.
Beyond technical quality, each platform's algorithm rewards native behaviour. A video that uses the correct aspect ratio, loads quickly, and keeps viewers watching past the first three seconds is surfaced more aggressively than one that doesn't. Format compliance is, in effect, part of your organic reach strategy.
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Instagram: vertical first, square as backup
Instagram is a mobile-first environment, and its video surfaces each have their own logic.
Reels are the platform's primary growth driver right now. Optimal specs:
- Aspect ratio: 9:16 (full vertical)
- Resolution: 1080 × 1920 px
- Frame rate: 24–30 fps
- Max length: 90 seconds (shorter, 15–30 s, performs better for reach)
- File format: MP4, H.264 codec
- Audio: AAC, stereo, 44.1 kHz
Feed posts accept up to 60 seconds at a 4:5 ratio (1080 × 1350 px), which fills more screen space than a 1:1 square and tends to outperform it. Stories mirror Reels at 9:16. Leave roughly 250 px of safe space at the top and bottom for UI overlays.
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LinkedIn: credibility over virality
LinkedIn audiences are professional, often desktop-based, and watching with intent rather than impulse. Video here is less about entertainment and more about demonstrating expertise or company culture.
Key specs:
- Aspect ratio: 1:1 (square) or 16:9 (landscape); 4:5 vertical performs increasingly well in-feed
- Resolution: 1080 × 1080 px (square) or 1920 × 1080 px (landscape)
- Frame rate: 24–30 fps
- Max length: 10 minutes (native); 3 minutes is the practical ceiling for retention
- Max file size: 5 GB
- File format: MP4
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YouTube: the long game
YouTube is a search engine as much as it is a social platform, which changes the optimization calculus entirely. Content here needs to satisfy both the viewer and the algorithm's ranking signals — watch time, click-through rate, session initiation.
Key specs:
- Aspect ratio: 16:9 (primary); Shorts use 9:16
- Resolution: Upload at the highest quality you have. 4K (3840 × 2160) is ideal; 1080p is the practical minimum for professional content
- Frame rate: 24, 25, 30, 48, or 60 fps — match your production frame rate
- File format: MP4 (H.264 or H.265), MOV
- Bitrate: 8 Mbps for 1080p30; 40 Mbps for 4K30
Thumbnails are arguably more important than the video itself for click-through rate. Custom thumbnails with a clear subject, readable text, and strong contrast consistently outperform auto-generated stills. Chapter markers and a well-structured description with timestamps improve session depth.
YouTube Shorts (under 60 seconds, 9:16) are indexed separately and benefit from their own optimization: hook in the first two seconds, no dead air, loopable structure where possible.
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TikTok: native or nothing
TikTok punishes content that feels imported from elsewhere. Low-resolution reposts, watermarks from other platforms, and overly polished corporate aesthetics all trigger lower distribution. The platform rewards content that looks and feels like it belongs there.
Key specs:
- Aspect ratio: 9:16 (non-negotiable for feed)
- Resolution: 1080 × 1920 px minimum; 1080 × 2340 px for newer devices
- Frame rate: 24–30 fps
- Max length: 10 minutes (native upload); 60 seconds performs best
- File format: MP4 or MOV
- Bitrate: 516 kbps minimum; 2 Mbps+ recommended
Avoid exporting with a letterbox or pillarbox. Content should fill the frame. Remove any watermarks from other apps before uploading — TikTok's algorithm actively deprioritizes content bearing competitor branding.
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Facebook: a mixed-device audience
Facebook's video audience skews older than TikTok or Instagram, and the platform serves content across a wide mix of devices, from phones to desktop computers. This demands more versatile formatting choices.
Key specs:
- Aspect ratio: 1:1 or 4:5 in-feed; 16:9 for Facebook Watch; 9:16 for Stories and Reels
- Resolution: 1080 × 1080 px (square) or 1920 × 1080 px (landscape)
- Frame rate: 24–30 fps
- Max length: 240 minutes (native upload)
- File format: MP4 or MOV
- Max file size: 10 GB
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Exporting smart: a universal checklist
Regardless of platform, a few export principles hold everywhere:
- Codec: H.264 is the universal safe choice. H.265/HEVC offers better quality at smaller file sizes but not every platform processes it optimally yet.
- Color space: sRGB for web delivery. If you're grading in a wide gamut (Rec. 2020 or P3), convert down before export or highlights will clip.
- Audio normalization: Target –14 LUFS for social platforms. Too loud causes distortion; too quiet and viewers abandon the clip before the message lands.
- Keyframe interval: Set to 2 seconds (or equal to frame rate × 2). This helps platform encoders compress more efficiently.
- Safe zones: Always leave at least 10% margin on all edges for UI elements, especially on mobile.
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Planning for multi-platform delivery from day one
The most efficient way to handle social optimization is to factor it into pre-production, not afterthought. That means:
1. Shoot vertically as much as horizontally. A dual-orientation shoot adds minimal time on set and eliminates the painful cropping gymnastics later. 2. Keep the key action centre-frame. When a 16:9 frame gets cropped to 9:16, anything near the edges disappears. Compose with the tightest crop in mind. 3. Plan for silence. Write any key messaging so it works visually, without sound. Captions and on-screen text should be drafted at script stage. 4. Log your raw specs. Note your camera's native frame rate and codec on the shoot day. It prevents codec mismatch headaches in the edit.
We apply this multi-platform thinking across every production we run from our Porto studio, where the combination of available light, adaptable locations, and a fully integrated post-production pipeline means we can deliver platform-ready assets without the usual round-trip delays between departments.
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Keeping up as specs evolve
Platforms update their video requirements regularly, and what was optimal last year may already be superseded. The best practice is to verify specs directly on each platform's official help centre before a major campaign launch. Build a quarterly review into your content workflow to catch changes before they cost you reach.
Algorithm preferences also shift. Short-form vertical video has dominated for the past few years, but watch time and depth of engagement are increasingly being rewarded over pure volume of short clips. The brands that will win the next cycle are those building a library of well-produced, properly optimized content across multiple lengths and formats — not just chasing whatever format the algorithm currently favors.
Producing once and distributing smart, with the right specs and the right frame for each channel, is the creative and commercial standard worth reaching for.