Export 9:16 1080×1920 MP4 First: Master Vertical Video Spec for Creators
- Charlie Puritano
- 3 hours ago
- 6 min read
Export a 9:16, 1080×1920 MP4 file using the H264 codec at 30 fps (bump to 60 fps for fast motion), with a bitrate of 8 to 15 Mbps and AAC audio at 128 to 192 kbps. That single combination, built on standards Puritano relies on for client delivery, plays cleanly across every major platform without re-encoding surprises. Platform-specific limits on length and file size still apply, and we break those down next.
TL;DR:
Export vertical videos at 1080×1920 with an 8 to 15 Mbps bitrate for optimal quality and compatibility across most social platforms.
Different platforms impose specific length limits, such as 60 seconds for YouTube Shorts and 90 seconds for Instagram Reels, requiring tailored edits for each use.
Always test video playback on actual phones before publishing to catch issues like UI overlap, pixelation, or audio artifacts, especially when repurposing content.
Use the middle third of the frame for key content and avoid critical elements near top or bottom UI zones to prevent cropping or overlay clipping.
Stick with MP4 and H264 for broad compatibility, and consider higher bitrates or native vertical shooting for high-budget campaigns or hero content.
Vertical Video Specs at a Glance: The Canonical Numbers
Before touching platform quirks, lock in the master spec that every export should start from. This is the file you build once, then adapt.
Setting | Recommended value | Why it matters |
Aspect ratio | 9:16 | The universal vertical standard across social apps |
Resolution | 1080×1920 | Sharp on modern phones without bloating file size |
Fallback resolution | 720×1280 or 360×640 | Acceptable minimums when bandwidth or storage is tight |
Container | MP4 | Broadest platform and device compatibility |
Codec | H264 | Universally decodable, minimal playback errors |
Frame rate | 30 fps (60 fps for motion) | Matches native capture and playback expectations |
Bitrate | 8 to 15 Mbps | Balances clarity against upload and recompression limits |
Audio | AAC, 128 to 192 kbps | Clean dialogue and music without oversized files |
The 1080×1920 resolution sits in a sweet spot: high enough to survive a phone screen held six inches from someone’s face, but not so large that upload times or storage balloon for no visible gain. You can technically drop to 360×640 and most platforms will still accept the file. We would not recommend it for anything beyond throwaway content, since pixelation shows up fast on modern displays.
Should you ever shoot in QHD or 4K vertical? Only if you know the footage will get punched in during editing, like isolating a subject from a wider frame, or if the client wants a future-proofed master for a screen you haven’t specified yet. For 95% of social content, 1080×1920 is the finish line, not a compromise.
What Are the Vertical Video Specs for Each Major Platform?
Every platform claims to support 9:16, but the fine print varies enough to trip up an otherwise solid export. Here’s what actually matters per app:
TikTok: 9:16, 1080×1920 recommended, up to 10 minutes for most accounts. iOS and Android sometimes enforce different file-size ceilings, so test uploads from both device types before assuming parity.
Instagram Reels: 9:16, 1080×1920, up to 90 seconds for most placements. Reels get cropped to 4:5 in the main feed grid, so if a video needs to work as both a Reel and a static feed post, plan a 4:5 crop separately rather than hoping the auto-crop lands well.
Instagram Stories: 9:16, 1080×1920, 15-second segments (longer videos auto-split). Text near the top gets covered by the profile bar almost every time.
YouTube Shorts: 9:16, 1080×1920, capped at 60 seconds. Go one second over and YouTube treats it as a regular long-form upload, which tanks discovery in the Shorts feed.
Facebook Reels: 9:16, 1080×1920, similar duration rules to Instagram since Meta shares infrastructure between the two.
Snapchat: 9:16, 1080×1920, optimized for full-screen playback with minimal UI, which makes it more forgiving on safe-zone placement than Instagram or TikTok.
LinkedIn: 9:16 supported but less universally used. Many B2B viewers still scroll a square or landscape feed, so test both orientations if the audience skews desktop.
Pinterest: 9:16 for Idea Pins, 1080×1920, with a strong preference for text overlays that survive thumbnail cropping.
The recurring failure point isn’t the aspect ratio. It’s assuming one export satisfies every placement a platform offers. YouTube’s own guidance confirms 1080×1920 as the target resolution while accepting 720×1280 as a workable minimum, and Twitch’s vertical ad specs list the same 1080×1920 resolution with an 8 Mbps recommended bitrate, which lines up almost exactly with the cross-platform master above.
Export and File-Format Best Practices That Prevent Quality Loss
Every platform recompresses your upload the moment it lands on their servers. The goal isn’t to avoid recompression entirely. It’s to hand the platform a file clean enough that recompression doesn’t introduce visible damage.
Default to MP4 with H264 for anything going to more than one platform; it remains the most broadly compatible pairing across social apps and devices in 2026.
Consider HEVC (H.265) only when file size is the bottleneck and you control the full delivery chain, since playback support is still uneven on older Android devices.
Set bitrate to 8 to 15 Mbps for 1080×1920 footage; push toward 12 to 20 Mbps for high-motion content like sports or dance, where compression artifacts show up fastest.
Use a constant frame rate, not variable, since platforms handle CFR far more predictably during their own re-encoding pass.
Pro Tip: Export in the Rec.709 color profile with an H264 baseline or main profile. It’s the least glamorous setting in your export panel and the one most likely to break playback on an older device if you skip it.
How Do You Keep Vertical Video Content Inside the Safe Zone?
Treat the middle third of the frame as sacred ground. Faces, product shots, and text belong there, since production best practice confirms UI overlays almost always eat the outer edges first.
Keep critical content clear of the top 14% and bottom 20% of the frame. That’s where Instagram’s own UI elements (profile bars, captions, share buttons) tend to sit.
When reframing horizontal footage, avoid a static pillarbox. Animated pans, foreground-aware crops, and rebuilt graphics designed for portrait all outperform a simple center-crop.
Decide early whether you need one master export or several. A single 9:16 master works for quick organic posts, but a separate 4:5 version prevents captions and CTAs from getting clipped in feed placements.
Pro Tip: Always test on an actual phone, not a desktop preview. Notches, dynamic islands, and rounded corners eat more frame than any style guide accounts for.
Before You Hit Publish: A Quick QA Checklist
Confirm export settings against the master table: resolution, codec, frame rate, bitrate.
Upload to a private test account and watch playback on an actual phone, not a monitor.
Spot-check captions and CTAs against where UI overlays typically sit.
Listen for audio artifacts and check the file didn’t drop bitrate during export.
Re-export if anything clips. Don’t publish and hope viewers won’t notice.
Three signs you need to re-export before this goes live: visible pixelation on a phone screen, text or logos cut off at the edges, and stuttering playback after upload that wasn’t there in your original file. Testing on-device before publishing catches most of these before they become a public embarrassment.
When Native Vertical Production Beats Repurposing
Repurposing horizontal footage works fine for daily organic posts. It stops working the moment you’re launching a brand campaign, running paid social ads, or producing hero content where every frame needs to earn its place. That’s when shooting native vertical, planned around the middle third from the first setup, pays for itself. Puritano’s music video work shows what native vertical composition looks like when it’s built right from the start rather than cropped after the fact. Run your export through the checklist above regardless. For anything with real budget behind it, that’s where a production partner earns its fee.
— Charlie
Where to Verify Current Vertical Video Specs
For rules that shift without warning, check platform documentation directly: Google’s video specs for YouTube Shorts, Meta’s safe-zone guidance for Reels and Stories, and Puritano’s own platform spec guide for a consolidated reference.
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