Social Media

Best Video Format for Social Media: Instagram, YouTube, TikTok & LinkedIn (2026)

Q: What is the best video format for social media?

MP4 with H.264 video codec and AAC audio is the universal format that works on every social media platform — Instagram, YouTube, TikTok, LinkedIn, Facebook, Twitter/X. It's the safe default. For YouTube, H.265 (HEVC) is supported and produces smaller files at equivalent quality. TikTok and Instagram Reels prefer 9:16 vertical aspect ratio at 1080×1920 resolution.

Q: What video format does Instagram accept?

Instagram accepts MP4 and MOV. Recommended: MP4 H.264, AAC audio, 30fps or 60fps, maximum file size 4GB for Reels (up to 90 seconds). For feed videos: up to 60 seconds. Aspect ratios: 1:1 square (1080×1080), 4:5 portrait (1080×1350), 9:16 vertical (1080×1920) for Reels. Instagram re-encodes all uploaded videos.

Q: What aspect ratio does TikTok use?

TikTok uses 9:16 vertical video (1080×1920 pixels) as the primary format. It also supports 1:1 square videos. Horizontal (16:9) video is accepted but displays with black bars. For best performance, shoot and export in 9:16. TikTok supports up to 60fps and accepts MP4 and MOV format up to 287.6 MB for standard accounts.

Q: Does Twitter/X support MP4 video?

Yes. Twitter/X supports MP4 (H.264, AAC) and MOV. Maximum file size: 512 MB. Maximum length: 140 seconds for standard accounts (longer for X Premium). Supported resolutions up to 1920×1200 or 1200×1900. Aspect ratios from 1:2.39 to 2.39:1. Twitter re-encodes videos, so upload at the highest quality your file size allows.

May 18, 2026 · 10 min read · Convertlo Team

Every social media platform re-encodes your video after upload — so your source format matters less than most guides suggest. What does matter: aspect ratio, resolution, frame rate, and file size limits. Upload in the wrong aspect ratio and the platform crops your video in unexpected ways. Exceed the file size limit and upload fails silently. This guide gives you the exact specs for every platform, plus the universal format that works everywhere.

The Universal Safe Format

If you need one format that works on every platform without issues:

Container: MP4
Video codec: H.264 (AVC), Main or High Profile
Audio codec: AAC, stereo, 44.1kHz or 48kHz, 128–320 kbps
Frame rate: 30fps (or 60fps for sports/gaming)
Color space: YUV 4:2:0, sRGB

This combination is accepted by Instagram, YouTube, TikTok, LinkedIn, Facebook, and Twitter/X. Every platform will re-encode it further, but the quality loss from one encode cycle is minimal.

Platform-by-Platform Video Specs (2026)

Platform	Format	Aspect Ratio	Max Resolution	Max File Size	Max Length
Instagram Reels	MP4, MOV (H.264)	9:16 vertical	1080×1920	4 GB	90 seconds
Instagram Feed	MP4, MOV	1:1, 4:5, 16:9	1080×1080	4 GB	60 seconds
Instagram Stories	MP4, MOV	9:16 vertical	1080×1920	4 GB	60 seconds
YouTube (standard)	MP4, MOV, AVI, MKV	16:9 landscape	3840×2160 (4K)	256 GB	12 hours
YouTube Shorts	MP4, MOV	9:16 vertical	1080×1920	256 GB	60 seconds
TikTok	MP4, MOV	9:16 vertical	1080×1920	287.6 MB	10 minutes
LinkedIn	MP4 (ASF, AVI, MOV also)	16:9, 1:1, 9:16	1920×1080	5 GB	10 minutes
Facebook Feed	MP4, MOV	16:9, 1:1, 9:16	1920×1080	10 GB	240 minutes
Facebook Reels	MP4	9:16 vertical	1080×1920	4 GB	90 seconds
Twitter/X	MP4, MOV	1:2.39 to 2.39:1	1920×1200	512 MB	140 seconds
Pinterest	MP4, MOV	2:3, 1:1, 9:16	1080×1920	2 GB	15 minutes

Instagram: Vertical First

Instagram's algorithm prioritizes Reels over Feed videos. For maximum reach, create content natively in 9:16 (1080×1920). Key Instagram-specific rules:

Safe zone for UI elements: keep text and important visuals in the center 1080×1420px (leaving ~250px top and bottom for Instagram's UI overlay)
Frame rate: 30fps recommended (60fps supported for Reels)
Maximum bitrate: no stated limit but Instagram re-encodes to ~3.5 Mbps for 1080p Reels
Captions: burn them in if you need guaranteed positioning — Instagram's auto-captions position varies

YouTube: Quality Matters More Than Format

YouTube accepts almost any common format. What it cares about more:

Resolution: Upload at 4K even if you shot in 1080p — YouTube gives 4K uploads better initial reach and quality tiers
Frame rate: Match your source — don't convert 24fps to 30fps or you'll get judder
Color space: YouTube supports HDR (Rec. 2020, HLG, PQ). For SDR, use sRGB/Rec. 709
Codec choice: H.265 uploads are smaller at equivalent quality. YouTube's internal VP9/AV1 encode applies regardless of what you upload
Thumbnail image: PNG or JPG, 1280×720 minimum, under 2MB

TikTok: Strict File Size Limits

TikTok's 287.6 MB file size limit is the tightest of all major platforms. For longer videos (up to 10 minutes), this requires careful bitrate management:

1 minute at 1080×1920, 30fps: target 15–25 Mbps → ~112–188 MB ✓
3 minutes at 1080×1920, 30fps at same bitrate: ~340–565 MB — exceeds limit!
For 3+ minute TikToks: compress to ~8–10 Mbps (good quality, 1080p) → ~180 MB for 3 minutes ✓

TikTok re-encodes all uploads to H.264 regardless of source codec, so encoding in H.265 to save file size for upload is a good strategy for longer videos.

LinkedIn: Desktop-First Audience

LinkedIn viewers are often on desktop, so 16:9 landscape works better here than on Instagram. Key specs:

Autoplay is muted by default — add captions or on-screen text for context
Optimal length: 30–90 seconds for organic posts; LinkedIn data shows 30s videos have highest completion rate
Aspect ratio 1:1 performs well on mobile feeds without cropping issues

Convert Video for Social Media

Convert any video to MP4, change aspect ratio, or extract audio — free, in-browser, no upload needed.

MOV → MP4 All Video Converters

Frequently Asked Questions

What is the best video format for social media?

MP4 with H.264 video and AAC audio is the universal format accepted by every platform. The more important variables are aspect ratio (9:16 for Reels/TikTok/Shorts, 16:9 for YouTube) and file size limits (TikTok 287.6MB is the strictest).

What video format does Instagram accept?

MP4 and MOV. Recommended: MP4 H.264, AAC audio, 30–60fps, max 4GB. For Reels and Stories use 9:16 vertical (1080×1920). Instagram re-encodes all uploads.

What resolution should I upload to YouTube?

Upload at the highest resolution you have — YouTube downscales for viewers. 1080p is the standard; 4K upload gets better treatment from YouTube's algorithm. Use H.264 or H.265 codec, match your source frame rate.

What aspect ratio does TikTok use?

9:16 vertical (1080×1920) is primary. Square (1:1) is supported. Horizontal (16:9) works but gets black bars. Max file size is 287.6 MB — for longer videos, compress to ~8–10 Mbps bitrate.

Does Twitter/X support MP4 video?

Yes. MP4 (H.264, AAC) and MOV. Max 512MB, max 140 seconds for standard accounts. Twitter/X re-encodes all uploads. Upload at highest quality within the size limit.