Organic Social Media Specs

Facebook

Photo Guidelines

  • Recommended size: 2400 × 1260 px (landscape, 1.91:1)

  • Square alternative: 1080 × 1080 px

  • Accepted formats: JPG or PNG

  • Maximum file size: 10mb

Video Guidelines

  • Aspect ratio: 16:9 (landscape) or 1:1 (square)

  • Minimum resolution: 1080p (720p acceptable)

  • File size limit: 500mb

  • Format: MP4 or MOV

Caption Guidelines

  • Optimal length: 40–80 characters for engagement

  • Maximum length: 500 characters

  • Links: One link per post (Facebook auto-previews URLs without photo or video)


Instagram

Photo Guidelines

  • Recommended aspect ratio for grid: 4:5 (portrait)

  • Recommended resolution: 1080 × 1350 px

  • Minimum width: 1080 px (maintain 4:5 ratio)

  • Square (1:1) and landscape (1.91:1) are still accepted, but portrait now displays larger in feed and grid.

  • Formats: JPG or PNG, max file size 10 MB

Video / Reels Guidelines

  • Aspect ratio: 9:16 (vertical)

  • Resolution: 1080 × 1920 px

  • Maximum length: Reels preferred under 90 seconds, supports up to 15 mins

  • Format: MP4 (H.264 codec), under 250 MB

Caption Guidelines

  • Ideal length: 125 characters or less (text truncates after that)

  • Maximum length: 2,200 characters

  • Links: Not clickable in captions; use “link in bio”


X (Twitter)

Photo Guidelines

  • Single image: 1200 × 675 px (16:9)

  • Multiple images:

    • Two: 700 × 800 px each

    • Three: 1200 × 675 px

    • Four: 1200 × 600 px

  • Format: JPG or PNG, up to 5 MB each

Video Guidelines

  • Aspect ratio: 1:1 or 16:9

  • Maximum length: 2 minutes 20 seconds

  • Max file size: 512 MB

  • Format: MP4 (recommended)

Caption Guidelines

  • Character limit: 280 characters

  • Links: Clickable

  • Mentions (@handles) supported

  • Up to 4 images or 1 video per post


TikTok

Video Guidelines

  • Aspect ratio: 9:16 (vertical)

  • Resolution: 1080 × 1920 px

  • Maximum length: 10 minutes (ideal: 15–60 seconds)

  • Format: MP4 or MOV

  • Include captions or on-screen text for accessibility

Caption Guidelines

  • Maximum: 2,200 characters

  • Optimal: 150 characters or fewer

  • Links: Only clickable in bio

  • Keep on-screen text and action in the top two-thirds of frame (avoid interface overlay)


Threads

Photo Guidelines

  • Recommended: 1080 × 1350 px (portrait)

  • Up to 10 images per post

  • Formats: JPG or PNG

Video Guidelines

  • Aspect ratio: 9:16 (preferred) or 1:1

  • Maximum length: 5 minutes

  • File size: up to 5 minutes / 512 MB

  • Format: MP4 or MOV

Caption Guidelines

  • Character limit: 500

  • Links: Clickable URLs supported

  • Paragraph spacing supported

Facebook




Instagram

X/Twitter


TikTok