Every size and limit, from the source.

Shape

9:16 vertical, 1080 × 1920Full screen on phones. TikTok accepts 360 to 4096 pixels on each side.

Length

Up to 60 minutes uploaded, 10 minutes recorded in the appIf you add a sound first, the sound’s length sets the video’s length.

Frame rate

23 to 60 fps

File type

MP4 (recommended), MOV or WebM; H.264 video recommended

File size

Not published for the appApps that post to TikTok for you can send files up to 4 GB.

TipMost of the caption is hidden behind “more,” so put the keywords people would search for in the first line, and say them out loud in the video.

Sources: TikTok for Developers: media transfer guide ↗ · TikTok Help: camera tools ↗

Shape

9:16 vertical, 1080 × 1920Instagram accepts anything from 1.91:1 (wide) to 9:16 (tall). The profile grid shows a 3:4 crop.

Minimum quality

720 pixels and 30 fps

Length

Up to 20 minutesReels over 3 minutes aren’t recommended to people who don’t follow you.

Hashtags

Up to 5 per reel or postAnnounced by Instagram in December 2025. Pick specific tags over generic ones.

Caption

2,200 characters

TipKeep it under 3 minutes if you want new people to see it. Longer reels mostly reach people who already follow you.

Sources: Instagram Help: reel size and aspect ratios ↗ · Instagram Help: record a reel ↗ · Instagram’s @creators account, December 2025 ↗ · Meta for Developers: Instagram media reference ↗

What counts as a Short

Square or vertical, up to 3 minutesA wider video, or one longer than 3 minutes, uploads as a regular video.

Shape

9:16 vertical, 1080 × 1920

Title

100 characters

File type

MP4 with H.264 video and AAC audio, at the frame rate you filmed

TipShorts can be up to 3 minutes, but every extra second has to earn its place. Check where people swipe away in YouTube Studio.

Sources: YouTube Help: three-minute Shorts ↗ · YouTube Help: resolution and aspect ratios ↗ · YouTube Data API: videos ↗ · YouTube Help: recommended upload settings ↗

Shape

16:9 widescreen, 1920 × 1080 or higherAt least 1280 × 720 for HD. Upload the highest quality you have.

Length and size

Up to 12 hours or 256 GBVideos over 15 minutes need a verified account.

Title and description

100 and 5,000 characters

File type

MP4 with H.264 video and AAC audio, at the frame rate you filmedCommon rates: 24, 25, 30, 48, 50 and 60 fps.

Thumbnail

16:9, at least 1280 × 720, JPG or PNGUp to 2 MB from a phone, 50 MB from a computer.

TipDesign the thumbnail for a phone first: it shows tiny in search and suggestions, so one subject and a few big words beat a busy collage.

Sources: YouTube Help: resolution and aspect ratios ↗ · YouTube Help: videos longer than 15 minutes ↗ · YouTube Data API: videos ↗ · YouTube Help: recommended upload settings ↗ · YouTube Help: custom thumbnails ↗

Shape

9:16 vertical, 1080 × 1920Vertical fills the screen. Other shapes are allowed.

Length

No length limitSince 2025, every video posted to Facebook is a reel, with no length or orientation restrictions.

File size

Not published for reels

TipPlenty of people scroll with the sound off. Burn in captions and make the first frame make sense without audio.

Sources: Facebook Help: aspect ratios ↗ · Meta newsroom, June 2025 ↗

Shape

9:16 vertical, 1080 × 1920 for full screen1:2, 2:3, 3:4, 4:5 and 1:1 also work. Pinterest suggests 2:3 for 15 to 60 seconds.

Length

4 seconds to 5 minutes

File type

MP4 or M4V on the web; MP4, MOV or M4V in the app; H.264 or H.265

Title and description

100 and 800 charactersDescriptions don’t show in the feed but help Pinterest decide who sees the Pin.

TipPinterest is a search engine for ideas. Write the title like a search (“15-minute rice bowls”), not like a caption.

Sources: Pinterest Help: Pin specs ↗