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Social media image and video size limits

What each platform accepts as an upload: how large a file may be, how long a video may run, how many files fit on one post and which formats go through. One table per platform, generated from our connector code.

A platform limit, not a working scheduler

No connector has passed its definition of done. This page states what the platform enforces. It does not say that this product publishes there yet.

X

Media limits recorded for X
LimitValue
Images per post4 files
Videos per post1 file
Largest image5.2 MB
Largest animated image15.7 MB
Largest video536.9 MB
Video lengthBetween 1 second and 2 minutes, 20 seconds
Alternative text1,000 characters
Accepted file typesimage/jpeg, image/png, image/webp, image/gif, and video/mp4

Official platform documentation Researched August 4, 2026

Instagram

Media limits recorded for Instagram
LimitValue
Images per post10 files
Videos per post1 file
Largest image8.4 MB
Largest video1.1 GB
Video lengthBetween 3 seconds and 15 minutes
Accepted file typesimage/jpeg, video/mp4, and video/quicktime

Official platform documentation Researched August 4, 2026

Facebook

Media limits recorded for Facebook
LimitValue
Images per post10 files
Videos per post1 file
Largest image10.5 MB
Largest animated image10.5 MB
Largest video1.1 GB
Video lengthBetween 1 second and 4 hours
Accepted file typesimage/jpeg, image/png, image/gif, image/webp, video/mp4, and video/quicktime

Official platform documentation Researched August 4, 2026

LinkedIn

Media limits recorded for LinkedIn
LimitValue
Images per post20 files
Videos per post1 file
Largest image10.5 MB
Largest animated image10.5 MB
Largest video524.3 MB
Largest document104.9 MB
Video lengthBetween 3 seconds and 15 minutes
Accepted file typesimage/jpeg, image/png, image/gif, video/mp4, application/pdf, application/msword, application/vnd.openxmlformats-officedocument.wordprocessingml.document, application/vnd.ms-powerpoint, and application/vnd.openxmlformats-officedocument.presentationml.presentation

Official platform documentation Researched August 4, 2026

TikTok

Media limits recorded for TikTok
LimitValue
Images per post35 files
Videos per post1 file
Largest image21 MB
Largest video4.3 GB
Video lengthBetween 3 seconds and 10 minutes
Accepted file typesvideo/mp4, video/quicktime, video/webm, image/jpeg, and image/webp

Official platform documentation Researched August 4, 2026

YouTube

Media limits recorded for YouTube
LimitValue
Images per postNone
Videos per post1 file
Largest video137.4 GB
Video lengthBetween 1 second and 15 minutes
Accepted file typesvideo/mp4, video/quicktime, video/x-matroska, video/webm, video/mpeg, and video/x-msvideo

Official platform documentation Researched August 4, 2026

Pinterest

Media limits recorded for Pinterest
LimitValue
Images per post1 file
Videos per postNone
Largest image21 MB
Largest animated image21 MB
Accepted file typesimage/jpeg, image/png, image/webp, and image/gif

Official platform documentation Researched August 4, 2026

Bluesky

Media limits recorded for Bluesky
LimitValue
Images per post4 files
Videos per post1 file
Largest image1 MB
Largest animated image1 MB
Largest video52.4 MB
Video lengthBetween 1 second and 3 minutes
Alternative text2,000 characters
Accepted file typesimage/jpeg, image/png, image/webp, image/gif, and video/mp4

Official platform documentation Researched August 4, 2026

Threads

Media limits recorded for Threads
LimitValue
Images per post20 files
Videos per post1 file
Largest image8.4 MB
Largest video1.1 GB
Video lengthBetween 1 second and 5 minutes
Accepted file typesimage/jpeg, image/png, video/mp4, and video/quicktime

Official platform documentation Researched August 4, 2026

Why there are no pixel dimensions here

This dataset records what an upload is rejected for: file size, duration, attachment count and format. It does not record recommended pixel dimensions, so this page prints none. A recommended crop we had not verified would be a guess, and a guess is what sends a person back to redo the artwork.

Why a platform can be missing

A platform with no connector in this build has no recorded media limits, so it has no table here. An empty table of zeros would read as a set of real ceilings, which is the one thing it must not do.

Platform capabilities

Check a real file against these

The preflight checker takes a file size, a duration and a draft, and tells you which platforms would reject them. It runs in your browser as well.

Post preflight checker

Post specs, platform by platform

Where the numbers come from

Each limit is generated from the connector capability code in this repository, and every platform row carries the official documentation page it came from and the date a person read that page.

These tools do not publish anything. No connector has completed provider verification yet, so nothing here connects an account.

Found something wrong on this page

Contact channels will be published here before general availability. No legal or support inbox is operating during this preview.