Do these image, video and GIF size limits apply on the free plan?

Yes. They apply on every plan, including the free plan.

What makes a social message fail because of its media?

A video file that is larger, longer or shorter than the network allows, or a video frame rate outside the network's range, can make a message fail. A LinkedIn GIF over the pixel limit and more than 10 images or videos in an Instagram carousel can too.

What happens to a GIF on Facebook?

A .gif file publishes as a still JPEG image. To post a moving GIF, upload it as an MP4 video.

Image, video and GIF sizes for social messages

Q: What should I do if a message still fails because of its media?

Remove the media, upload it again from your computer, and reschedule the message.

Each social network accepts different image, video and GIF formats and sizes. Check your files against the limits below before you schedule a message. They apply on every plan, including the free plan.

What CoSchedule adjusts for you

When CoSchedule publishes directly to Instagram, it converts images in other formats to JPEG and resizes images that are wider than Instagram allows.

What the network changes when it publishes

Facebook: a .gif file publishes as a still JPEG image. To post a moving GIF, upload it as an MP4 video.
TikTok: images are converted to JPEG.
Mastodon: images are scaled down to 1.6 megapixels, and videos and animated GIFs are converted to MP4.

What makes a message fail

Check these before you schedule:

A video file larger than the network allows
A video longer or shorter than the network allows
A video frame rate outside the network's range
A LinkedIn GIF over the pixel limit
More than 10 images or videos in an Instagram carousel

If a message still fails, remove the media, upload it again from your computer, and reschedule. See Fix image and video errors in social messages.

Limits by network

Bluesky

Media	Requirements
Image	JPEG, JPG or PNG. Under 1 MB.
Video	Under 3 minutes.
GIF	Not supported.

Facebook

Media	Requirements
Image	JPEG or PNG. Looks best 720, 960 or 2048 pixels wide. Under 4 MB, including Story images. Up to 20 images per post.
Video	MP4 or MOV. Aspect ratio from 16:9 to 9:16. 5 seconds to 240 minutes.
GIF	Upload as an MP4 video, under 4 GB.

Google Business Profile

Media	Requirements
Image	One image per post. JPEG, JPG or PNG. 10 KB to 10 MB. Recommended 720 x 720 pixels; at least 250 x 250 and at most 10,000 x 10,000.
Video	Not supported.
GIF	Not supported.

Instagram

Media	Requirements
Image	At least 1080 pixels wide recommended; at least 320 pixels wide. Aspect ratio from 1.91:1 to 4:5. Stories: 1080 x 1920 (9:16). Up to 8 MB. Up to 10 images or videos in a carousel.
Video, Feed and Reels	MOV or MP4. 23 to 60 frames per second. At least 720 pixels; at most 1920 pixels wide. Aspect ratio from 0.01:1 to 10:1; 9:16 avoids cropping. Up to 15 minutes and 300 MB.
Video, Stories	Same format as Feed and Reels. Up to 60 seconds and 100 MB.
GIF	Not supported. Convert it to an MP4 video.

Instagram videos also need the moov atom at the front of the file and no edit lists.

Media	Requirements
Image	JPEG, JPG or PNG. Looks best at 1200 x 627 pixels (1.91:1). Under 5 MB. Up to 20 images per post.
Video	One video per post. ASF, FLV, MPEG-1, MPEG-4, MKV, WebM, H264/AVC, MP4, VP8, VP9, WMV2 or WMV3. Up to 30 minutes or 200 MB. Aspect ratio from 1:2.4 to 2.4:1.
GIF	Select only one social profile. Publishes as a web link. Up to 250 frames and 36,152,320 pixels.

Mastodon

Media	Requirements
Image	PNG, JPG or GIF, up to 8 MB. Up to 4 images.
Video	MP4, M4V, MOV or WebM, up to 40 MB.
GIF	Animated GIFs added as images become soundless video.

Media	Requirements
Image	JPEG, JPG or PNG. Looks best at 1000 x 1500 pixels (2:3). Up to 20 MB.
Video	MP4 or MOV. Up to 2 GB and 15 minutes.

Threads

Media	Requirements
Image	JPEG or PNG. Up to 8 MB. Aspect ratio up to 10:1. Up to 20 images per post.
Video	MOV or MP4. Up to 1 GB and 5 minutes. At most 1920 pixels wide. Aspect ratio from 0.01:1 to 10:1; 9:16 avoids cropping.

TikTok

Media	Requirements
Image	Any format except GIF. At most 1080 pixels wide and tall. Up to 35 images.
Video	MP4 (recommended), WebM or MOV. 23 to 60 frames per second. 360 to 4096 pixels wide and tall. Up to 4 GB. Every account can post 3-minute videos; some accounts can post up to 10 minutes.

X (Twitter)

Media	Requirements
Image	JPEG or JPG. At least 600 x 335 pixels. Up to 5 MB.
Video	MOV, QT, MP4, M4P, M4V, MPEG, MPG, AVI, WMV, FLV, OGG, OGV, WebM or MKV. Up to 512 MB and under 140 seconds. Height-to-width ratio from 3:1 to 1:3.
GIF	Up to 15 MB.

YouTube Shorts

Media	Requirements
Video	Up to 3 minutes. Aspect ratio 9:16 or 1:1 to publish as a Short; other ratios are padded to fit.