Media Requirements
Image and video requirements for Reddit posts.
Images are limited to 20 MB.
Images
| Property | Requirement |
|---|---|
| Max images | 1 (single), 2 to 20 (gallery) |
| Formats | JPEG, PNG, GIF |
| Max file size | 20 MB |
| Recommended | 1200 x 628 px |
Reddit accepts 16:9, 4:3, 1:1 and 9:16 images.
GIFs display as a still frame until clicked. Reddit may convert them to video, and they load faster under 10 MB.
Videos
| Property | Requirement |
|---|---|
| Max videos | 1 per post |
| Format | MP4 |
| Max file size | 1 GB |
| Resolution | Transcoded server-side, capped at 1080p and 30 fps |
Upload at 1080p or below, because Reddit re-encodes anything larger anyway.
1 GB is Reddit's own cap. A file above it is too large for Zernio to compress, so it reaches Reddit unchanged and Reddit refuses it.
Reddit publishes no maximum duration for an API upload, so file size is the limit that binds.
Hosting rules for media URLs are in Media uploads.
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