Tumblr image sizes
| Use | Size (px) | Ratio | Notes |
|---|---|---|---|
| Post image | 540 × 810 | 2:3 | Images at this size aren't scaled down on the dashboard. The click-through version can be up to 2048x3072. JPEG, PNG or WEBP up to 20 MB, RGB only. |
| GIF | 540 wide | Any | Keep GIFs at 10 MB or less and no wider than 540 px. GIFs under 3 MB aren't compressed, and every GIF is converted to GIFV. |
| Avatar | 128 × 128 | 1:1 | Up to 10 MB, JPEG, PNG or WEBP. Uploaded GIFs become static. |
| Header image | 2048 × 1152 | 16:9 | Up to 10 MB, JPEG, PNG, WEBP or GIF. |
Which size to use
At 540 × 810 (2:3), post images show on the dashboard without being scaled down. If you want people who click through to see more detail, go up to 2048 × 3072, the largest click-through size.
Post images can be JPEG, PNG or WEBP up to 20 MB, in RGB only. The avatar is 128 × 128 and the header 2048 × 1152 (16:9), each up to 10 MB.
The resizer saves PNG or JPG, not GIF. For GIFs, stay at 540 pixels wide or less and under 10 MB. GIFs under 3 MB aren’t compressed, and every GIF is converted to GIFV.
Tumblr video limits
The resizer handles still images. For video, these are the limits to plan around.
| Use | Max length | Max file size | Ratio | Notes |
|---|---|---|---|---|
| Uploaded video | 10 minutes | 500 MB | Not specified | MOV or MP4. Daily caps of 20 videos and 60 minutes of video. One uploaded video per post. YouTube, Vimeo and Dailymotion links can be embedded instead. |
Tips for Tumblr images
- Use RGB images. Tumblr accepts post images in RGB only.
- Uploaded GIF avatars become static, so use a still image for your avatar.
- A post can have up to 30 image or GIF blocks on the web, or 10 in the apps.
Schedule Tumblr images with Postocial
Schedule image posts to your Tumblr blogs with Postocial, alongside your other networks. Add images from the media library and set the post for the time that suits your readers.
See how Postocial works with Tumblr.
Sources
The Tumblr sizes on this page come from these pages. Where a network publishes no size of its own, we say whose recommendation it is. Researched on . Networks change their limits without notice, so check the official pages before a big launch.