Format & codec problems
MOV won't upload to Pinterest? Web vs app and the fix
Short answer
Pinterest's Pin spec lists .MOV only for uploads from Android and iOS; web uploads list .MP4 and .M4V. A MOV that fails on the website is therefore expected: convert it to MP4. If it fails in the app too, check the codec inside (Pinterest lists H.264 and H.265) and the length (4 seconds to 5 minutes), then re-export as MP4 with H.264.
Key takeaways
- MOV is listed for Android and iOS uploads, not for the web uploader.
- MP4 is accepted everywhere Pinterest lists.
- The codec inside matters: Pinterest lists H.264 and H.265.
- Video Pin length: 4 seconds to 5 minutes.
Find your case
| What you see | What it usually means | Do this |
|---|---|---|
| MOV rejected on pinterest.com | Web uploader lists MP4 and M4V only | Convert to MP4 (step 2) |
| MOV from an editor fails in the app | Intermediate or professional codec inside the MOV | Re-export as H.264 (step 2) |
| MOV is under 4 seconds or over 5 minutes | Length outside the Pin spec | Trim or extend (step 3) |
| Works as MP4, not as MOV | Codec or container quirk | Use the MP4 (step 2) |
Fix it step by step
Look inside the MOV
ffprobe -hide_banner in.movlists the video codec. If it is anything other than H.264 or HEVC, convert it.Convert to MP4 with H.264
ffmpeg -i in.mov -c:v libx264 -pix_fmt yuv420p -c:a aac -movflags +faststart out.mp4, or remux with-c copyif the codec is already H.264.Fit the length
4 seconds to 5 minutes for a Pin.
Retest from a clean copy
Upload the new MP4 from the same device. A Pin draft started on one device cannot be finished on another, so keep the whole flow on one device.
What to keep when converting
- Same resolution and frame rate as the source.
- CRF 18 to 23 for quality, higher only if the size demands it.
- AAC audio at 128 kbps or more.
Check your file
Extension and MIME type are labels, not proof of the container. Dimensions and duration come from this browser's media reader. This does not detect codecs, bitrate, corruption or platform upload compatibility. Files and measurements are not sent anywhere.
Frequently asked questions
Does Pinterest accept MOV?
In the Android and iOS apps yes. Pinterest's Pin spec lists .MP4 and .M4V only for web uploads.
Why does my MOV fail on the website?
The web uploader does not list MOV. Convert it to MP4.
Should I convert MOV to MP4?
Yes for web uploads; MP4 with H.264 and AAC is the most compatible export.
Sources
- Pinterest Help: Review Pin specs (organic Video Pin file types, length, aspect ratio, safe zones) (official, checked 2026-10-06)
- Pinterest Help: Create a Pin (upload a video) (official, checked 2026-10-06)
Reviewed 2026-10-06. Steps not attributed to a source are general video practice or computed above.