Media requirements

Which files you can upload, what each platform accepts, and how long REVERB keeps your files.

Files you can upload

  • A post has one video or several photos, not both.
  • Photos: JPEG, PNG or WebP.
  • Videos: MP4, MOV or WebM.

Quality

  • Videos are uploaded exactly as you exported them. REVERB doesn’t transcode them.
  • A PNG or WebP photo gets a JPEG copy for platforms that only take JPEG, such as Instagram. Transparent areas become white there; the editor warns you.

What your upload becomes

You addInstagramFacebookTikTokYouTube
1 photoPostPhoto postPhoto post–
Several photosCarouselMulti-photo postPhoto carousel–
VideoReelReelVideoShort

Limits per platform

The editor checks these before you schedule. They follow what each platform accepts.

PlatformPhotosVideo
InstagramUp to 8 MB each, aspect ratio between 4:5 and 1.91:1, up to 10 in a carouselReels of 3 seconds to 15 minutes, up to 300 MB
FacebookUp to 10 MB eachReels of 3 to 90 seconds, 9:16
TikTokUp to 20 MB each, up to 35 in a post3 seconds to 10 minutes, up to 4 GB
YouTube–Shorts: vertical or square, up to 3 minutes

How long files are kept

  • Uploaded photos and videos are deleted 30 days after a post goes out. The post, its links and stats stay; it then shows without a picture.
  • Drafts nobody touched for 90 days are deleted with their files.