Instagram & Reels
Video too large for Instagram? Compress it first
When Instagram rejects a Reel or feed video—or the upload spins forever—the file is usually too heavy for a reliable mobile upload. Shrink it online, then post as usual.
Phone camera apps and editors often export large MOV or MP4 files. Instagram is picky about size, length, and format. BotMart produces a smaller MP4 tuned for vertical social posts so you can retry the upload without guessing FFmpeg settings.
Common signs the file is too large
- Instagram shows an error about file size or failed upload.
- The progress bar stalls near the end on mobile data.
- The clip works in your gallery but never appears in drafts.
What to do
- Sign in free.
- Upload the clip and choose Social (vertical) for Reels and Stories-style 9:16 video.
- Download the compressed MP4.
- Open Instagram and upload the new file.
Reels vs feed vs landscape
Reels and most Stories are vertical—use the social vertical preset. Landscape posts can use a horizontal social preset. Full walkthrough: compress video for Instagram. For TikTok-style clips, see TikTok and Shorts.
iPhone MOV files
iPhone often saves MOV. BotMart accepts MOV directly—or convert with MOV to MP4 / compress iPhone video.
FAQ
Is Instagram rejecting my video for length, not size?
Sometimes. Reels and feed posts also have duration rules. If the file is small and still fails, check length and try Instagram's supported formats—compression still helps when size is the issue.
Will Reels look blurry?
Compression is lossy. The vertical social preset balances size and clarity for phone screens. Keep your original export as a backup.
How long are files stored?
Uploads and outputs are removed automatically within 24 hours.