Mobile sharing
Compress video for WhatsApp when the file is too large
WhatsApp often refuses oversized clips or takes forever on slow connections. BotMart shrinks your video in the cloud so you can send or forward it more easily.
When WhatsApp says your video is too large—or the upload spinner never finishes—the fix is usually a smaller MP4. BotMart compresses in the browser cloud: upload from phone or desktop, pick a preset matched to your clip, download, then share in WhatsApp as usual.
Why compress before sending on WhatsApp?
- Send when the app blocks you — Heavy camera exports and screen recordings often exceed practical sharing limits.
- Faster on mobile data — Smaller files upload and download quicker for you and the recipient.
- No extra apps on your phone — Compress on any device with a browser, then transfer the result back to your phone if needed.
Which preset should I use?
Pick based on how the video was shot:
- Vertical phone clip — Social (vertical) (9:16).
- Landscape / normal horizontal — Social (horizontal) (16:9).
- Still too big? — Try compression again on the output, or upgrade to PRO for higher input limits and stronger presets.
How to compress for WhatsApp (step by step)
- Sign in (free account).
- Open the video compressor and upload your file.
- Choose Social (vertical) or Social (horizontal) based on your clip.
- Download the smaller MP4 when processing finishes.
- Send the new file in WhatsApp (chat, group, or Status).
Formats we accept
MP4, MOV, WebM, and MKV in; MP4 (H.264 + AAC) out. iPhone .MOV files work—convert first with MOV to MP4 if you only need a compatible container before compressing.
FAQ
What file size does WhatsApp allow?
Limits change by platform and update. If WhatsApp rejects your clip, compress until the file is small enough to send comfortably—many users aim well under 100 MB for reliable mobile sharing.
Will quality look bad?
Compression is lossy—you trade some detail for size. For chat sharing, the social presets balance clarity and file weight. Keep your original if you need an archive copy.
How long are files stored?
Uploads and outputs are removed automatically within 24 hours. Only you can access your jobs while they exist.