Compress video for WhatsApp
WhatsApp refusing to send your video? Drop it in and bring it under the 16 MB limit locally — no app to install and nothing uploaded to a server.
Drop a video here, or browse
MP4 · MOV · WebM — compressed right here, nothing uploaded
100% on-device · no signup · no watermark
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Bigger files take longer — your CPU does the work, privately.
Why WhatsApp won’t send your video
WhatsApp caps shared videos at roughly 16 MB. A short phone clip can easily exceed that, especially at 1080p or 4K, so WhatsApp either blocks it or compresses it so hard it looks blocky.
Compressing to a controlled 16 MB target yourself gives a much better-looking result than letting WhatsApp crush it automatically.
Send a longer or higher-quality clip
For clips that simply won’t fit 16 MB at watchable quality, two options help: trim to the key moment, or share as a document (WhatsApp allows larger files sent as “Document”, up to ~2 GB) so it isn’t re-compressed. This tool gets you the small, ready-to-send version in seconds.
Frequently asked questions
What is WhatsApp’s video size limit?
Videos shared in a chat are limited to about 16 MB. You can send much larger files (up to ~2 GB) by attaching them as a Document instead, which also avoids re-compression.
How do I send a long video on WhatsApp?
Either trim and compress it to fit 16 MB, or send it as a Document to skip the limit and keep full quality. For quick sharing, compress to 16 MB with the preset above.
Does compressing reduce quality?
A little — but a controlled 16 MB compression here looks better than WhatsApp’s own aggressive auto-compression, because you keep the resolution and choose the bitrate.
Is anything uploaded?
No. Everything happens in your browser; your video never leaves your phone or computer.