Compress Video for WhatsApp

The target size starts at 16 MB. The video is compressed on your device.

This page opens the compressor with the target size set to 16 MB, the limit for a video sent as a WhatsApp message. Choose the video, check the After size, press Compress video and send the new file from WhatsApp.

Free Video Compressor

No sign-up. No upload. No size limit.

Drop a video here, or click to choose one MP4, MOV, WebM, MKV and more · any size

Nothing is uploaded — the file is compressed on your device.

Target size

Screen size

Frame rate Format Audio

Original—

After ≈MB

Free to compressNo account, no daily quota, no file size limit.

Nothing is uploadedFiles are processed on your device and never reach a server.

No catch on the outputNo watermark and no size cap.

Updated in the openEvery fix and change is written down on the changelog page.

WhatsApp's limit for video messages

WhatsApp limits a video sent as a media message to 16 MB, which its Help Center puts at about 90 seconds to three minutes of video on most phones (checked September 2026, WhatsApp Help Center). Over that, WhatsApp says the video is too long and does not send it.

A file sent as a document can be up to 2 GB (WhatsApp blog, checked September 2026). The person receiving it has to download it first, and it does not play in the chat like a video message.

What the compressor does with 16 MB

The size you set is aimed 1.5% under, so a 16 MB target lands a little below 16 MB. The compressor spreads that size over the length of the clip. When the result would be too thin for the current screen size, the panel picks a lower resolution itself, marks that row with a dashed amber frame and shows "Resolution set to W × H to reach this size." On long clips it can also show "Audio set to 64 kbps to reach this size."

If the video is already under 16 MB, the target starts at the file's own size and the panel shows "At this setting the file stays about the same size." Click the After size and type a smaller number if you still want it smaller.

Everything runs in your browser. Recordings of several GB work, because the output is written to disk as it is produced. Your original file is not changed.

Before you send

Trim first. Each second you cut leaves more of the 16 MB for the seconds you keep, and Trim Video ↗ does that in a new tab. If the panel has dropped the resolution to fit, a shorter clip may get it back. After compressing, the Compare tab has a slider between the original and the result, and you can step through them 1 or 10 frames at a time. On a phone, save the result to the gallery and pick it in WhatsApp as a video.

Frequently asked questions

What is WhatsApp's video size limit?

16 MB for a video sent as a message (checked September 2026, WhatsApp Help Center). Documents can be up to 2 GB but do not play in the chat.

Why is the result a little under 16 MB?

The compressor aims 1.5% under the size you set.

Can I do this on my phone?

Yes. Open the page in your phone's browser and choose the video from the gallery. Nothing is uploaded, and once the page has loaded it works without a network connection.

My video will not open. Why?

Videos in HEVC (H.265), the format many phones record in, can only be read on devices with a hardware HEVC decoder, because Chrome has no software HEVC decoder. AVI, WMV and FLV files show "This file format is not supported." MP4, MOV, WebM, MKV, TS, M2TS and MTS work.