Compress a video
Make a video smaller for WhatsApp, email or storage. Pick a preset or type the size you want. Your video stays on your device.
Files never leave your device
Choose a video from your gallery or files.
Never made bigger than the original.
Choose a video to see its size.
The sound and the way the picture is turned (portrait or landscape) are kept. The result is an MP4. Keep this tab open while it works.
Working…
Keep this tab open. Large files can take a little while on a phone.
Done
Send it
Opens your phone's share menu — pick any app.
These open in a new tab. Your file is downloaded first; you attach it there yourself.
Your file is downloaded — attach it in the chat or email.
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How to use it
- Step 1: Tap the box and choose a video from your gallery or files. The page shows its length, size and how small it can get.
- Step 2: Pick Small for WhatsApp, For email, Good quality (720p), or type your own size in MB. You can also change the picture size and keep or remove the sound.
- Step 3: Tap Compress the video. Keep the tab open until it finishes, then download or share the new MP4.
Your files never leave your device
This tool runs entirely in your browser. Nothing is uploaded to a server, so your documents and photos stay private. It is free, has no watermark and needs no sign-up.
Frequently asked questions
How small can my video get?
It depends on how long the video is. A short clip can become very small and still look good. A long video squeezed into a few megabytes will look blocky, and the page warns you when the aim is too low. The page shows the original size and the expected size before you start, and the real size when it finishes.
What do the presets do?
Small for WhatsApp makes the picture 480p with light sound and aims for a small file. For email aims for a file that leaves room under common attachment limits. Good quality keeps 720p with better sound. My own size lets you type the size in MB. WhatsApp sets its own limits, which differ between app versions and connections, so check what your WhatsApp allows. Gmail Help says a personal account can attach up to 25 MB in total.
Which videos and phones work?
MP4, MOV from an iPhone, M4V, 3GP and WebM. Your browser must support WebCodecs: recent Chrome, Edge, Samsung Internet and Safari on iPhone do. Some iPhone videos use HEVC (H.265), which some Android browsers cannot read. In that case the page tells you before anything starts.
Will the video stay upright and keep its sound?
Yes. A phone video filmed upright stays upright. The sound is kept unless you turn it off. The result is an MP4 with H.264 picture and AAC sound, which plays almost everywhere. If your browser cannot make H.264, the page says so and saves a WebM instead.
How long does it take, and can I stop it?
It depends on your phone and the video. The page shows the time left and has a Cancel button. Keep the tab open and the screen on; the page asks your phone to keep the screen awake while it works. Very long or very big videos are better done on a computer.
Is my video uploaded?
No. The video is read and compressed inside your browser, on your device. It never goes to our servers or anyone else.