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Compress MP4, MOV and WebM video without uploading

Runs in this tab, on your device
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Shrink screen recordings, phone clips and drafts so they fit through email, chat or a submission form. The video is re-encoded by your own browser, start to finish.

Max size
2 GB
Formats
MP4, MOV, WebM
Uploaded
0 bytes

How to compress a video in three steps

  1. Select the video

    Drop in an MP4, MOV or WebM file. Its container signature is checked first, so you won’t wait on a file that can’t be processed.

  2. Choose a size target

    Pick a smaller output for sharing or keep more quality for editing. Progress is shown while your device encodes.

  3. Save and purge

    Download the compressed clip. DigiCompress then frees the original and the output from memory.

Video is the worst thing to upload — for privacy and for time

Video files are big, and they tend to be personal: family moments, unreleased client work, recordings of meetings or screens that show emails and dashboards. Uploading a 400 MB file to an online compressor means waiting for the upload, waiting in a queue, and trusting a third party with every frame.

DigiCompress uses a WebAssembly build of the widely used FFmpeg encoder, served from our own domain and run inside your browser. Your device does the encoding, so nothing is uploaded and nobody else ever has the footage. The trade-off is honest: re-encoding video is heavy work, and a long clip can take several minutes on an older device. The upside is that you skip the upload and download entirely.

Tips for faster, smaller video

Use a desktop for long clips
Laptops and desktops have more memory and faster processors than phones, so they handle longer or 4K videos far better.
Screen recordings shrink brilliantly
Recordings of slides, code or apps have large still areas that compress very well — often to a small fraction of the original.
Trim before you compress
Cutting the parts you don’t need is the most effective way to reduce size. Trim in your phone’s gallery or editor first.
Keep the tab in front
Browsers slow down background tabs. Leave DigiCompress visible while a long video is encoding.

Supported formats and limits

FormatExtensionsMax sizeCommon source
MP4.mp4 .m4v2 GBAndroid phones, cameras, exports
QuickTime.mov2 GBiPhone and Mac recordings
WebM.webm2 GBBrowser and screen recorders

Only need the soundtrack smaller? The audio compressor is much faster than re-encoding video.

Frequently asked questions

Still unsure? Email hello@digicompress.com.

How long does video compression take?

It depends on the clip length, resolution and your device. Short phone clips usually take under a minute on a modern laptop; long or 4K videos take longer. Progress is shown throughout.

Will the compressed video work on WhatsApp, email and social media?

Yes. The output is a standard, widely supported video file that plays on phones, computers and social platforms.

Can I compress a 4K video?

Yes, up to 2 GB, but encoding 4K is demanding. A laptop or desktop with plenty of free memory is recommended, and large files can take several minutes.

Is the audio kept?

Yes. The soundtrack is kept and compressed alongside the picture.

Why does my phone get warm?

Because your phone is doing the work that an upload-based service would do on its servers. That’s the price of keeping footage private; plugging in for long clips helps.

Are my files uploaded to a server?

No. DigiCompress compresses files with code that runs inside your browser tab. The file is read from your disk into memory on your own device, compressed there, and handed back to you as a download. There is no upload step, so there is no copy of your file on our servers — or anyone else’s.

Is DigiCompress free?

Yes. You can compress 3 files a day without an account. Sign in with Google or an email magic link to compress as many files as you like. We don’t sell anything inside the tool, and we never ask for payment details.

Ready when you are.

Drop your file into the compressor above. Nothing is uploaded — ever.

Back to the compressor