How do I reduce a video's file size?

Upload your video above and pick a quality level. Our server re-encodes it with H.264 — genuinely lowering the bitrate rather than just stripping metadata — and returns a smaller MP4. Most videos shrink by 40–90% depending on the source and level you choose.

How do I make a video smaller without losing quality?

Choose the high-quality level. It keeps the resolution and visible detail while re-encoding at a smarter bitrate, so the result looks virtually identical to the original at a fraction of the size. That's different from truly lossless, but for sharing, uploading, and email it's indistinguishable.

What makes video files so large in the first place?

Phones and cameras record at high bitrates — 4K and 60fps footage can be tens of megabytes per second. Re-encoding at a sensible bitrate removes redundant data and cuts the size dramatically with little visible difference.

What's the largest file I can reduce?

Up to 200 MB. For bigger sources, export a 1080p version first or trim the clip before compressing. Higher-resolution videos see the biggest reductions because there's the most redundant data to remove.

Yes — completely free, no account needed. Your file is processed on our server.

Does it work on iPhone, Android, and desktop?

Yes. It runs in any modern browser on iPhone, Android, Mac, and Windows. Upload your video, reduce the size, and download the smaller file straight back to your device.

Reduce Video File Size

Free online video size reducer — make any video smaller in minutes.

Drop your video here, or click to browse

MP4, MOV, WebM, AVI, MKV — up to 500 MB, 20 min

Free Video Size Reducer

Reduce video file size online — free, fast, and private

This tool re-encodes your video with H.264 on our server — not just stripping metadata, but genuinely lowering the bitrate to make the file smaller, often by 40–90%. Pick a higher quality level to make a video smaller without losing visible quality.

Smaller in minutesNo visible quality lossH.264 MP4 outputNo account needed

Why Reduce Video Size?

Oversized videos are slow to upload, bounce off email attachment limits, and eat storage. Reducing the file size makes a clip easy to send, post, and store — without a cloud link.

Re-encoding at a smarter bitrate shrinks the file while keeping it a standard MP4 that plays everywhere, so a smaller video is still a universally compatible one.

Video Size Guide

How to make a video smaller

Two levers control a video's size: bitrate and resolution. This tool handles both — re-encoding at a lower bitrate and, if you choose, a smaller resolution — to hit the size you need.

Bitrate is what drives size

A video's file size comes mostly from its bitrate — the data used per second. Re-encoding at a lower bitrate is the most effective way to shrink a file while keeping it watchable.

Resolution matters too

Dropping a 4K clip to 1080p, or 1080p to 720p, cuts the size sharply. If your video will only be viewed on a phone or in a feed, a lower resolution saves a lot with no visible loss.

Make it smaller, keep it MP4

The output stays a standard H.264 MP4 — the most compatible video format there is. It plays on every phone, browser, editor, and social platform without conversion.

How To Reduce Video File Size

Four steps to a smaller video

Step 1

Upload your video

Drag and drop your video onto the upload area, or click to browse. MP4, MOV, WebM, AVI, and MKV all work — camera footage, phone clips, and screen recordings.

Step 2

See the estimated size

The tool estimates the reduced file size before you start, so you know roughly how small it will be at each quality level.

Step 3

Reduce on our server

Click Compress and our server re-encodes the video with H.264. Processing usually takes 1–3 minutes.

Step 4

Download the smaller file

Your smaller MP4 downloads automatically — ready to email, upload, or post. Need it smaller still? Pick a lower quality level or trim the clip and reduce again.

Need Captions Too?

Now add captions to your video — free, in your browser

Just made your clip smaller? Add AI-generated, styled captions to it right here — no install, no Premiere needed. Upload, auto-caption, and download a captioned MP4 in minutes.

AI captions in one click

Upload your video and get accurate, styled captions automatically.

100+ languages supported

Auto-detect the language and caption any clip, any length.

Add captions in your browser — free

FAQ

Frequently asked questions about reducing video file size

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