Meet Repurpose Studio: Get social-ready clips from one video. Take me there →

MP4 Compressor

Reduce MP4 file size online for free
MP4 Compressor Screenshot

Make your MP4s smaller and more shareable—without losing quality

Sending videos across channels like email, WhatsApp, Discord, and social media can be a pain. This is especially true for lengthy or high-quality videos, which can’t be sent at all once they’ve passed a certain file size. If you keep finding yourself in this situation, Kapwing’s MP4 compressor is here to help.

Best of all, this feature is available for free. Just upload your MP4 file, click a few buttons, and you’ll have an MP4 that’s smaller in size but comparable in quality. You’ll be able to download your shiny new videos and share seamlessly with colleagues, clients, customers, and friends.

Make your MP4s smaller and more shareable—without losing quality Screenshot

How to compress MP4

Video Poster
  1. Upload your MP4 File
    To get started, upload the MP4 file you’d like to compress. You can upload from your computer or use the drag and drop function. Once it’s in your studio, it’s ready for compression.
  2. Export as a compressed MP4
    Go to the top right of the dashboard and click “Export Project.” A dropdown will appear with a section called “Compression Level.” Use the slider to choose how much MP4 compression you’d like. Below the slider, you’ll see an estimate of how large the file will be based on the level you choose.
  3. Download or share as you like
    When you’ve chosen the level of MP4 compression you’d like, click the green “Export as MP4” button at the bottom of the dropdown. When it’s done, you’ll be able to share a link to the compressed MP4 or download the file to send via email, WhatsApp, Discord, and more.

A modern MP4 compressor for modern people

Fast and intuitive MP4 compression

Kapwing was made for users who expect a great user experience: fast functionality, an intuitive interface, and features that make the whole process easier instead of more complicated. MP4 compression is a breeze—just upload your video file, click a few buttons, and you’ll be on your way with your newly-compressed MP4. Best of all, Kapwing does it all automatically, so you won’t need to manually mess around with compression settings.

Compress MP4 for free

Compress your videos without ever taking out your credit card. Kapwing maximizes functionality while minimizing cost, letting you compress unlimited videos for free. In addition to saving money directly, you’ll also save storage space and memory on your device, since it’s all done online using cloud storage and Kapwing’s servers.

Compress MP4, then collaborate

After you’ve compressed as many MP4 files as you need, you can collaborate with your team members to ensure that those files get where they need to go. All you need to do is send a link to the files, and your teammates will be able to re-edit, share, and make a copy for themselves. If you decide to add some extra love to your video, everyone can collaborate in real time to make it perfect.

More than just an MP4 compressor

Once you reduce MP4 file size, there are many more tools and features that you can take advantage of. Kapwing is a robust and fully-functional online editor, letting you create high-quality videos and audio files from scratch. You can use your own assets, or access millions of royalty-free media assets powered by Pixabay and Pexels. Kapwing offers more than 100 editing features and a robust ecosystem of plugins and integrations—it’s all waiting for you to dive in.

Frequently Asked Questions

Bob, our kitten, thinking

Does compressing MP4 reduce quality?

Generally speaking, compressing MP4 often causes a reduction in the video’s quality. But there are plenty of tools out there, like Kapwing, that help to minimize loss of quality. This happens through the use of modern technology like compression algorithms and encoding techniques. What you’re left with is smaller file sizes with minimal loss in quality, as opposed to other tools which may cause video to become grainy, pixelated, and overall less enjoyable to watch.

How can I reduce the size of an MP4 video online?

The first step is to find an online tool that can help with MP4 compression—Kapwing is one of them. Once you’ve chosen a tool, it can be as easy as a few clicks. Of course, the process will work differently depending on the tool you decide to use, but here’s how it works in a nutshell using Kapwing: just upload the MP4 you want to compress, adjust the export settings to compress the file to your desired compression level, and download the new MP4 file.

How do I compress an MP4 file on Windows PC?

There are plenty of online tools, including Kapwing, to help you with MP4 compression on your Windows PC. In many cases, you’ll be able to compress MP4 files quickly, easily, and for free. (You guessed it—Kapwing is one of the tools that makes the process headache-free.) Simply upload your video, choose your compression settings, and download the final compressed video.

What's different about Kapwing?

Start creating immediately with thousands of templates and copyright free videos, images, music, and GIFs. Repurpose content from the internet by pasting a link.
Kapwing is completely free to start. Just upload a video and start editing. Supercharge your editing workflow with our powerful online tools.
Automatically subtitle and translate videos with our AI-powered Subtitler tool. Caption your videos in seconds, so that no viewers get left behind.
Kapwing is cloud based, which means your videos are wherever you are. Use it on any device and access your content anywhere in the world.
No spam or ads
No spam or ads
We don't serve ads: we're committed to building a quality, trustworthy website. And we will never spam you nor sell your information to anyone.
Kapwing works hard to help make the content you want, when you want it. Get started on your project today.
Whole Foods
UK Parliament
Louis Vuitton
Reivews Gradient Background
Trusted by millions of creators all over the world
Headshot of Michael Trader
Best online video service ever. And a miracle for deaf people.
[Subtitler] is able to autogenerate subtitles for video in almost any language. I'm deaf (or almost deaf, to be correct) and thanks to Kapwing I'm now able understand and react on videos from my friends :)
Michael Trader
Information Services Freelancer
Headshot of Dina Segovia
This tool should be in every social media account managers' bookmark list.
I use this daily to help with video editing. Even if you're a pro video editor, their is no need to be spending hours trying to get the format correct. Kapwing does the hard work for you.
Dina Segovia
Virtual Freelance Worker
Headshot of Eunice Park
It just works!
Kapwing is incredibly intuitive. Many of our marketers were able to get on the platform and use it right away with little to no instruction. No need for downloads or installations - it just works.
Eunice Park
Studio Production Manager at Formlabs
Headshot of Vannesia Darby
With Kapwing, we're always ready to create.
Kapwing is an essential tool that we use in MOXIE Nashville every day. As a social media agency owner, there's a variety of video needs that my clients have. From adding subtitles to resizing videos for various platforms, Kapwing makes it possible for us to create incredible content that consistently exceeds client expectations. With Kapwing, we're always ready to create - from anywhere!
Vannesia Darby
CEO at MOXIE Nashville
Headshot of Grant Taleck
Spend less time learning... and more time crafting stories.
Kapwing helps you spend less time learning complex video editing platforms and more time crafting stories that will connect with your audience and customers. We've used the platform to help create engaging social media clips from our clients' podcasts and we can't wait to see how the platform simplifies this process going forward. If you've learned graphic design with Canva, you can learn video editing with Kapwing.
Grant Taleck
Co-Founder at
Headshot of Panos Papagapiou
It keeps getting better!
Kapwing is probably the most important tool for me and my team. It’s always there to meet our everyday needs in creating scroll-stopping and engaging videos for us and our clients. Kapwing is smart, fast, easy to use and full of features that are exactly what we need to make our workflow faster and more effective. We love it more each day and it keeps getting better.
Panos Papagapiou
Managing Partner at EPATHLON
Headshot of Kerry-lee Farla
By the far the most user friendly software to use.
As a housewife at home looking to start a Youtube channel for fun with absolutely zero editing experience, it was so easy for me to teach myself via their YouTube channel. It takes the tediousness out of editing and encourages creativity. As long as Kapwing is around, I will be using their software.
Kerry-lee Farla
Headshot of Gracie Peng
Kapwing is my secret weapon!
This is one of the most powerful, yet inexpensive and easy-to-use video editing software I've found. I blow my team away with how fast and efficiently I can edit and turnaround video projects.
Gracie Peng
Director of Content
Headshot of Martin James
Kapwing is king.
When I use this software, I feel all sorts of creative juices flowing because of how jam-packed with features the software really is. A very well-made product that will keep you enticed for hours.
Martin James
Video Editor
Headshot of Heidi Rae
Love this site.
As a English Foreign Language Teacher, this site helps me to quickly subtitle interesting videos that I can use in class. The students love the videos, and the subtitles really help them to learn new vocabulary as well as better understand and follow the video.
Heidi Rae
Headshot of Natasha Ball
Excellent subtitling features
[It] works perfectly for me. Have been using Kapwing for a year or so, and their automatic subtitle tool gets better and better every week, it's rare that I have to correct a word. Keep up the good work!
Natasha Ball
Headshot of Mitch Rawlings
Best online video service ever. And a miracle for deaf people.
[Subtitler] is able to autogenerate subtitles for video in almost any language. I'm deaf (or almost deaf, to be correct) and thanks to Kapwing I'm now able understand and react on videos from my friends :)
Mitch Rawlings
Information Services Freelancer
Ready? Let's do this.

Kapwing is free to use for teams of any size. We also offer paid plans with additional features, storage, and support.