Convert AVI to MP4

Convert AVI videos to MP4 from your web browser
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Try an easy to use, online AVI to MP4 converter

Need a quick way to turn your AVI videos into MP4s? You’ve come to the right place! Our online tool can convert any AVI video into an MP4 file quickly and easily. All you have to do is upload your clip and we’ll handle the rest! You can bring AVI files over directly from cloud storage services like Google Drive, Dropbox or Onedrive to avoid lengthy upload processes, and take things to the next level by using our online video editor and converter to generate subtitles, cut or trim your videos or enhance their quality in just a few clicks! 

Convert AVI to MP4

A lightning fast, browser based AVI to MP4 converter

Forget about downloading and installing shady converter apps! Flixier runs entirely in your web browser, so you can convert your files without having to download or install anything to your computer. On top of that, we use cloud powered servers to transcode and convert your videos in minutes rather than hours. 

Trim and cut AVI files before converting them

Flixier is not just an AVI video converter. It’s a full blown video editor, so you can use it to easily trim your video or cut out unwanted parts before saving it as an MP4. You’re also free to add text, replace or censor parts of the audio, use filters or combine multiple AVI videos together to save them all as one longer MP4. 

Compress and convert AVI files to MP4 online

If your AVI file takes up too much space, you can also take advantage of Flixier’s video compressor tool. You’ll be able to lower file size by adjusting the bitrate, resolution and frame rate of your video. When you save your compressed video, it gets converted to MP4 automatically, so you can get two things done at once! 

A cloud-integrated AVI to MP4 converter

You don’t need to wait around for long uploads to finish! Flixier lets you bring your AVI files over for conversion straight from cloud storage platforms like Google Drive, Dropbox or OneDrive in seconds. After your videos are converted to MP4, you can have Flixier upload them straight to your cloud drive as well, in order to save time.

How to convert AVI to MP4?

How to convert AVI to MP4?

Click on Get Started to open Flixier in your web browser and drag the AVI file over from your computer. Double click on it in the library to add it to the timeline at the bottom of the screen.

Make any last moment edits

Drag your video from the library over to the timeline at the bottom of the screen. You can cut out parts of your video, trim it, or add text and other elements to it from the menus on the left side of the screen. Go to the Subtitle tab to generate subtitles for your videos, or use the right side menu to enhance the video or audio automatically.

Save your MP4 video

When you’re happy with the way your video looks, click the Export button in the top right corner of the screen. Make sure that Video is selected as the format and then click on Export and Download. Flixier will process your video in a couple of minutes and then it will be saved to your computer.

Why use Flixier to convert AVI to MP4?

Convert AVI to MP4 on Mac

Because Flixier is an online video editor, you can use it on any computer without having to worry about compatibility. That means you can use Flixier to convert AVI files to MP4 on Mac, Windows, ChromeOS or Android just the same. If you create an account, you can even save your library and projects in the cloud to access them from anywhere. 

Enhance your AVI files before converting them to MP4

Make your videos brighter, sharper or livelier before converting them to MP4 using Flixier! Our video enhancer allows you to improve the quality of your videos easily with brightness, sharpness, vibrance and saturation sliders. On top of that, you can use filters to capture the right mood or tweak the colors manually to get the exact look you want!

Generate subtitles for your AVI videos

Add subtitles to your AVI videos in seconds! All you need to do is upload them to Flixier, right click on them in the timeline and choose Generate Subtitles. Our AI powered subtitle generator will create synchronized subtitles for your video in seconds and you’ll be able to edit them manually, customize and save them to your computer along with your video. 

Convert more than just AVI files 

Flixier is more than AVi to MP4 converter. Our tool is compatible with all popular video, image and audio formats. You can upload your media to Flixier, edit it and combine it all together to create professional looking MP4 videos which you can save to your computer, send over to your cloud storage or publish directly to your YouTube, TikTok, Facebook or Instagram accounts.


I’ve been looking for a solution like Flixier for years. Now that my virtual team and I can edit projects together on the cloud with Flixier, it tripled my company’s video output! Super easy to use and unbelievably quick exports.

Steve Mastroianni -

My main criteria for an editor was that the interface is familiar and most importantly that the renders were in the cloud and super fast. Flixier more than delivered in both. I've now been using it daily to edit Facebook videos for my 1M follower page.

Evgeni Kogan

I'm so relieved I found Flixier. I have a YouTube channel with over 700k subscribers and Flixier allows me to collaborate seamlessly with my team, they can work from any device at any time plus, renders are cloud powered and super super fast on any computer.

Anja Winter, Owner, LearnGermanWithAnja

Frequently asked questions.

Frequently Asked Questions

If you have any further questions, Get in touch with our friendly team
If you have any further questions, Get in touch with our friendly team

Does converting AVI to MP4 lose quality?

Does converting AVI to MP4 lose quality?

If you use a tool like Flixier, there will not be any noticeable loss in quality when converting files from AVI to MP4.

Why is MP4 better than AVI?

Why is MP4 better than AVI?

MP4 and AVI are similar formats, but MP4 is much more efficient and lower in size. MP4 is also compatible with all the big online video sharing platforms, while AVI is supported by a more limited number of devices.

How long does it take to convert AVI to MP4?

How long does it take to convert AVI to MP4?

With Flixier, converting AVI files to MP4 takes only a couple of minutes, because we use powerful cloud servers to do all the heavy work. If you try to do it locally, meaning to use your own computer, converting can take a lot longer, depending on your computer specifications.

Does MP4 reduce quality?

How long does it take to convert AVI to MP4?

Technically, converting a file to MP4 can reduce quality, but as long as you use a tool like Flixier and keep the same video resolution, this reduction should not be noticeable.

Is AVI a good video format?

How long does it take to convert AVI to MP4?

AVI is a good video format, but the files are larger than MP4 and AVI files are not compatible with TikTok and Instagram.

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