Convert AVI to MP4 for Universal Playback Across Platforms

Convert AVI files to MP4 online for free with Flixier. Switch formats at lightning speed in your browser without downloading any software. Keep your original high quality and bypass strict upload limits to get video files that play everywhere AVI cannot.

Convert AVI to MP4 for Universal Playback Across Platforms

Over 1 million creators use Flixier every day including brands like:

VodafoneNetflixAmazonGoogleMeta

Switch Formats and Edit Videos with Ease

Swap Formats Fast

Fix unplayable videos in seconds. AVI files do not work on most phones or editing programs, but our fast web tool converts them to MP4 instantly. You can also hop over to our main video converter hub to transform other tricky formats like MOV to MP4 or TS to MP4.

Keep Crisp Video Quality

Enjoy crystal-clear visuals after you switch formats. Our powerful cloud tools change the container file without destroying your resolution. You get a lightweight video that looks exactly like your original file, avoiding the blurry pixelation that other free tools cause. 

Cut Unwanted Footage

Cut out boring parts before you save your work. On top of this, you can also edit your videos right in the same browser window. Trim bad takes, crop your video, or compress after converting so your final file is light enough to text or email to anyone. 

Edit Across Any Computer

Convert and edit on Mac, Windows PC, or Chromebook just by opening your browser. Because our system runs entirely in the cloud, you don’t need an expensive computer to process heavy files. Just drag, drop, change the format, and download your new video file instantly. 

How to Convert AVI to MP4 with Flixier

Who This Is For

Marketers
Educators
Business Owners
Social Creators
Marketers

Marketers

Make sure your promotional videos actually play for clients. Convert raw camera files into universal formats that look sharp across all ad platforms, emails, and web browsers.

See How It Works

Educators

Educators

Business Owners

Business Owners

Social Creators

Social Creators

Unlike any tool you've used before

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4.8 / 5

“I have over 11 years in the broadcast industry, building teleproductive facilities, using high-end editing equipment. And this is better than anything else I've used in my lifetime.”

Stephen Buyze
Stephen Buyze
Online Instructor @ Advanced Global MSP Coaching

Still have questions?
We got you!

How do I convert AVI to MP4 online?

Just open Flixier in your browser and upload your AVI file from your computer or Google Drive. Drag the clip onto the timeline, make any cuts you want, and click Export. Our cloud servers will change the format to MP4 automatically and give you a fast download link.

Can I convert AVI to MP4 without losing quality?

Yes. Our online tool processes your media carefully to preserve the original resolution. It switches the internal video container into a universally accepted format without crushing the visual details, giving you a smaller file size with the same great look.

Why won't my AVI file play - does MP4 fix that?

AVI is an old format that most modern phones, tablets, and web browsers do not support. MP4 is the gold standard for the internet. Converting your file to MP4 fixes playback issues instantly, allowing your video to play on any device without errors.

Is there a file size limit for AVI conversion?

Unlike other web tools that cut you off at tiny limits, Flixier handles large files up to 2GB on the free plan. Because everything is processed on our cloud servers, you can upload big videos without worrying about freezing your web browser or crashing your computer.

Is the AVI to MP4 converter free?

Yes, Flixier offers a fully functional free version that works right in your browser. You can upload files, trim footage, add text, and convert videos without paying anything up front or installing any software.