Free AVI to MP4 Converter
Free, fast, and secure. Convert AVI files to MP4 directly in your browser — no uploads, no limits.
Loading converter...
About AVI to MP4 Conversion
Adapt your video content for any platform or device. From social media to professional editing software, our converter ensures your videos play perfectly wherever they're needed.
How to Convert AVI to MP4
Converting files has never been easier or more secure. MixConvert uses advanced browser-based technology to process your files instantly without uploading them to a remote server. Follow these simple steps to get started:
- Select Your Files: Click "Choose Files" or simply drag and drop your AVI files (.avi) into the upload area.
- Choose Output Format: Verify that MP4 (.mp4) is selected as your target output format.
- Convert Instantly: Hit "Convert All" and watch as your files transform instantly using our browser-based engine.
- Download: Download your converted MP4 files individually, or grab them all at once as a ZIP archive.
AVI to MP4 FAQ
How do I convert AVI to MP4 on my phone?
MixConvert works seamlessly on iOS and Android devices. Open this page in your mobile browser, select your AVI files, and convert to MP4 with the same ease as on desktop.
Is it safe to convert AVI to MP4 here?
Yes, your files never leave your device. We use WebAssembly technology to process AVI files locally in your browser, making this the most private way to convert to MP4.
Is there a file size limit for AVI to MP4 conversion?
There are no arbitrary size limits. Since conversion happens locally, your device's RAM and processing power are the only constraints. Most modern devices handle files of any practical size.
How long does AVI to MP4 conversion take?
Most AVI files convert to MP4 in just a few seconds. Processing time depends on file size and your device's CPU. Large video files may take a bit longer.
Can I batch convert multiple AVI files?
Yes! Select multiple AVI files and convert them all to MP4 simultaneously. You can then download each file or grab everything as a single ZIP archive.
Will AVI to MP4 conversion preserve my video quality?
We use high-quality encoding settings that preserve visual fidelity. While any re-encoding involves some processing, our engine is optimized to maintain quality close to your original AVI.
Understanding the Formats
AVI
Audio Video Interleave
Classic Windows video format with wide software support. Less efficient than modern formats but very compatible.
MP4
MPEG-4 Part 14
The universal video format supported by virtually all devices and platforms. The go-to choice for video distribution.
Reverse Conversion
MP4AVIMore AVI Conversions
Convert AVI to other formats