AVI
AVI is a long-established video container commonly found in older Windows and camera workflows.
Open AVI ConverterAVI to MP4 Converter
Convert AVI videos to MP4 locally in your browser with quality and size controls.
Drop AVI videos hereUp to 10 files · 500 MB each · processed locally
No upload
AVAILABLE CONVERTERS
About AVI and MP4
Learn about the source and output formats used in this AVI to MP4 conversion.
MP4
MP4 is the most broadly supported modern video container for browsers, phones and social platforms.
Open MP4 ConverterInputAVI
OutputMP4
Best forvideo editing and publishing
Related Tools
All Video toolsAbout this tool
About AVI to MP4
Use AVI to MP4 to convert AVI videos to MP4 without installing desktop software. Choose a file in the converter above, select the quality, resolution and frame rate that fit your intended use, then download the result.
Browser-based avi to mp4
The conversion engine runs locally in your browser. This keeps supported source files on your device and makes the tool useful for private clips that do not need cloud processing.
Quality and compatibility
Video conversion can use substantial memory and processor time. Shorter, lower-resolution clips finish faster. Keep your original file and check video playback, audio and duration before replacing it.
Three simple steps
How it works
- 1Choose
Add a supported file or paste your content.
- 2Process
The tool works locally in your browser when supported.
- 3Download
Save the result directly to your device.
Frequently asked questions
AVI to MP4 FAQ
How do I use AVI to MP4?
Choose a supported AVI file, review the output settings, start the conversion and download the finished result.
Are my files uploaded?
No. Supported conversion runs locally in your browser, so the source file is not uploaded to zer.ai.
What affects conversion speed?
Video duration, resolution, source codec, output format and your device performance all affect processing time.