Convert AVI to MP4
No uploads, no limits, 100% secure. Convert your AVI files to MP4 format directly in your browser.
How to Convert AVI to MP4
Upload AVI Files
Click the convert button above or drag and drop your AVI files. No file size limits.
Automatic Conversion
Your files are converted to MP4 format instantly using WebAssembly in your browser.
Download MP4 Files
Download converted files individually or get all files in a convenient ZIP archive.
Why Convert AVI to MP4?
Better Compatibility
MP4 format plays smoothly on all devices and media players.
Smaller File Size
Efficient video compression saves bandwidth and storage space.
Web Optimized
Ideal format for streaming, uploading, and sharing online.
Advanced Settings
Control bitrate, resolution, and codec for perfect results.
Your Files Stay 100% Private
Unlike other converters that upload your files to servers, FLINT processes everything directly in your browser. Your AVI files never leave your device.
- No server uploads required
- No file size or quantity limits
- No registration or account needed
- Works offline after initial page load
- Perfect for sensitive or confidential files
Frequently Asked Questions
Is AVI to MP4 conversion completely free?
Yes, absolutely free with no hidden costs, subscriptions, or limits on the number of files you can convert.
Do you upload my AVI files to your servers?
No. All conversions happen locally in your browser using WebAssembly. Your files never leave your computer, ensuring complete privacy.
What file size limits apply?
We don't impose any file size limits. The only constraint is your browser's available memory, which can typically handle files up to several gigabytes.
How long does AVI to MP4 conversion take?
Conversion is typically instant for small files and takes just seconds for larger files, depending on your device's processing power.
Can I convert multiple AVI files at once?
Yes! Upload as many AVI files as you need and convert them all to MP4 in one batch.
Will conversion reduce quality?
Quality depends on the formats and settings. You can adjust quality parameters to balance file size and output quality for your specific needs.