Convert AVI to MKV — Free & Private
Browser-based AVI to MKV conversion. No registration, no limits, no waiting.
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About AVI to MKV Conversion
Transcode your video files for maximum compatibility. Different platforms and devices require different formats—we help you convert seamlessly between them while maintaining visual quality and audio synchronization.
How to Convert AVI to MKV
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: Select your AVI files by clicking the upload zone or dragging them directly onto the page.
- Choose Output Format: Confirm MKV is set as the destination format in the format selector.
- Convert Instantly: Click the convert button to begin. Your AVI files will be processed locally in seconds.
- Download: Save your new MKV files directly to your device. Batch download available for multiple files.
AVI to MKV FAQ
Can I convert AVI to MKV on mobile devices?
Absolutely! Our converter is fully responsive and works on any smartphone or tablet. Just visit this page, upload your AVI files, and convert them to MKV format—no app required.
Is my data secure when converting AVI files?
100% secure. Unlike cloud converters, MixConvert processes your AVI files entirely on your device using WebAssembly. Your data stays on your computer—we never see it.
How large can my AVI files be?
We don't impose file size restrictions. Your browser handles the conversion, so the limit depends on your device's memory. Typical computers can process very large AVI files without issues.
What's the conversion speed for AVI files?
Conversion is nearly instant for typical AVI files. Your device's processor handles the work, so faster devices complete MKV conversion more quickly.
Does MixConvert support converting multiple AVI files at once?
Batch conversion is fully supported. Upload as many AVI files as you need and convert them all to MKV in one go. A ZIP download option makes it easy to save everything.
What codec is used for MKV output?
MKV output uses widely-compatible, efficient codecs. Our converter balances quality and file size, though you can expect excellent visual results from your converted videos.
Understanding the Formats
AVI
Audio Video Interleave
Classic Windows video format with wide software support. Less efficient than modern formats but very compatible.
MKV
Matroska Video
Flexible container that can hold unlimited video, audio, and subtitle tracks. Popular for high-definition video.
Reverse Conversion
MKVAVIMore AVI Conversions
Convert AVI to other formats