Convert AVI to MKV Free — Online & Instant

Convert AVI to MKV — Free Online

Fast, secure, no software needed.

📁 Drag & drop your file here

or click to browse • Max 100MB

✅ Free • ⚡ Instant • 🔒 Secure • 💻 No install

How to Convert AVI to MKV

Converting .avi files to .mkv is fast and simple with OpenAnyFile. AVI is a video format: AVI is a legacy video container format by Microsoft. MKV is a video format: MKV (Matroska) is an open video container supporting multiple tracks.

Upload your .avi file to OpenAnyFile
Select MKV (.mkv) as the target format
Click "Convert" and wait for processing
Download your converted .mkv file

Why Convert AVI to MKV?

There are several reasons to convert from .avi to .mkv:

Compatibility: .mkv may be more widely supported by software and devices
File size: Converting between formats can reduce file size for easier sharing
Editing: MKV may offer better editing capabilities for your workflow
Sharing: Recipients may prefer .mkv files for their daily use

About AVI Format

AVI is a legacy video container format by Microsoft. Category: Video. Extension: .avi. Created by: Microsoft.

About MKV Format

MKV (Matroska) is an open video container supporting multiple tracks. Category: Video. Extension: .mkv. Created by: Matroska.

Frequently Asked Questions

How do I convert .avi to .mkv?

Upload your .avi file to OpenAnyFile, select MKV as the target, and download the converted file.

Is AVI to MKV conversion free?

OpenAnyFile offers free file analysis. Conversion may require a one-time payment depending on the file.

Will I lose quality converting .avi to .mkv?

OpenAnyFile preserves maximum quality during conversion. Some format-specific features may not transfer between different file types.

Can I convert .mkv back to .avi?

Yes, you can convert .mkv to .avi using OpenAnyFile as well.

🔓 Unlock Full File Access

Unlimited conversions, batch processing & priority support.

Upgrade to Pro — $12/mo

Cancel anytime.