Convert AVI Video to MKV Video Online
Convert AVI to MKV online for free. Fast, secure file conversion with no registration required.
AVI vs MKV
| AVI | MKV | |
|---|---|---|
| Full Name | AVI Video | MKV Video |
| Category | Video | Video |
| MIME Type | video/x-msvideo | video/x-matroska |
| File Extension | .avi | .mkv |
| Max Upload | 500 MB | — |
How to Convert AVI to MKV
- Select your AVI file using the upload area above
- Click "Convert to MKV" to start the conversion
- Wait for the conversion to complete
- Download your MKV file
About AVI Format
AVI (Audio Video Interleave) is a multimedia container developed by Microsoft. It supports multiple audio and video codecs but lacks native support for modern features like variable bitrate and subtitles. Still widely used for compatibility.
About MKV Format
MKV (Matroska) is a flexible, open-standard video container that supports unlimited audio tracks, subtitles, and chapter points in a single file. Popular for high-quality video content and media archiving.
Frequently Asked Questions
Upload your AVI file using the upload area above, then click "Convert to MKV". The conversion starts automatically and you can download the result when it's ready.
Yes, FileCraft's AVI to MKV converter is completely free with no registration, watermarks, or hidden fees. You can convert as many files as you need.
Yes. Your files are processed securely and automatically deleted from our servers after conversion. We do not store, share, or access your files.
Most video files convert in a few seconds. Larger files may take slightly longer depending on file size and complexity.
You can upload AVI files up to 500MB for free conversion. For most use cases this is more than sufficient.