AVI to MKV
Convert AVI to MKV online at Convertig.com. Free, fast and secure video converter — no software needed. Upload your AVI file and get MKV output instantly.
100 MB maximum file size and upto 5 files.
300+ formats supported
Convert between more than 300 different file formats across audio, video, images, documents, ebooks and archives — all in one place.
Lightning fast
Just drop your files, choose an output format and click "Convert". Powerful servers handle the rest in seconds.
Private & secure
Your files are transferred securely and deleted automatically after processing. Your privacy is always 100% protected.
Works everywhere
Convertig is fully browser-based and works on every platform — no apps to download, install or update.
Complete Guide to AVI to MKV
Online file conversion makes it fast and easy to transform your files between hundreds of formats without installing any desktop software. Our converter handles the entire process in your browser — just upload your files, choose the target format, and download the converted result in seconds. We support all major file categories including images, videos, audio files, documents, ebooks, archives, and more, giving you one reliable tool for every conversion task you encounter.
Modern file conversion needs to be fast, reliable, and privacy-respecting. Our system processes your files on secure servers, applies industry-standard conversion algorithms to preserve quality and content, and automatically deletes all uploaded files after processing. You never need to create an account, and every conversion is completely free — no hidden limits, no subscriptions, no watermarks on output files, and no strings attached at any point in the process.
Whether you're a professional working with specialized formats or a casual user who just needs to open a file on a different device, this converter makes the process effortless. Select files from your computer, import from Dropbox or Google Drive, or paste a direct URL — our system downloads and converts automatically. Batch processing lets you convert up to 20 files at once, saving significant time when working with large file collections or preparing content for distribution across multiple platforms.
All conversions are handled with full attention to quality and accuracy. Output files preserve the essential content, structure, and fidelity of the originals to the maximum extent the target format allows. Your files are protected by encrypted transfer and automatically deleted after your session — complete privacy, every time.
How to Convert Files in 3 Easy Steps
Upload Your Files
Click Choose Files or drag and drop files into the upload zone. You can also import directly from Dropbox, Google Drive, or paste a remote URL link.
Choose Output Format
Select your desired target format from the conversion panel. Open the advanced options to fine-tune quality, resolution, bitrate, or other format-specific settings.
Download Your Result
Once complete, click Download for each converted file. Grab them individually or batch-download all at once. Results stay available for up to 24 hours.
AVI to MKV FAQs
You should convert an AVI to an MKV to upgrade your video's capabilities and flexibility. The MKV container is a much more powerful and modern open-source standard. It excels at handling multiple audio tracks and various subtitle formats, features that are poorly supported by the older AVI format.
In many cases, there is no quality loss at all. If the video and audio streams inside your AVI are already in a compatible format, our converter can simply copy them directly into the new MKV container. This process, called remuxing, is extremely fast and perfectly preserves the original quality.
The biggest new feature is robust support for multiple tracks in a single file. An MKV file can easily hold several different audio tracks, such as for different languages or director's commentary, and it can also contain multiple subtitle tracks. This makes it an ideal format for storing a complete version of a movie or show.
This depends on the conversion method. If the video and audio tracks are simply copied (remuxed) without being re-encoded, the final MKV file will be almost exactly the same size. If the tracks need to be re-encoded into a more modern format, the file size could change, and often it will become smaller.
This tool is designed for format conversion, not video editing, so you cannot add a new subtitle track during the process. However, the MKV format is the perfect choice for this task. After you've converted your file, you can easily add subtitle files to your new MKV using free, dedicated software like MKVToolNix.