Convert AVI to MKV Files Online for Free.
Free online tool to convert avi to mkv files quickly and securely. No installation required – start converting your files in just a few clicks!
Drag and drop your files here or click to upload.
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Maximum file size is 10MB
How It Works
How to Convert AVI to MKV
Click inside the file drop area to upload your AVI file or drag & drop it.
Select MKV as the output format and click the 'Convert' button.
Download the converted MKV file instantly after conversion.
You can also send a link to the converted file via email. (Optional)
Convert Your AVI files to other formats
RunConvert.com can convert your AVI files to these other formats:
Convert Your AVI files to other formats
Convert Files to AVI Format
RunConvert.com supports these converters to AVI format:
Convert Files to AVI Format
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Frequently Asked Questions
Here are some common questions and answers about avi file conversions ask by our users on RunConvert.com.
Frequently Asked Questions
Q: How do I convert a corrupted video file?
A: We can’t fix broken files (yet), but if it’s playable, we can usually convert it.
Q: How long does it take to convert a video?
A: Usually just a few seconds for short clips. Bigger files take longer, but our servers are fast. You’ll be done before you know it.
Q: Can I add watermarks or text to videos?
A: Not at the moment. RunConvert is all about clean, simple conversions—but we might add that later.
Q: Why won’t my video upload for conversion?
A: Check your internet speed, file size, or format. If it’s still acting up, our support team can jump in.
Q: Can I convert vertical to horizontal video?
A: You can rotate it afterward, but for now, we don’t automatically adjust orientation.
Q: What if my video has subtitles—will they stay?
A: If they’re hardcoded (burned in), yes. If they’re separate files, they won’t be included—yet.
Q: Is it safe to use RunConvert on public Wi-Fi?
A: We use HTTPS encryption, so your files are secure—even if you're sipping a latte at the airport café.
Q: Will the file name change after conversion?
A: We keep your original name but add the new format, so you always know which one’s which.
Q: How do I know which format to choose?
A: Think about where you’ll use it—social media, mobile, TV? MP4 is a safe bet for most.
Q: Can I change the audio format too?
A: Yes—you can convert the audio along with the video or extract it separately as MP3, WAV, etc.
What is AVI (Audio Video Interleave)?
AVI (Audio Video Interleave) is a multimedia container format developed by Microsoft. It is one of the oldest video formats and is used for storing both audio and video data in a single file.
AVI files can support multiple video and audio streams, making them versatile for various multimedia applications. However, the format does not have high compression, which may result in larger file sizes compared to more modern formats.
How to open AVI?
AVI files can be opened using most media players, including VLC Media Player, Windows Media Player, and PotPlayer.
For macOS users, you can open AVI files with VLC or QuickTime Player (with the necessary codec installed).
AVI is Developed by: Microsoft
AVI was Released on: 1992
Useful Links for AVI:
How to convert AVI?
Converting AVI files to other formats such as MP4, MKV, or MOV is straightforward using an online video converter. Simply upload your AVI file, select your desired output format, and begin the conversion.
Our converter guarantees fast processing while maintaining the quality of your video.
What is MKV (Matroska Video)?
MKV (Matroska Video) is an open-source container format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is designed to be flexible and is often used for high-definition video content.
MKV is a popular choice for storing HD movies, TV shows, and videos due to its ability to support almost any type of video and audio codec, as well as multiple audio tracks and subtitles within one file.
How to open MKV?
MKV files can be opened with several media players, including VLC Media Player, PotPlayer, and Media Player Classic (MPC-HC).
For macOS users, VLC and IINA are great options to play MKV files. You can also use the official Elmedia Player for MKV playback.
MKV is Developed by: Matroska Association
MKV was Released on: 2003
Useful Links for MKV:
How to convert MKV?
You can easily convert MKV files to other formats like MP4, AVI, or MOV using our online video converter. Simply upload the MKV file, select your desired output format, and start the conversion process.
Our tool ensures quick and high-quality conversion, making MKV files compatible with a variety of devices and platforms.
What Our Users Say
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Saved me hours of work
I had to convert multiple PDFs to Word for editing. This tool made it so easy and preserved all the formatting perfectly. The batch processing feature is a game changer.
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Professional quality
As a graphic designer, I need reliable conversion tools. This site delivers professional quality every time. The image conversions maintain resolution and color accuracy.
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Fast and reliable
I've tried many conversion tools but this one is by far the fastest and most reliable. No watermarks, no quality loss, and the interface is so intuitive.
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