Convert MKV to AVI

MKV to AVI converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

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All file types supported

About formats

MKV

MKV (Matroska Video) is an open standard, royalty-free multimedia container that can hold an unlimited number of video, audio, subtitle and metadata tracks in a single file. Matroska is popular for high-definition content, anime, and movie archives because it preserves multiple language tracks and subtitle streams. MKV is supported by VLC, MPC-HC and most modern smart TVs.

Developer: Matroska Org
Initial release: 2002
Compression: Lossy or lossless
Color depth: up to 12-bit HDR
Transparency: No
Animation: Yes

Best for

Archiving HD movies with multiple tracks
Storing multiple subtitle languages
Anime and foreign film distribution
Preserving multiple audio streams
High-quality video libraries

Pros

+Open standard and royalty-free
+Holds unlimited video, audio, and subtitle tracks
+Supports lossless and lossy codecs
+Wide support in VLC and smart TVs

Cons

−Not universally supported on mobile devices
−Slightly larger overhead than streamlined containers
−Less ideal for web streaming than MP4

AVI

AVI (Audio Video Interleave) is one of the oldest and most recognized multimedia container formats, introduced by Microsoft in November 1992 as part of its Video for Windows technology. Built on the Resource Interchange File Format (RIFF) structure, AVI interleaves audio and video data in alternating chunks, allowing synchronized playback without requiring sophisticated stream management. The format is codec-agnostic, meaning it can hold video compressed with virtually any codec, from early Cinepak and Indeo to modern DivX, Xvid, and H.264 streams. This flexibility contributed to widespread adoption across personal computers throughout the 1990s and 2000s. AVI supports multiple audio streams, enabling multilingual content within a single file. Despite being decades old, AVI remains one of the most universally recognized multimedia formats and is still widely supported by media players and editing tools across all major operating systems.

Developer: Microsoft
Initial release: November 10, 1992
Compression: Lossy
Color depth: up to 10-bit
Transparency: No
Animation: Yes

Best for

Archiving legacy video footage
Editing in older video software
Storing multiple audio tracks
Playback on classic media players
Cross-codec video container use

Pros

+Codec-agnostic — accepts nearly any video codec
+Supports multiple audio streams for multilingual content
+Universally recognized by media players and editors
+Simple RIFF chunk structure easy to parse

Cons

−No modern streaming or chapter metadata support
−Files tend to be large with inefficient codecs
−No built-in subtitle standard
−Lacks DRM and modern container features

How to convert MKV to AVI

1
Select MKV files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose avi — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your avi file right away.

MKV vs AVI

Property	MKV	AVI
Compression	Lossy or lossless	Lossy
Color depth	up to 12-bit HDR	up to 10-bit
Multi-track	Yes	Yes
DRM support	No	No
Open format	Yes	No

When to use MKV vs AVI

MKV

Archiving HD movies with multiple tracks
Storing multiple subtitle languages
Anime and foreign film distribution
Preserving multiple audio streams
High-quality video libraries

AVI

Archiving legacy video footage
Editing in older video software
Storing multiple audio tracks
Playback on classic media players
Cross-codec video container use

Use cases for MKV → AVI

Archiving HD movies with multiple tracks
Storing multiple subtitle languages
Anime and foreign film distribution
Preserving multiple audio streams
High-quality video libraries
Archiving legacy video footage
Editing in older video software
Storing multiple audio tracks
Playback on classic media players
Cross-codec video container use

Frequently Asked Questions

Is converting MKV to AVI free?

Yes. This MKV → AVI converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert MKV to AVI?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my MKV files uploaded to a server?

No. Files never leave your device. The entire MKV → AVI conversion runs locally in your browser, so your data stays private.

Can I convert multiple MKV files at once?

Yes — batch conversion is supported. Add as many MKV files as you like and convert them to AVI in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting MKV to AVI reduce the quality?

Because both formats use lossy compression, the AVI output will not bring back any quality that has already been lost in your MKV file. Avoid repeated re-encoding to keep the best quality.

Does AVI support transparency?

No — AVI has no alpha channel. Transparent areas of your MKV file will be filled with a solid background colour in the converted file.

How will the file size change after converting MKV to AVI?

Both formats use comparable compression, so the AVI output will be similar in size to your MKV file — typically within 10–20% of each other.

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FREE

100% Free

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SIGNUP

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PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

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