MKV Converter
Free MKV converter that runs entirely in your browser. No upload, no signup — convert to MKV or from MKV into 200+ supported formats in one click.
Drop any file here or click to browse
All file types supported
About MKV
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
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
How to convert with the MKV converter
- 1
Choose the MKV file you want to convert from your PC, Mac or mobile device, or simply drag and drop it onto the page.
- 2
When your file is uploaded, the output format is preset to MKV. You can add more files to batch-convert them together.
- 3
Click the gear icon and tweak codec, quality, resolution or other options if you need them, then apply to all files if you want.
- 4
Click the Convert button. When conversion completes, download the result to your computer or save it back to Google Drive / Dropbox.
Frequently Asked Questions
What is an MKV file?▼
MKV (Matroska) is a flexible open container that holds video, multiple audio tracks, and many subtitle streams in one file. It is favored for hi-res movie rips because no format packs more into one file.
Why convert MKV to MP4?▼
Many TVs, phones, and players refuse MKV. Converting to MP4 keeps the same video and audio inside a universally supported container, often with little quality loss.
Does MKV mean higher quality?▼
No — MKV is a container, not a codec. A file inside MKV is no higher quality than the same streams inside MP4. The codec and bitrate determine quality.
Can I keep subtitles when converting MKV?▼
Yes in many cases. MP4 supports some subtitle formats; for full multi-subtitle support an open container like MKV is still best. Converting let you choose which streams to keep.
Are my movies private when converting?▼
Completely — FFmpeg runs in your browser with WebAssembly, so personal videos and family footage never leave your device.
Supported Conversions
Specific converters
100% Free
No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.
No Signup Required
Start converting immediately without creating an account or sharing email address.
Private & Secure
Your files never leave your device. All processing is completed locally for maximum privacy.
Batch Conversion
Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.
Runs in Browser
Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.
200+ Formats
Supports a wide variety of formats including images, documents, audio, video, and more.
MKV Converter Quality Rating
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