Free MKV to MP4 Converter Online
Make your video easier to play, upload, and share. Convert MKV to MP4 online, with support for uploads up to 20GB and no desktop app required.
Drag & Drop your MKV file here
MP4, MOV, AVI, MKV, WebM, and other supported video formats, up to 20GB
Files stay private.
Automatically deleted after 24 hours.
Link 20GB upload limit.
5.0/5
Trusted for 1,827,796+ conversions
HOW IT WORKS
Convert MKV to MP4 in three steps
No account, no software installation, and only a few clicks from upload to download.
01
Upload MKV files
Drag and drop or upload the MKV files you want to convert to MP4.
02
Choose to MP4
Choose MP4 as the output format and start the conversion.
03
Download
Download each MP4 file as it finishes, or collect batch results together when a zip download is available.
MKV
MKV is a flexible multimedia container that can hold video, multiple audio tracks, subtitles, chapters, and metadata in one file. It is popular for high-quality video libraries but is not accepted by every browser, mobile app, or editing platform.
MP4
MP4 is one of the most widely supported video containers for web, mobile, social media, presentations, and everyday playback. It balances quality, compatibility, and file size well when paired with common codecs.
USE CASES
Use Cases for MKV to MP4
Common reasons people convert MKV files to MP4.
Play MKV movies on phones and tablets
Many mobile apps support MP4 more consistently than MKV. Convert a compatible copy for straightforward playback on iOS or Android.
Use MKV footage in common video editors
Some browser and desktop editors refuse MKV imports. An MP4 copy can be easier to add to a normal editing timeline.
Upload an MKV clip to a social platform
Social networks rarely accept MKV as a preferred upload format. Convert to MP4 before posting short clips or trailers.
Play video on smart TVs and streaming sticks
MP4 is often a safer choice for household playback hardware. Converting can reduce container-compatibility problems with MKV files.
Share a video with someone who cannot open MKV
Instead of asking the recipient to install a special player, provide an MP4 copy that works in common apps.
Add MKV video to PowerPoint or Keynote
Presentation software is more likely to recognize MP4. Convert the video before embedding it in a deck.
Prepare a browser-friendly download version
If your site offers downloadable video, MP4 is typically easier for users to open than MKV.
Create a simple review file from a multi-track MKV
Keep the original MKV with all tracks and subtitles, and make a simpler MP4 for client or teammate review.
Standardize a mixed personal video library
Convert MKV titles to MP4 when you want one container across media servers, mobile devices, and everyday players.
Move video into a cloud editing workflow
Cloud editors and collaboration tools often expect MP4 uploads. Converting MKV first can simplify ingest.
MORE MKV TOOLS
Explore our other video operations
MKV, or Matroska Video File, is a flexible multimedia container that supports various video, audio, and subtitle codecs. Ideal for high-definition online streaming, MKV files are widely used for storing movies, TV shows, and other video content. With its ability to hold multiple tracks and metadata, MKV is a preferred choice for media enthusiasts seeking quality and versatility.
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Files kept
Auto-delete in 24h
WHY DRAGDROPDO
Built to be quick, safe, and free
Convert MKV files in the browser with a simple workflow designed for privacy, compatibility, and fast handoff.
Private by default
Files are encrypted in transit and automatically removed after 24 hours.
No install required
Run the conversion in your browser — no desktop app and no sign-up wall to get started.
Cloud import
Pull supported files from Google Drive and keep working without downloading them locally first.
Share & download
Download finished files, collect batch results as a zip, or use available share-link and QR options for handoff.
FAQ
Frequently Asked Questions
Answers to common questions about dragdropdo's MKV to MP4 converter.