MKV to MP4 Converter — Fast & Free Online
Convert MKV videos to MP4 format for universal compatibility on all devices and media players.
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Supports all major formats
How MKV to MP4 Conversion Works
Matroska Video (MKV) stores video, audio, subtitles, and chapters in an open-standard container that supports virtually every codec. MPEG-4 Part 14 Video (MP4) packages H.264 or H.265 video with AAC audio in a container format widely supported across every platform and device. This conversion changes the file's encoding, compression method, and supported feature set. When the source codecs already match the target container the streams are copied without re-encoding (zero quality loss); otherwise the video is re-encoded at a configurable quality. The result is a standard MP4 file readable by any compatible application. 1converter handles MKV-to-MP4 conversion server-side: files are uploaded over HTTPS, processed on isolated cloud infrastructure, and the converted output is available for download for 24 hours before automatic deletion. No account is required for standard conversions.
Sources & specifications
How to Convert MKV to MP4
Follow these simple steps to convert your MKV files to MP4 format in seconds
Step 1
Upload your MKV video file
Step 2
Select MP4 as output format
Step 3
Choose encoding quality
Step 4
Click "Convert"
Step 5
Download your MP4 video
Average conversion time: Less than 2 minutes
Visual Conversion Preview
Source file
Converting...
Output file
This visualization shows the typical conversion process from MKV to MP4 format, including expected size reduction and quality retention.
Choose Your Conversion Quality
Select the perfect balance between quality and file size for your MKV to MP4 conversion
Low Quality
Smallest file, basic quality
Medium Quality
Balanced size and quality
High Quality
Larger file, great quality
Maximum Quality
Largest file, best possible quality
tips_and_updatesQuality Selection Tips
When to use Low/Medium:
- •Web uploads and social media sharing
- •Email attachments with size limits
- •Quick previews and thumbnails
When to use High/Maximum:
- •Professional printing and publishing
- •Archive and long-term storage
- •When quality is more important than size
Video Tip: Medium quality is ideal for web streaming. Use High or Maximum for videos you plan to edit further or archive.
Why Convert MKV to MP4?
Discover the advantages of converting your MKV files to MP4 format
Universal compatibility
Play on any device
Better streaming
Optimized for online video
Smaller file size
Efficient compression
Apple device friendly
Works on iPhone, iPad, Apple TV
Social media ready
Upload to any platform
Additional Features
Popular Use Cases
See how professionals use our MKV to MP4 converter in real-world scenarios
Playing videos on iPhone/iPad
Convert MKV to MP4 for this purpose quickly and easily.
Uploading to YouTube, Vimeo
Convert MKV to MP4 for this purpose quickly and easily.
Sharing via messaging apps
Convert MKV to MP4 for this purpose quickly and easily.
Streaming on smart TVs
Convert MKV to MP4 for this purpose quickly and easily.
Importing to video editors
Convert MKV to MP4 for this purpose quickly and easily.
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Frequently Asked Questions
Everything you need to know about converting MKV to MP4
Still Have Questions?
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