MP4 to MKV Converter
Convert your MP4 files to MKV format instantly and free. All processing happens in your browser. No server upload, completely secure and private. AllConvert uses WebAssembly technology for direct browser conversion. No software installation needed, works on any device.
How to Convert
- Upload MP4 File: Select your MP4 file from your device or drag and drop it.
- Select MKV Format: Choose MKV as the output format and adjust settings.
- Start Conversion: Click the convert button. All processing happens in your browser.
- Download MKV File: Download your converted MKV file. No files are uploaded.
FAQ
How to convert MP4 to MKV?
Upload your MP4 file to AllConvert. The tool automatically converts it to MKV format in your browser.
Is MP4 to MKV conversion free?
Yes, converting MP4 to MKV on AllConvert is completely free with no limitations.
Is MP4 to MKV conversion safe?
Yes, all processing happens directly in your browser. No files are ever sent to any server.
Will the quality be preserved?
AllConvert uses optimal settings to maintain the best possible quality when converting MP4 to MKV.
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Features
- Free and unlimited - no registration required
- Secure processing in your browser
- No file upload to any server
- Works on all devices