Free MKV Converter
Convert videos to MKV in batches online. Use ready-made profiles or compatible codec controls for free, with no sign-up or watermark.
Add files to get started
Convert videos to MKV in batches online. Use ready-made profiles or compatible codec controls for free, with no sign-up or watermark.
Add files to get started
Use this converter to create MKV files for flexible storage with support for multiple audio and subtitle tracks.
Changing containers or codecs can affect file size, compatibility, and quality. Compatible MKV codec choices are H.265 / HEVC, H.264, VP9, AV1, and H.266 / VVC.
Convert up to 2 files per batch, 100 MB each, within the Free allowance of 20 conversions per 24 hours. No account is needed for a free conversion. Save one recipe with a free account to reuse the same settings for the next batch. Paid plans add more recipes, larger batches, and automatic cloud delivery. See the batch limits and cloud delivery plans.
Choose from the available formats below to convert your files to MKV.
Choose from the available formats below to convert your files from MKV.
Convert MKV to MP4 online for a player or upload form that needs MP4. Choose compatible settings, check sound and subtitles, then process the batch free.
Convert MKV to MP3 in batches online and extract the audio track. Use audio profiles and codec-aware controls for free, with no sign-up or watermark.
Your current plan is Free.
Basic unlocks 4 files per batch, 300 MB per file, and 15 minutes of processing time. Compare plans