Convert MKV to WEBM

MKV → WEBM. Source file ≤ 2 GB · Output ≤ 1 GB.

Matroska can hold several kinds of video and audio codecs. WebM uses VP8, VP9 or AV1 video and Opus or Vorbis audio here.

MKV → WEBM: Example settings

60 s • VP9 4,000 kbps + Opus 192 kbps ≈ 31.44 MB

WEBM: Output

Sizes are examples, not guarantees. Container overhead is extra; variable bitrate and image content change the result. Keep the original and compare the output.

JavaScript is required for file selection and processing.