Free online WEBM to M2V converter

What the WEBM format is

WebM is an open container based on Matroska, normally carrying VP8, VP9, or AV1 video with Vorbis or Opus audio. Browsers such as Chrome and Firefox use it for HTML5 playback, while OBS Studio, screen recorders, video editors, and web-export tools can create it. Downloaded browser videos and recordings made for websites commonly use the .webm extension.

What the M2V format is

M2V is an MPEG-2 video-only elementary stream. It is used by DVD authoring applications, older non-linear editors, broadcast systems, and hardware that expects MPEG-2 video outside a general-purpose container. Its MPEG-2 encoding is broadly supported by legacy equipment, but the format has less compression efficiency than VP9 or AV1 and cannot store audio, subtitles, chapters, or metadata in the video stream itself.

How to actually convert WEBM to M2V

Using FFmpeg

FFmpeg is the most controllable desktop option. Install it from the FFmpeg project or your operating system's package manager, open a terminal in the folder containing the source file, and run:

ffmpeg -i "input.webm" -map 0:v:0 -c:v mpeg2video -q:v 2 -pix_fmt yuv420p -an -f mpeg2video "output.m2v"

• -map 0:v:0 selects the first video stream.
• -c:v mpeg2video encodes the video as MPEG-2.
• -q:v 2 requests high quality; values around 3–5 reduce the bitrate and file size.
• -pix_fmt yuv420p improves compatibility with DVD and older hardware.
• -an excludes audio because the M2V format is video-only.
• -f mpeg2video writes a raw MPEG-2 video stream rather than an MPEG program or transport stream.

Replace the filenames with the actual names, retaining quotation marks when they contain spaces. To inspect the source streams before conversion, run ffprobe "input.webm".

If the original WebM contains audio, export it separately and add it in the DVD-authoring or editing application. For an MPEG audio elementary stream, one possible command is:

ffmpeg -i "input.webm" -map 0:a:0 -c:a mp2 -b:a 192k "audio.mp2"

Use the audio codec required by the destination system; some DVD workflows require AC-3 instead of MP2. The video and audio streams must then be synchronized and authored together by that application.

Using the online converter

You can convert the file on 101convert.com for free without installing software. Upload the WebM file, select M2V as the output format, start the conversion, and download the resulting file. Check the service's output settings if the destination requires a specific MPEG-2 frame size, frame rate, or bitrate.

Quality, compatibility, and limitations

This is a lossy re-encode: the VP8, VP9, or AV1 image is decoded and compressed again as MPEG-2, so the M2V cannot improve the source quality and will often be larger. MPEG-2 also needs substantially more bitrate than modern WebM codecs for comparable visual quality.

For DVD production, do not rely on the generic command alone. DVD video normally requires PAL or NTSC dimensions, a permitted frame rate, specific bitrate limits, and often interlaced encoding. Set those parameters in the authoring application or use its DVD-compliant MPEG-2 preset. If the destination only needs a standards-compatible MPEG-2 elementary stream, the generic FFmpeg command is usually sufficient.