Convert one or more M4V files to WEBM using an interactive, fast, and free video converter tool.
drop your M4V files here
Converted Files
Disclaimer:Please be aware that due to limited server storage, converted files will be automatically purged over time for optimal server performance.
Conversion Settings
Specifies how many video frames to output. Leave blank to convert the entire video.
Specifies how many video frames to output. Leave blank to convert the entire video.
Sets the playback frame rate of the output video. 'Same as source' preserves the original rate.
Sets the playback frame rate of the output video. 'Same as source' preserves the original rate.
Set output video resolution in WxH format (e.g., 1280x720). Leave blank to keep original resolution.
Set output video resolution in WxH format (e.g., 1280x720). Leave blank to keep original resolution.
Sets the display aspect ratio of the output video. Leave as 'Same as source' to keep original ratio.
Sets the display aspect ratio of the output video. Leave as 'Same as source' to keep original ratio.
5M
Controls video quality and file size. Higher bitrate increases quality but also increases file size.
Controls video quality and file size. Higher bitrate increases quality but also increases file size.
libvpx-vp9
Specifies the video codec for the output file. VP9 offers better compression, VP8 is more compatible, and 'copy' keeps the original stream.
Specifies the video codec for the output file. VP9 offers better compression, VP8 is more compatible, and 'copy' keeps the original stream.
128k
Sets the audio bitrate for the output video. Higher bitrate means better audio quality but larger file size.
Sets the audio bitrate for the output video. Higher bitrate means better audio quality but larger file size.
Sets the initial timecode for the output video. Useful for syncing with other media.
Sets the initial timecode for the output video. Useful for syncing with other media.
How to use this M4V to WEBM Converter?
Choose Files: Click 👆 on the Choose Files button and choose input M4V files, or you may drag and drop M4V files to the drop area. You may choose one or more video files. The chosen files are displayed with size information in the same drop area.
Conversion Settings: You may change the conversion parameters like quality 🎛, background color, etc., using the sliders, or color input buttons.
Conversion: Now you can click on the Convert button. This is where the ⛄ magic happens. Your M4V files are sent to the server for conversion. This all happens in a lightening speed ⚡.
Output: Once the M4Vs are converted ✅ to WEBMs, they appear in the download section.
Download Files: You may click 👆 on the big Download button to download ↓ all your converted WEBMs, or you may download individual WEBM by clicking on the respective download button.
Options: There is also a link 🔗 which you can Copy and share it using which you can download the converted WEBM files.
{
"convert": "m4v-webm",
"multiple": true,
"from": "m4v",
"to": "webm",
"controls": [
{
"type": "number",
"optional": true,
"name": "vframes",
"label": "Number of Frames",
"range": {
"min": 1,
"max": 100000
},
"desc": "Specifies how many video frames to output. Leave blank to convert the entire video."
},
{
"type": "dropdown",
"name": "frame_rate",
"label": "Frame Rate (fps)",
"options": [
{
"label": "Same as source",
"value": null
},
{
"label": "24 fps",
"value": 24
},
{
"label": "30 fps",
"value": 30
},
{
"label": "60 fps",
"value": 60
}
],
"defaultValue": null,
"desc": "Sets the playback frame rate of the output video. 'Same as source' preserves the original rate."
},
{
"type": "text",
"optional": true,
"name": "size",
"label": "Resolution",
"placeholder": "e.g. 1920x1080",
"desc": "Set output video resolution in WxH format (e.g., 1280x720). Leave blank to keep original resolution."
},
{
"type": "dropdown",
"name": "aspect_ratio",
"label": "Aspect Ratio",
"options": [
{
"label": "Same as source",
"value": null
},
{
"label": "4:3",
"value": "4:3"
},
{
"label": "16:9",
"value": "16:9"
}
],
"defaultValue": null,
"desc": "Sets the display aspect ratio of the output video. Leave as 'Same as source' to keep original ratio."
},
{
"type": "dropdown",
"name": "video_bitrate",
"label": "Video Bitrate",
"options": [
{
"label": "1 Mbps (Low)",
"value": "1M"
},
{
"label": "2 Mbps (SD Quality)",
"value": "2M"
},
{
"label": "5 Mbps (HD Quality)",
"value": "5M"
},
{
"label": "8 Mbps (Full HD)",
"value": "8M"
}
],
"defaultValue": "5M",
"desc": "Controls video quality and file size. Higher bitrate increases quality but also increases file size."
},
{
"type": "dropdown",
"name": "video_codec",
"label": "Video Codec",
"options": [
{
"label": "Default (libvpx-vp9)",
"value": "libvpx-vp9"
},
{
"label": "libvpx (VP8)",
"value": "libvpx"
},
{
"label": "Copy (no re-encode)",
"value": "copy"
}
],
"defaultValue": "libvpx-vp9",
"desc": "Specifies the video codec for the output file. VP9 offers better compression, VP8 is more compatible, and 'copy' keeps the original stream."
},
{
"type": "dropdown",
"name": "audio_bitrate",
"label": "Audio Bitrate",
"options": [
{
"label": "64 kbps",
"value": "64k"
},
{
"label": "96 kbps",
"value": "96k"
},
{
"label": "128 kbps (Standard)",
"value": "128k"
},
{
"label": "192 kbps",
"value": "192k"
}
],
"defaultValue": "128k",
"desc": "Sets the audio bitrate for the output video. Higher bitrate means better audio quality but larger file size."
},
{
"type": "text",
"optional": true,
"name": "timecode",
"label": "Start Timecode",
"placeholder": "hh:mm:ss",
"desc": "Sets the initial timecode for the output video. Useful for syncing with other media."
}
],
"note": "When converting M4V to WebM, VP9 (libvpx-vp9) is recommended for best quality-to-size ratio. If you choose 'copy' for the codec, ensure the source video is already WebM-compatible; otherwise playback issues may occur.",
"type": "video"
}
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