Convert one or more MKV files to WEBM using an interactive, fast, and free video converter tool.
drop your MKV 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
Limits the number of video frames to output. Useful for extracting a short preview or clip. Leave empty to include all frames.
Limits the number of video frames to output. Useful for extracting a short preview or clip. Leave empty to include all frames.
30
Sets the video frame rate. 30 fps is standard for web videos. Lower frame rates reduce file size; higher frame rates increase smoothness.
Sets the video frame rate. 30 fps is standard for web videos. Lower frame rates reduce file size; higher frame rates increase smoothness.
Resize the video to a specific resolution. Example formats: 1920x1080, 1280x720. Leave empty to keep original size.
Resize the video to a specific resolution. Example formats: 1920x1080, 1280x720. Leave empty to keep original size.
Set the display aspect ratio for the output video. Leave it as 'Default' to keep the original.
Set the display aspect ratio for the output video. Leave it as 'Default' to keep the original.
2500k
Sets the target bitrate for video encoding. Higher values improve quality but increase file size.
Sets the target bitrate for video encoding. Higher values improve quality but increase file size.
1
Controls whether to use single-pass or two-pass encoding. Two-pass gives better bitrate control and quality.
Controls whether to use single-pass or two-pass encoding. Two-pass gives better bitrate control and quality.
libvpx-vp9
Choose the video codec for encoding. VP9 offers better compression than VP8 but is slower to encode. 'Copy Original' skips re-encoding.
Choose the video codec for encoding. VP9 offers better compression than VP8 but is slower to encode. 'Copy Original' skips re-encoding.
128k
Set the bitrate for the audio track. Higher values improve audio quality but increase file size.
Set the bitrate for the audio track. Higher values improve audio quality but increase file size.
How to use this MKV to WEBM Converter?
Choose Files: Click 👆 on the Choose Files button and choose input MKV files, or you may drag and drop MKV 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 MKV files are sent to the server for conversion. This all happens in a lightening speed ⚡.
Output: Once the MKVs 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": "mkv-webm",
"multiple": true,
"from": "mkv",
"to": "webm",
"controls": [
{
"type": "number",
"name": "vframes",
"label": "Limit Video Frames",
"optional": true,
"range": {
"min": 1,
"max": 100000
},
"desc": "Limits the number of video frames to output. Useful for extracting a short preview or clip. Leave empty to include all frames."
},
{
"type": "dropdown",
"name": "framerate",
"label": "Frame Rate (FPS)",
"options": [
{
"label": "15 fps",
"value": 15
},
{
"label": "24 fps (Film)",
"value": 24
},
{
"label": "30 fps (Standard)",
"value": 30
},
{
"label": "60 fps (High)",
"value": 60
}
],
"defaultValue": 30,
"desc": "Sets the video frame rate. 30 fps is standard for web videos. Lower frame rates reduce file size; higher frame rates increase smoothness."
},
{
"type": "text",
"name": "resolution",
"label": "Resolution (Width x Height)",
"placeholder": "e.g. 1280x720",
"optional": true,
"desc": "Resize the video to a specific resolution. Example formats: 1920x1080, 1280x720. Leave empty to keep original size."
},
{
"type": "dropdown",
"name": "aspect_ratio",
"label": "Aspect Ratio",
"options": [
{
"label": "Default (Keep)",
"value": ""
},
{
"label": "4:3",
"value": "4:3"
},
{
"label": "16:9",
"value": "16:9"
},
{
"label": "1.7777",
"value": "1.7777"
},
{
"label": "1.3333",
"value": "1.3333"
}
],
"defaultValue": "",
"desc": "Set the display aspect ratio for the output video. Leave it as 'Default' to keep the original."
},
{
"type": "dropdown",
"name": "video_bitrate",
"label": "Video Bitrate",
"options": [
{
"label": "500 kbps (Low)",
"value": "500k"
},
{
"label": "1000 kbps (SD)",
"value": "1000k"
},
{
"label": "2500 kbps (HD)",
"value": "2500k"
},
{
"label": "5000 kbps (Full HD)",
"value": "5000k"
}
],
"defaultValue": "2500k",
"desc": "Sets the target bitrate for video encoding. Higher values improve quality but increase file size."
},
{
"type": "dropdown",
"name": "pass",
"label": "Encoding Pass",
"options": [
{
"label": "1 Pass (Faster)",
"value": 1
},
{
"label": "2 Pass (Better Quality)",
"value": 2
}
],
"defaultValue": 1,
"desc": "Controls whether to use single-pass or two-pass encoding. Two-pass gives better bitrate control and quality."
},
{
"type": "dropdown",
"name": "video_codec",
"label": "Video Codec",
"options": [
{
"label": "libvpx (WebM VP8)",
"value": "libvpx"
},
{
"label": "libvpx-vp9 (WebM VP9)",
"value": "libvpx-vp9"
},
{
"label": "Copy Original",
"value": "copy"
}
],
"defaultValue": "libvpx-vp9",
"desc": "Choose the video codec for encoding. VP9 offers better compression than VP8 but is slower to encode. 'Copy Original' skips re-encoding."
},
{
"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": "Set the bitrate for the audio track. Higher values improve audio quality but increase file size."
}
],
"type": "video"
}
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