ConvertOnline

Image

Audio

Video

Document

Color

1. Convert Online
2. Video Converters
3. FLV to WEBM

{
  "convert": "flv-webm",
  "multiple": true,
  "from": "flv",
  "to": "webm",
  "controls": [
    {
      "type": "text",
      "name": "vframes",
      "label": "Video Frame Limit",
      "optional": true,
      "placeholder": "e.g., 100",
      "desc": "Limits the number of video frames in the output. Leave blank to convert the entire video."
    },
    {
      "type": "number",
      "name": "framerate",
      "label": "Frame Rate (FPS)",
      "range": {
        "min": 1,
        "max": 120
      },
      "optional": true,
      "desc": "Set the output video's frame rate. Common values include 24, 30, and 60. Leave blank to use the original frame rate."
    },
    {
      "type": "text",
      "name": "resolution",
      "label": "Resolution (WxH)",
      "placeholder": "e.g., 1280x720",
      "optional": true,
      "desc": "Resize the video to a specific resolution (e.g., 1920x1080, 1280x720). Leave blank to keep the original size."
    },
    {
      "type": "dropdown",
      "name": "aspect",
      "label": "Aspect Ratio",
      "options": [
        {
          "label": "4:3 (Standard)",
          "value": "4:3"
        },
        {
          "label": "16:9 (Widescreen)",
          "value": "16:9"
        },
        {
          "label": "1.3333 (4:3 decimal)",
          "value": "1.3333"
        },
        {
          "label": "1.7777 (16:9 decimal)",
          "value": "1.7777"
        }
      ],
      "optional": true,
      "desc": "Set the display aspect ratio for the output video. Leave blank to keep the original aspect."
    },
    {
      "type": "dropdown",
      "name": "video_bitrate",
      "label": "Video Bitrate",
      "options": [
        {
          "label": "500 kbps",
          "value": "500k"
        },
        {
          "label": "1000 kbps (Standard)",
          "value": "1000k"
        },
        {
          "label": "2000 kbps",
          "value": "2000k"
        },
        {
          "label": "4000 kbps",
          "value": "4000k"
        }
      ],
      "defaultValue": "1000k",
      "desc": "Controls the target bitrate of the output video. Higher bitrates improve quality but increase file size."
    },
    {
      "type": "text",
      "name": "video_filter",
      "label": "Video Filters (VF)",
      "optional": true,
      "placeholder": "e.g., scale=1280:720",
      "desc": "Apply advanced FFmpeg video filters like scaling, cropping, etc. Use FFmpeg filtergraph syntax. Optional."
    }
  ],
  "note": "When converting FLV to WebM, FFmpeg defaults to using VP8 or VP9 video codecs and Opus/Vorbis for audio. This profile includes common video parameters such as frame rate, resolution, aspect ratio, and video bitrate. If you're targeting modern browsers or HTML5 video playback, WebM is a preferred output format.",
  "type": "video"
}