Media

Convert GIF to WebM

Convert GIF images to WebM video format with modern compression and web optimization

file· File resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

# 1) Upload each file first → returns { filePath }
curl -X POST 'https://api.elysiatools.com/upload/gif-to-webm' \
  -F 'file=@/path/to/gifFile.ext'

# 2) Call the tool with the returned filePath values
curl -X POST 'https://api.elysiatools.com/en/api/tools/gif-to-webm' \
  -F 'gifFile=/path/to/file.ext' \
  -F 'multiFrameHandling=preserve-animation' \
  -F 'resolution=original' \
  -F 'customWidth=0' \
  -F 'customHeight=0' \
  -F 'fps=30' \
  -F 'quality=high' \
  -F 'backgroundColor=transparent' \
  -F 'customBackgroundColor=#ffffff' \
  -F 'videoCodec=libvpx-vp9' \
  -F 'audioCodec=none' \
  -F 'pixelFormat=yuv420p' \
  -F 'loopCount=0' \
  -F 'optimizeForWeb=true'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/gif-to-webm

Parameters

Name	Type	Required	Description
gifFile	fileupload required	Yes	—
multiFrameHandling	select	No	—
resolution	select	No	—
customWidth	number	No	—
customHeight	number	No	—
fps	number	No	—
quality	select	No	—
backgroundColor	select	No	—
customBackgroundColor	color	No	—
videoCodec	select	No	—
audioCodec	select	No	—
pixelFormat	select	No	—
loopCount	number	No	—
optimizeForWeb	checkbox	No	—

File-type parameters must be uploaded first via POST /upload/gif-to-webm, then the returned filePath is passed to the corresponding file field.

Response format

File result

JSON

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-gif-to-webm": {
      "name": "gif-to-webm",
      "description": "Convert GIF images to WebM video format with modern compression and web optimization",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=gif-to-webm",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "gif-to-webm",
    "arguments": {
  "gifFile": "https://example.com/file.ext",
  "multiFrameHandling": "preserve-animation",
  "resolution": "original",
  "customWidth": 0,
  "customHeight": 0,
  "fps": 30,
  "quality": "high",
  "backgroundColor": "transparent",
  "customBackgroundColor": "#ffffff",
  "videoCodec": "libvpx-vp9",
  "audioCodec": "none",
  "pixelFormat": "yuv420p",
  "loopCount": 0,
  "optimizeForWeb": true
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

File parameters accept a public file URL only (https://…). Local paths, data: URIs, and Base64 strings are not supported.

Questions or issues? Contact [email protected]