Media

PNG to WebP Converter

Convert PNG images to WebP format for better compression and web performance

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/png-to-webp' \
  -F 'file=@/path/to/imageFile.ext'

# 2) Call the tool with the returned filePath values
curl -X POST 'https://api.elysiatools.com/en/api/tools/png-to-webp' \
  -F 'imageFile=/path/to/file.ext' \
  -F 'quality=80' \
  -F 'lossless=false' \
  -F 'keepMetadata=false'

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/png-to-webp

Parameters

Name	Type	Required	Description
imageFile	fileupload required	Yes	—
quality	range	No	WebP quality level (1-100, higher is better, ignored in lossless mode)
lossless	checkbox	No	Use lossless compression for perfect quality (larger file size)
keepMetadata	checkbox	No	Preserve original image metadata (EXIF, IPTC, XMP)

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

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-png-to-webp": {
      "name": "png-to-webp",
      "description": "Convert PNG images to WebP format for better compression and web performance",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=png-to-webp",
      "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": "png-to-webp",
    "arguments": {
  "imageFile": "https://example.com/file.ext",
  "quality": 80,
  "lossless": false,
  "keepMetadata": false
}
  }
}

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).

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