API Documentation

Authentication

No authentication required for up to 10 requests per day. For higher limits, include your API key in the header.

Convert an image to a different format. Supports multipart/form-data or JSON with base64 encoded image.

Request Body

{
  "image": "base64_encoded_image_data",
  "format": "png",
  "quality": 85,
  "metadata": "keep"
}

Response

{
  "success": true,
  "id": "conv_abc123",
  "download_url": "/api/v1/download/conv_abc123",
  "expires_at": "2024-01-01T12:00:00Z",
  "original_size": 102400,
  "converted_size": 85000
}

Example (cURL)

curl -X POST https://jpgtopng.com/api/v1/convert \
  -H "Content-Type: multipart/form-data" \
  -F "image=@photo.jpg" \
  -F "format=png"

Check the status of a conversion job.

Response

{
  "id": "conv_abc123",
  "status": "completed",
  "progress": 100,
  "download_url": "/api/v1/download/conv_abc123"
}

Download the converted file. Links expire after 1 hour.

Response

Returns the converted image file as binary data.