Image Format Converter

Convert between PNG, JPEG, WebP, SVG, and ICO formats with adjustable quality settings.

Resize images by width, height, or both. Maintains aspect ratio when only one dimension is specified.

• Rectangle: Click two corners to define a rectangular crop area
• Circle: Click center point, then click to set radius for circular crop
• Polygon: Click to add points (minimum 3) for custom polygon crop
• Magic Wand: Click on a color to select all similar regions. Adjustable tolerance and invert option.
• AI Selfie: Automatically detect and segment people using MediaPipe AI
• Smart Crop: Click to intelligently select objects with adaptive color matching

Multipart form-data with two fields:

• file: Image file (required)
• options: JSON string with conversion settings (required)

{
  "toFormat": "png|jpeg|webp|svg|ico",
  "quality": 1-100,
  "width": number | null,
  "height": number | null,
  "crop": {
    "type": "rect|circle|polygon|magic|selfie|sam",
    "data": {
      // Rectangle: { left, top, width, height }
      // Circle: { cx, cy, r }
      // Polygon: { points: [{x, y}, ...] }
      // Magic/Selfie/SAM: { regions: [[{x,y},...]], invert?: boolean }
    }
  }
}

Binary image data with appropriate Content-Type header and download filename.

const formData = new FormData();
formData.append('file', imageFile);
formData.append('options', JSON.stringify({
  toFormat: 'png',
  quality: 90,
  width: 800,
  crop: {
    type: 'circle',
    data: { cx: 400, cy: 300, r: 150 }
  }
}));

const response = await fetch('/api/image-convert', {
  method: 'POST',
  body: formData
});
const blob = await response.blob();