Image Conversion

Convert between PNG, JPG, WebP, AVIF, and more

Supported Formats

From	To
PNG	JPGWebPAVIFGIFICOBMPTIFFPDF
JPG	PNGWebPAVIFGIFICOBMPTIFFPDF
WebP	PNGJPGGIFICOBMPAVIF
HEIC	PNGJPGWebPAVIFPDF
SVG	PNGJPGWebPPDF
GIF	PNGJPGWebPMP4
BMP	PNGJPGWebPGIF
TIFF	PNGJPGWebPPDF

Code Examples

Basic Conversion

JavaScript

// Convert PNG to WebP
const formData = new FormData();
formData.append('file', fileInput.files[0]);
formData.append('input_format', 'png');
formData.append('output_format', 'webp');
formData.append('quality', 'balanced');

const response = await fetch('https://freefastconverter.com/api/external/v1/convert/image', {
  method: 'POST',
  headers: {
    'X-API-Key': 'ffc_live_your_api_key'
  },
  body: formData
});

const result = await response.json();
console.log(result.job_id, result.status_url);

Resize Image

JavaScript

// Convert JPG to PNG
const formData = new FormData();
formData.append('file', fileInput.files[0]);
formData.append('input_format', 'jpg');
formData.append('output_format', 'png');

const response = await fetch('https://freefastconverter.com/api/external/v1/convert/image', {
  method: 'POST',
  headers: {
    'X-API-Key': 'ffc_live_your_api_key'
  },
  body: formData
});

Compress Image

JavaScript

// Compress image through the external API
const formData = new FormData();
formData.append('file', fileInput.files[0]);
formData.append('quality', 'low');

const response = await fetch('https://freefastconverter.com/api/external/v1/compress', {
  method: 'POST',
  headers: {
    'X-API-Key': 'ffc_live_your_api_key'
  },
  body: formData
});

Batch Conversion

JavaScript

// Batch convert multiple images
const files = Array.from(fileInput.files);

const results = await Promise.all(
  files.map(file => {
    const formData = new FormData();
    formData.append('file', file);
    formData.append('output_format', 'webp');

    return fetch('https://freefastconverter.com/api/external/v1/convert/image', {
      method: 'POST',
      headers: {
        'X-API-Key': 'ffc_live_your_api_key'
      },
      body: formData
    }).then(r => r.json());
  })
);

console.log('Queued jobs:', results.map(r => r.job_id));

Image Options

Option	Type	Description
`width`	integer	Target width in pixels
`height`	integer	Target height in pixels
`fit`	string	cover, contain, fill, inside, outside
`strip_metadata`	boolean	Remove EXIF/metadata from output
`background`	string	Background color for transparent images
`rotate`	integer	Rotation angle (90, 180, 270)