How It Works

1

Upload Your Files

Select one or multiple HEIC or HEIF files from your device. Our converter supports batch uploads, so you can process many images at once with ease.

2

Browser-Based Conversion

Once uploaded, the entire conversion takes place inside your browser using advanced WebAssembly technology. The libheif-js library decodes your HEIC file and renders it via the Canvas API.

No upload to servers — your photos never leave your device. Everything happens locally, ensuring full privacy and security.

3

Choose Output Format & Download

After conversion, you can preview and download your images in JPEG, WebP, or PNG format — either individually or all at once. The output retains excellent quality with optimized file size and universal compatibility.

Technical Details

  • Built with Next.js 14 for optimal performance and client-side speed
  • Powered by libheif-js for decoding HEIC and HEIF image data
  • Uses the Canvas API for high-quality rendering and export to JPEG, WebP, or PNG
  • WebAssembly ensures near-native speed and offline processing