HEIC to PNG Converter — Bulk

What Is HEIC to PNG Converter?

The HEIC to PNG Converter is a powerful, free browser-based tool that transforms Apple HEIC and HEIF files into universally compatible PNG format. Since Apple adopted HEIC as the default photo format on iPhones starting with iOS 11, millions of users face compatibility issues on Windows, Android, and older software. This tool eliminates that problem entirely — running 100% in your browser with zero server uploads.

Key Features

• Bulk Conversion — Convert hundreds of HEIC files simultaneously with no limits.
• Drag and Drop — Simply drag files into the drop zone. No complicated menus.
• Preview Thumbnails — See previews of each converted file before downloading.
• ZIP Download — Download all converted PNGs as a single ZIP archive.
• Adjustable Scale — Resize images at 100%, 75%, 50%, or 25% during conversion.
• Lossless Quality — PNG preserves full image quality including transparency.
• 100% Client-Side — Your photos never leave your device.
• Multi-Language — Available in English, Arabic, Spanish, Portuguese, and Chinese.
• No Registration — No accounts, no sign-ups, no email required.
• Real-Time Progress — Visual progress bar for batch conversion tracking.

How It Works

The conversion uses the heic2any JavaScript library with WebAssembly decoders:

1. File Reading — Browser reads HEIC files as Blob objects via the File API.
2. HEIC Decoding — heic2any parses the HEIC container and decodes HEVC image data.
3. PNG Encoding — Raw pixels are rendered on Canvas and exported as PNG via toBlob().
4. Optional Scaling — Canvas is resized before export with bicubic interpolation.
5. Output — Each PNG is stored as a Blob with download links. JSZip creates ZIP archives.

Use Cases

• iPhone Photo Sharing — Convert HEIC photos before uploading to websites or emailing to Windows users.
• Web Design — Convert HEIC screenshots to PNG for web projects requiring universal browser support.
• Document Processing — Convert for Word, PowerPoint, and PDF files that may not support HEIC.
• Photo Archiving — Batch convert entire HEIC libraries to PNG for long-term lossless archival.
• Graphic Design — Convert for use in Photoshop, GIMP, Canva, and Figma.
• Cross-Platform — Ensure images work on Windows, Linux, Android, and legacy systems.

Privacy and Security

Your images are processed entirely within your browser using JavaScript and WebAssembly. No data is transmitted over the network. No cloud storage, no tracking, no analysis of your image content. Works offline once loaded. All data is purged when you close the tab.

HEIC vs PNG Comparison

Tips

• Use 100% scale for archival to preserve full resolution.
• Use 50% or 75% for web usage to reduce file sizes.
• Process in groups of 50-100 for very large collections.
• Clear between batches to free browser memory.