Free DNG to HEIF Converter | Convert Adobe DNG RAW to HEIF

100% Free User-Side

DNG to HEIF

Convert Adobe DNG RAW photos from smartphones, drones, Leica, and Hasselblad cameras into space-saving High Efficiency Image Format (HEIF) files.

DNG - Digital Negative RAW format - up to 100MB each

Drop your images here

or click anywhere to browse files

DNG - Digital Negative RAW format - up to 100MB each

How to Convert WebP to PNG?

Upload WebP Images

Drop your WebP files into the upload zone above, or click to choose files from your device. You can convert multiple files at once.

Adjust Advanced Options (Optional)

Click the settings panel if you need to resize the images. Transparency is perfectly preserved by default.

Download Converted PNGs

Click 'Convert to PNG' to process. You can download the PNGs individually or as a single ZIP archive.

Alpha Preservation

Unlike JPG converters, this tool completely retains transparency data so your graphics stay clean and cut-out.

Lossless Conversion

Converts WebP raster images into high-precision PNGs without introducing compression artifacts or color distortion.

100% Offline & Private

No network transfers. All images stay entirely inside your local device memory for complete cryptographic privacy.

What is an Adobe DNG (Digital Negative) file?

DNG, which stands for Digital Negative, is an open, royalty-free raw image standard developed by Adobe Systems under the .dng extension to provide a universal archival format for raw photography.

Why convert DNG to HEIF?

While DNG is an excellent archival raw standard, digital negatives are far too heavy for casual viewing or quick mobile sharing. Converting DNG to HEIF transforms bulky raw captures into lightweight, modern image files that load effortlessly across compatible mobile and desktop software.

Developed by: Adobe Systems

Initial Release: September 27, 2004

What is a HEIF (High Efficiency Image File Format) file?

HEIF, which stands for High Efficiency Image File Format, is a modern multimedia container specification established by the Moving Picture Experts Group (MPEG) under the ISO/IEC 23008-12 standard. Carrying the .heif or .hif file extensions, it encapsulates individual images, image burst sequences, and metadata using advanced video compression codecs like HEVC. It provides high-depth color gradations, transparency, and HDR tonal ranges at roughly half the file size of legacy JPEG files.

How to open and view a HEIF file?

HEIF files can be opened natively on macOS, iOS, Android 9 and newer, and modern Windows operating systems equipped with HEIF codecs. Photo applications such as Adobe Photoshop, Lightroom, GIMP, and darktable also offer comprehensive HEIF reading capabilities.

If you need to convert your pictures into lightweight HEIF files to save storage space while maintaining pristine visual quality, our private client-side converter processes your images instantly inside your web browser without uploading files to remote servers.

Developed by: Moving Picture Experts Group (MPEG)

Initial Release: Summer 2015 (Standardized in ISO/IEC 23008-12)

FAQs

Can I convert iPhone ProRAW and DJI drone DNG files?

Yes! ProRAW and drone DNG files decode seamlessly into compact HEIF photos.

Is DNG to HEIF fast?

Our hardware-accelerated WebAssembly pipeline converts heavy DNG files in seconds.

Is registration required?

100% free with no registration, watermarks, or limits.

Why Convert DNG to HEIF Format?

Converting DNG files into High Efficiency Image Format (HEIF) allows you to reduce file weights significantly while preserving sharp visual fidelity and dynamic color depth.

100% Private & In-Browser: All processing is done locally on your device with zero remote server transfers.
Hardware-Accelerated Encoding: Powered by WebAssembly to convert high-resolution files at peak performance.
Batch Conversion: Convert multiple DNG files concurrently and download all results in a single ZIP.

About this tool

The DNG to HEIF converter by FreeImgLab allows users to seamlessly convert DNG files into ultra-compact, high-fidelity HEIF images with zero server uploads.

Fully processed inside your browser with complete privacy, customizable compression settings, and bulk image processing. You can also resize images using our Bulk Image Resizer or reduce file size with our Bulk Image Compressor.