# PNG to 16-bit PNG Converter Store PNG pixels as true 16-bit-per-channel grayscale, 48-bit RGB, or 64-bit RGBA PNG. > Canonical page: https://elysiatools.com/en/tools/png-to-16bit-png - **Category:** Media - **Keywords:** image, bit depth, PNG, color, convert ## Overview The PNG to 16-bit PNG Converter allows you to upgrade or preserve the bit depth of your PNG images, saving pixels as true 16-bit-per-channel grayscale, 48-bit RGB, or 64-bit RGBA. This tool is ideal for high-fidelity image processing, medical imaging, and 3D displacement maps where color banding must be avoided. ## Inputs - **PNG Image** (file) - **Channel Mode** (select) - **Background Color** (color) - **Preserve Safe Metadata** (checkbox) ## When to use - When preparing heightmaps or displacement maps for 3D rendering that require 16-bit depth to prevent stepping artifacts. - When converting standard 8-bit PNGs to 16-bit-per-channel formats (48-bit RGB or 64-bit RGBA) for high-precision editing. - When saving medical or scientific imaging data that demands true 16-bit grayscale precision without loss of detail. ## How it works - Upload your source PNG image file using the file selector. - Select your desired channel mode, such as preserving the source channels, 16-bit grayscale, 48-bit RGB, or 64-bit RGBA. - Configure optional settings like the background color for transparency flattening and whether to preserve safe metadata. - Process the image and download the high-bit-depth PNG. ## Use cases - Creating smooth 16-bit heightmaps for game engines like Unreal Engine or Unity to eliminate terrain banding. - Preparing high-fidelity digital assets for professional photo editing workflows that require 48-bit RGB color spaces. - Standardizing scientific sensor outputs into uniform 16-bit grayscale PNG files for analysis. ## Frequently asked questions ### What channel modes are supported? You can choose between preserving source channels, 16-bit grayscale, 48-bit RGB (16-bit/channel), and 64-bit RGBA (16-bit/channel). ### Will converting an 8-bit image to 16-bit automatically improve its original quality? It increases the bit depth container to 16-bit, preventing future banding during edits, but it cannot restore detail that was never captured. ### What is the background color option used for? It defines the solid color used to fill transparent areas if you convert to a channel mode that does not support alpha transparency. ### Does this tool preserve metadata? Yes, you can check the option to preserve safe metadata chunks from your original PNG file. ### What is the maximum file size supported? The tool supports PNG files up to 100 MB in size. ## Related tools - [AVIF to 16-bit PNG Converter](https://elysiatools.com/en/tools/avif-to-16bit-png): Preserve SDR AVIF sample precision in a verified 16-bit-per-channel PNG container. - [HDR AVIF to SDR PNG Tone Mapper](https://elysiatools.com/en/tools/hdr-avif-to-sdr-png): Decode PQ or HLG AVIF, convert BT.2020 to sRGB, and tone map highlights into a viewable SDR PNG. - [HEIC to PNG Converter](https://elysiatools.com/en/tools/heic-to-png): Decode HEIC photos to verified 24/32-bit or high-precision 48/64-bit PNG files. - [Image Bit Depth to PNG Converter](https://elysiatools.com/en/tools/image-to-bit-depth-png): Convert images to exact monochrome, indexed, grayscale, RGB, or RGBA PNG bit depths with verified output. - [Image to WEBP Batch Converter](https://elysiatools.com/en/tools/image-to-webp-batch-converter): Convert up to 20 uploaded images, or images inside a ZIP archive, into WebP files packaged as a ZIP - [TIFF to 16-bit PNG Converter](https://elysiatools.com/en/tools/tiff-to-16bit-png): Convert a selected TIFF page to verified 16-bit-per-channel grayscale, RGB, or RGBA PNG. - [Animated WebP/APNG to MP4](https://elysiatools.com/en/tools/animated-webp-apng-to-mp4): Convert animated WebP or APNG images to MP4 video format using ImageMagick or FFmpeg command line tools - [Convert AVIF to PNG](https://elysiatools.com/en/tools/avif-to-png): Convert AVIF images to PNG format with transparency support and high quality output ## Samples - [PNG Samples](https://elysiatools.com/en/samples/png-samples): Sample PNG images in different aspect ratios and resolutions - [PNG Viewer Samples](https://elysiatools.com/en/samples/png-viewer-samples): Sample PNG, BMP and AVIF images for the in-browser PNG Viewer - [Web Image Processing Python Samples](https://elysiatools.com/en/samples/web-image-processing-python): Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion - [Web Image Processing Go Samples](https://elysiatools.com/en/samples/web-image-processing-go): Web Go image processing examples including image reading/saving, image resizing, and format conversion ## Related content - [Image Encoding Tuning for Weight, Loading, and Delivery](https://elysiatools.com/en/hubs/image-encoding-and-delivery-optimization): Tune PNG bit depth, palette, and transparency, choose progressive or baseline JPEG loading, dial WebP quality modes, and compress TIFF for archives until every image fits its destination.