# HDR AVIF to SDR PNG Tone Mapper

Decode PQ or HLG AVIF, convert BT.2020 to sRGB, and tone map highlights into a viewable SDR PNG.

> Canonical page: https://elysiatools.com/en/tools/hdr-avif-to-sdr-png

- **Category:** Media

- **Keywords:** image, bit depth, PNG, color, convert

## Overview

Convert high dynamic range (HDR) AVIF images encoded in PQ or HLG into standard dynamic range (SDR) PNG files. This tool decodes BT.2020 color spaces, applies customizable tone mapping curves like Hable, Reinhard, or Mobius, and outputs sRGB-compatible PNGs with optional embedded color profiles to prevent washed-out colors on standard displays.

## Inputs

- **HDR AVIF Image** (file)
- **Tone Mapping Curve** (select)
- **Source Peak Brightness (nits)** (number)
- **Target SDR Brightness (nits)** (number)
- **Highlight Desaturation** (range)
- **Embed sRGB Profile** (checkbox)

## When to use

- When you need to display HDR AVIF screenshots or photos on legacy web browsers or devices that only support SDR PNG.
- When preparing HDR image assets for design tools, presentations, or documents that do not support high dynamic range rendering.
- When you want to correct washed-out colors in PQ or HLG AVIF files by tone mapping them to standard sRGB color space.

## How it works

- Upload your PQ or HLG encoded HDR AVIF image file.
- Select a tone mapping curve (Hable, Reinhard, or Mobius) and configure parameters like source peak nits, target SDR nits, and highlight desaturation.
- The tool decodes the BT.2020 color space, maps the highlights to the target SDR range, and converts the output to sRGB.
- Download the processed SDR PNG image, optionally embedded with an sRGB color profile.

## Use cases

- Converting HDR game screenshots captured in AVIF format to SDR PNG for sharing on social media.
- Preparing HDR camera photos for web publishing where standard sRGB compatibility is required.
- Batch-processing HDR assets for software development environments that only accept standard 8-bit PNG images.

## Frequently asked questions

### What HDR formats are supported?

The tool supports HDR AVIF files encoded with PQ (Perceptual Quantizer) or HLG (Hybrid Log-Gamma) transfer functions.

### Which tone mapping curve should I choose?

Hable Filmic offers a film-like roll-off, Reinhard is a classic linear-to-nonlinear mapper, and Mobius preserves midtone contrast well.

### What does the highlight desaturation setting do?

It reduces color saturation in extremely bright areas to prevent clipping and maintain natural-looking highlights during conversion.

### Why does the output look different from my HDR display?

The tool compresses the high dynamic range of HDR (up to 10,000 nits) into standard dynamic range (typically 100 nits) so it can be viewed on standard SDR screens.

### Can I embed the sRGB profile in the output PNG?

Yes, you can check the 'Embed sRGB Profile' option to ensure consistent color rendering across different web browsers and image viewers.

## 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.
- [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
- [Batch Image Convert](https://elysiatools.com/en/tools/image-batch-convert): Convert multiple image files between different formats like JPG, PNG, WebP, AVIF, TIFF, GIF with quality settings and batch processing
- [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
- [Convert PNG to AVIF](https://elysiatools.com/en/tools/png-to-avif): Convert PNG images to AVIF format with next-generation compression and superior quality-to-size ratio
- [Adaptive 12-Point Hidden Watermark](https://elysiatools.com/en/tools/adaptive-12-point-hidden-watermark): Add a subtle text watermark to one image or every supported image in a ZIP, at all, random, or chosen perimeter positions with automatic dark/light local contrast.
- [Batch Image Convert](https://elysiatools.com/en/tools/batch-convert): Convert multiple images to different formats with quality settings and batch processing

## Samples

- [PNG Viewer Samples](https://elysiatools.com/en/samples/png-viewer-samples): Sample PNG, BMP and AVIF images for the in-browser PNG Viewer
- [AVIF Samples](https://elysiatools.com/en/samples/avif-samples): Sample AVIF images in different aspect ratios and themes with modern compression
- [PNG Samples](https://elysiatools.com/en/samples/png-samples): Sample PNG images in different aspect ratios and resolutions
- [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