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Convert AVIF to HEIF

Convert AVIF images to HEIF format with modern compression and quality preservation

Click to upload file or drag and drop file here

Maximum file size: 100MB Supported formats: image/avif

1 85 100

HEIF quality level (1-100, higher is better but larger file)

1 6 9

Compression level (1=fast/larger, 9=slow/smaller)

Chroma subsampling method for color compression

Preserve original image metadata (EXIF, IPTC, XMP)

Keep alpha channel for transparency support

Key Facts

Category
Media
Input Types
file, range, select, checkbox
Output Type
file
Sample Coverage
4
API Ready
Yes

Overview

Easily convert your AVIF images to the HEIF format while maintaining high visual quality and efficient compression. This tool is designed for users who need to ensure compatibility with Apple devices and modern software ecosystems that prioritize the HEIF/HEIC standard.

When to Use

  • •When you need to make AVIF images compatible with iOS or macOS native applications.
  • •When you want to optimize image storage while preserving high-fidelity visual details.
  • •When migrating web-based AVIF assets to a format better suited for local storage and device-native viewing.

How It Works

  • •Upload your AVIF image file into the converter.
  • •Adjust the quality, compression level, and chroma subsampling settings to suit your specific needs.
  • •Choose whether to retain original metadata and transparency channels.
  • •Click the convert button to generate and download your new HEIF file.

Use Cases

Preparing image assets for native iOS app development.
Standardizing image libraries for better compatibility across Apple devices.
Converting web-optimized AVIF files for professional photography workflows on macOS.

Examples

1. Optimizing Web Assets for iOS

Web Developer
Background
A developer has a collection of high-quality AVIF icons and graphics intended for a web project that also needs to be displayed in a native iOS app.
Problem
The native iOS app does not natively support AVIF, causing display issues.
How to Use
Upload the AVIF files, set quality to 90, and ensure 'Preserve Transparency' is checked.
Example Config
quality: 90, preserveTransparency: true
Outcome
The images are converted to HEIF with transparency intact, allowing them to render perfectly within the iOS application.

2. Archiving Photography Metadata

Photographer
Background
A photographer uses AVIF for web previews but wants to store the final versions in a format compatible with Apple Photos while keeping camera settings.
Problem
Standard conversion often strips away critical EXIF data like camera model and exposure settings.
How to Use
Upload the AVIF file and enable the 'Keep Metadata' option.
Example Config
keepMetadata: true, quality: 95
Outcome
A high-quality HEIF file is produced that retains all original camera metadata, ready for import into Apple Photos.

Try with Samples

image, video, file
AVIF Samples
Sample AVIF images in different aspect ratios and themes with modern compression
title token avif
image
TIFF Samples
Sample TIFF images in different aspect ratios and themes with high-quality uncompressed format
preferred input family image
image
Web Image Processing Python Samples
Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
preferred input family image
image
OpenCV Computer Vision Samples
OpenCV.js examples for image processing, computer vision, and real-time video analysis in JavaScript
preferred input family image
image

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FAQ

What is the difference between AVIF and HEIF?

Both are modern, highly efficient image formats. AVIF is often used for web delivery, while HEIF is widely supported by Apple hardware and software.

Will I lose image quality during conversion?

You can control the quality level using the slider. Setting it to a higher value minimizes quality loss, though it may result in a larger file size.

Can I keep my EXIF data?

Yes, by enabling the 'Keep Metadata' option, the tool will preserve your original EXIF, IPTC, and XMP data.

Does this tool support transparent images?

Yes, ensure the 'Preserve Transparency' checkbox is selected to maintain the alpha channel in your output file.

What is the best compression level to use?

A level of 6 is the default balance. Use lower numbers for faster processing and higher numbers for smaller file sizes.

API Documentation

Request Endpoint

POST /en/api/tools/avif-to-heif

Request Parameters

Parameter Name Type Required Description
imageFile file (Upload required) Yes -
quality range No HEIF quality level (1-100, higher is better but larger file)
compressionLevel range No Compression level (1=fast/larger, 9=slow/smaller)
chromaSubsampling select No Chroma subsampling method for color compression
keepMetadata checkbox No Preserve original image metadata (EXIF, IPTC, XMP)
preserveTransparency checkbox No Keep alpha channel for transparency support

File type parameters need to be uploaded first via POST /upload/avif-to-heif to get filePath, then pass filePath to the corresponding file field.

Response Format

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}
File: File

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-avif-to-heif": {
      "name": "avif-to-heif",
      "description": "Convert AVIF images to HEIF format with modern compression and quality preservation",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=avif-to-heif",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

Supports URL file links or Base64 encoding for file parameters.

If you encounter any issues, please contact us at [email protected]