Convert HEIC to AVIF

Fast, free, and secure HEIC to AVIF conversion. No registration required.

Converting from heic to avif is one of the most requested file conversions online. Xonvert makes it instant and private. As a image format, HEIC Image prioritizes half the file size of JPEG at equivalent visual quality. The image format AVIF Image takes a different approach with smallest file sizes of any image format at equivalent quality, royalty-free. Xonvert uses the latest WebAssembly codecs, ensuring your HEIC Image to AVIF Image conversion matches the quality of standalone desktop software. Need to convert the other direction too? Just click the swap button to reverse source and target formats.

Benefits of HEIC to AVIF Conversion

There are strong reasons to convert HEIC to AVIF:

Smaller file size: Lossy compression in AVIF Image often produces significantly smaller files than HEIC Image, saving storage space and bandwidth.

Faster loading: AVIF Image files decode faster on most systems, reducing wait times when opening or streaming content.

Legacy system support: AVIF Image is backward-compatible with older systems that may not support newer or proprietary formats like HEIC Image.

Future-proofing: AVIF Image is a modern format with active development and growing adoption.

Eco-friendly: Smaller AVIF Image files mean less bandwidth consumption and lower energy usage during file transfers — a small but meaningful environmental benefit.

Format Breakdown: HEIC vs AVIF

FeatureHEICAVIF
Full NameHEIC ImageAVIF Image
CategoryImageImage
CompressionLossyLossy
Key Strengthhalf the file size of JPEG at equivalent visual qualitysmallest file sizes of any image format at equivalent quality, royalty-free
Key Weaknesslimited Windows, Android and web browser supportslower encoding speed and limited support in older browsers and editors
Primary UseiPhone and iPad photographycutting-edge web optimization
DeveloperMPEG/AppleAlliance for Open Media
Year Released20152019

How HEIC to AVIF Conversion Works

Converting HEIC to AVIF with Xonvert is straightforward:

1. Access the tool — Open this HEIC to AVIF page on any device — desktop, laptop, tablet, or smartphone.
2. Add your content — Select your HEIC file through the file picker or drag it from your file manager.
3. Convert privately — The conversion runs locally in your browser. No files are sent to any server at any point.
4. Get the output — Download your AVIF file immediately. For batch conversions, everything exports as a single ZIP.

Fidelity When Converting HEIC to AVIF

HEIC Image encodes data using perceptual compression that prioritizes human perception. AVIF Image similarly focuses on perceptual quality. The conversion maps between these approaches intelligently. HEIC Image's known limitation — limited Windows, Android and web browser support — is resolved when converting to AVIF Image, which offers smallest file sizes of any image format at equivalent quality, royalty-free. The HEIC Image source uses lossy encoding. The AVIF Image output uses lossy encoding. Since both share the same compression philosophy, quality transfer is highly efficient.

Converting between image formats is one of the most common file operations. When moving from HEIC Image to AVIF Image, key considerations include color depth preservation, transparency support, and compression artifacts. Both HEIC Image and AVIF Image use lossy compression. Re-encoding may introduce minor generational quality loss — similar to photocopying a photocopy. For best results, always convert from the highest quality source available.

Transparency: AVIF supports transparency channels. Since HEIC does not contain transparency data, the output will have a fully opaque alpha channel.

Typical Conversion Scenarios

Common scenarios for HEIC to AVIF conversion:

Conference submissions — Academic and professional conferences specify accepted formats. AVIF is commonly required for image submissions.
Platform upload requirements — Social media and cloud platforms often accept AVIF — converting from HEIC meets their requirements.
Legal documentation — Courts and regulatory bodies often require specific file formats. Convert HEIC to AVIF for compliant submissions.
Reducing file size — AVIF compression can significantly reduce storage requirements compared to HEIC.
CMS uploads — WordPress, Shopify, Squarespace and other CMS platforms work best with AVIF — convert your HEIC assets for smooth uploads.
Sharing with colleagues — Convert HEIC to AVIF when recipients cannot open the original format.

Everything About HEIC to AVIF Conversion

What's the difference between HEIC and AVIF?
HEIC Image is apple's default photo format using hevc compression for 50% smaller files. AVIF Image is next-generation format based on av1 video codec offering best-in-class compression. Key difference: HEIC Image excels at half the file size of JPEG at equivalent visual quality, while AVIF Image offers smallest file sizes of any image format at equivalent quality, royalty-free.
How does the HEIC to AVIF conversion work technically?
Xonvert uses WebAssembly-compiled libraries to decode your HEIC file in-browser, process the image data, and re-encode it as AVIF. All processing happens on your device's CPU.
What happens to my files after conversion?
Nothing — your files exist only in your browser's memory during conversion. Once you close the page, all data is cleared. No files are stored anywhere.
What is HEIC format?
HEIC Image is Apple's default photo format using HEVC compression for 50% smaller files. It is primarily used for iPhone and iPad photography, Apple Photos library storage. Uses HEVC (H.265) video codec for still image compression
Will the conversion strip my EXIF or metadata?
Xonvert preserves metadata (EXIF, XMP, ID3, etc.) when the target AVIF format supports it. You can optionally strip metadata in the settings for smaller, cleaner output files.
Does the conversion preserve metadata?
Xonvert preserves compatible metadata fields when converting between formats. Some format-specific metadata may not carry over if the target format doesn't support it.
Can I share the converted AVIF file directly?
Yes. After conversion, you can download the AVIF file and share it via email, messaging apps, cloud storage, or any other method you prefer.

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