Are my uploaded images kept private and secure?

Yes! All uploaded and converted files are stored in temporary isolated storage and permanently auto-deleted after 2 hours. We never inspect, sell, or store your private images.

Can I convert iPhone HEIC photos to JPG or PNG?

Yes! Our server-side decoding engine supports Apple HEIC/HEIF photos from iPhone cameras, auto-rotates EXIF orientation, and renders standard universal JPG or PNG files.

What is the advantage of converting PNG or JPG to WebP?

Google WebP offers 25% to 35% smaller file sizes than JPG at equivalent visual quality while supporting transparent alpha channels. Converting your website images to WebP improves Google Core Web Vitals and SEO rankings.

Is there a limit on how many images I can convert?

ConvertHub is 100% free with unlimited single and batch conversions for files up to 25 MB with no registration or credit card required.

ConvertHubPRO / FREE

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Image Converters•Free & Instant

PNG to AVIF Converter

Convert PNG graphics to high-efficiency AVIF while retaining crisp transparency.

Instant browser processing Private & Auto-Purged

Drag & drop your files here, or browse

Max file size: 25MB (Free Tier)

Supports AVIFSVGHEIC (iPhone)PNGJPGWebPGIFICOTIFF (Up to 10 files)

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How to Convert with PNG to AVIF Converter

Follow these 3 simple steps to complete your conversion in seconds.

Step 1 of 3

Upload Your File

Drag and drop your file into the secure dropzone above or click Browse to select from your device.

💡 Tip: Files up to 25MB are completely free.

Step 2 of 3

Choose Conversion Parameters

Adjust target quality, output format, or unit settings as needed.

Step 3 of 3

Get Instant Output & Share

Click download to save your converted file. All files are automatically deleted after 1 hour.

AVIF (AV1 Image File Format) Compression Specification

Formula representation used for accurate calculations:

Target Bitrate / File Size = (AV1 Intra-Frame Prediction Block Size + Directional Transforms + 10/12-bit HDR Color Matrices) ÷ 8 Compression Efficiency: Up to 50% smaller than WebP and 70% smaller than JPEG at identical SSIM/PSNR visual index.

Calculation Example: A 4.8 MB JPEG photograph encodes into ~1.1 MB in AVIF format (-77% bandwidth saving) with full 4:2:0/4:4:4 chroma fidelity and stripped EXIF headers.

Image Formats Comparison Reference Matrix

Quick reference lookup table for standard unit calculations.

Comparative technical matrix across modern raster and vector image formats.
Image Format	Transparency & Alpha	Typical Size vs JPG
WebP (.webp)	Full Alpha Support (24/32-bit)	25%–35% Smaller
HEIC (.heic)	Alpha & Depth Map Support	50% Smaller
AVIF (.avif)	Alpha & 12-bit HDR	50% Smaller
JPG / JPEG (.jpg)	No Transparency (Opaque)	Baseline (0%)
PNG (.png)	Lossless True Alpha Channel	200%–400% Larger
GIF (.gif)	1-Bit Binary Transparency	Indexed 256 Colors
SVG (.svg)	Vector Alpha Transparency	Infinite Resolution
ICO (.ico)	32-bit Alpha Multi-Res Favicon	16px to 256px

Frequently Asked Questions

Common questions and answers about PNG to AVIF Converter.

ConvertHub leverages high-performance Sharp and MozJPEG rendering pipelines. Our default 85% balanced quality setting maintains high visual fidelity and sharpness while eliminating unnecessary byte overhead.