Why is AVIF better than JPG for web use?

AVIF typically achieves 50% smaller file sizes than JPG at equivalent visual quality. It also supports transparency (alpha channel), HDR color, and wide color gamut — none of which JPG supports.

Can I convert multiple HEIC files at once?

Yes — this tool supports batch conversion. Drop up to 25+ files at once, monitor per-file status, then download individually or as a single ZIP archive.

Which browsers support AVIF encoding?

Chrome 85+, Edge 85+, and Firefox 93+ all support AVIF encoding via the Canvas API. Safari has decode support (Safari 16.4+) but encoding via canvas.toBlob may vary. Use Chrome or Edge for best results.

Does my data get uploaded to a server?

Never. All HEIC decoding and AVIF encoding happens entirely in your browser using JavaScript and the Canvas API. Your photos never leave your device.

HEIC to AVIF Converter

Convert HEIC/HEIF images to next-gen AVIF format locally in your browser. Batch convert, preview thumbnails, download individually or as a ZIP. No uploads, no account required.

⚠ Your browser may not support AVIF encoding. For best results use Chrome 85+, Edge 85+, or Firefox 93+. Safari users may need to update to macOS Ventura or later.

🖼️

Drop HEIC/HEIF files here

or Browse Files · Multiple files supported

Download as ZIP ZIP named with timestamp · Individual download always available per file

What This Tool Does

Converts HEIC and HEIF images — typically from iPhones and iPads — to AVIF format entirely in your browser. AVIF is the next-generation web image format built on the AV1 codec: it delivers better compression than JPG and WebP with no quality loss at equivalent sizes. No server upload, no account, no file size limits imposed by a backend.

Who This Is For

Web developers optimizing iPhone photos for modern sites — AVIF loads faster than JPG or WebP
Content creators who shoot on iPhone and publish to platforms that support AVIF
Anyone who wants the smallest possible file size with excellent visual quality from HEIC originals
Developers testing AVIF support in browsers and CDNs

Example: Input: photo.heic (iPhone portrait, 4 MB) → Output: photo.avif (often 0.8–1.5 MB, visually identical)

💡 Need lossless output instead? Try HEIC to TIFF for pixel-perfect archiving. For broad compatibility, HEIC to JPG works everywhere. Once you have an AVIF, Image Compressor can optimize it further if needed.

Related Guides & Tutorials

Guide

HEIC to AVIF: Complete Conversion Guide

Why AVIF beats JPG and WebP for web delivery, and when to choose it over lossless TIFF.

Tutorial

How to Convert HEIC to AVIF: Step-by-Step

A hands-on walkthrough for converting HEIC images to AVIF in your browser — batch mode, ZIP download, and more.

Guide

HEIC to JPG Converter Guide

Why Apple uses HEIC and when to convert to universally compatible JPG.

Tool

⬇ Image Compressor

How It Works

Drop your HEIC filesDrag multiple .heic or .heif files onto the drop zone, or click Browse Files. Thumbnails generate immediately.

Click Convert to AVIFheic2any decodes each HEIC to pixel data; the browser's native Canvas API encodes it as AVIF in memory using hardware acceleration where available.

Download your AVIFsDownload files individually or check "Download as ZIP" for a single timestamped archive. App resets after export.

🔒 Privacy & Security

All decoding and encoding runs entirely in your browser. HEIC files are never sent to any server — they stay in your browser's memory from load to download. This is especially important for personal, family, or client photos.

You Might Also Need

HEIC to JPG → HEIC to TIFF → Image Compressor → Image Resizer → Image to WebP →

HEIC vs AVIF: Format Comparison

Property	HEIC	AVIF
Codec	HEVC (H.265)	AV1 (open standard)
File size (12MP)	~3–5 MB	~0.8–2 MB (at high quality)
Quality at same size	Very good	Better — more efficient codec
Transparency (alpha)	Yes	Yes
HDR / wide color	Yes	Yes
Browser support	Apple only natively	Chrome, Edge, Firefox, Safari 16.4+
Best for	Apple device storage	Web delivery, modern apps

Frequently Asked Questions

Does converting HEIC to AVIF reduce image quality?▼

AVIF uses lossy compression similar to HEIC, but the AV1 codec is more efficient. At high quality settings, the visual difference from your original HEIC is negligible, and the file size is typically 50–70% smaller than an equivalent JPG.

Which browsers support AVIF?▼

Chrome 85+, Edge 85+, and Firefox 93+ support AVIF encoding via the Canvas API used by this tool. Safari added AVIF decode support in version 16.4 (macOS Ventura / iOS 16.4), though canvas encoding may vary. Use Chrome or Edge for guaranteed results.

Can I convert multiple files at once?▼

Yes — drop up to 25 or more files at once. The tool processes them sequentially, shows per-file status badges, and lets you download all AVIFs individually or as a single timestamped ZIP.

What software opens AVIF files?▼

AVIF files open in Chrome, Edge, Firefox, Safari 16.4+, Windows 11 Photos app, macOS Ventura Preview, GIMP 2.10.22+, and recent versions of Photoshop with the AVIF codec plugin installed.

Is this tool free with no limits?▼

Yes — completely free with no file size limits, no per-conversion limits, and no account required. Processing happens in your browser so we never see your files.

What is the ZIP file named?▼

The ZIP is named dataconversioncenter_heic_to_avif_YYYYMMDDHHMM.zip using your local time — for example dataconversioncenter_heic_to_avif_202603051709.zip.