100% Free No Upload Bulk Conversion

Bulk HEIC to AVIF Converter — Free, Unlimited

Convert multiple HEIC files to AVIF instantly — all in your browser. No file limits, no watermarks, and completely private.

HEIC AVIF · ZIP

Bulk HEIC → AVIF Converter

Select files, convert, download ZIP — all locally

Drop HEIC files here or click to browse

Supports batch selection — convert hundreds of files

HEIC → AVIF ZIP

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✓ Conversion completed! All files converted successfully. Click Download ZIP to save them.

Why convert HEIC to AVIF?

HEIC and AVIF solve different problems. If yours matches Next-gen web images — superior compression, the conversion pays off immediately. This conversion processes your files entirely in your browser using WebAssembly – no upload, no server, no privacy concerns. Perfect for sensitive or large batches. For most practical purposes, AVIF simply removes a recurring headache.

Technical comparison: HEIC vs AVIF

Property	HEIC	AVIF
Full name	High Efficiency Image Container	AV1 Image File Format
Compression	Lossy	Lossy / Lossless
Color depth	10-bit HDR	12-bit HDR
Transparency	Yes	Yes
Web support	No	Yes
Developed by	Apple / MPEG (2017)	Alliance for Open Media (2019)
Max colors	1.07B	68.7B
MIME type	`image/heic`	`image/avif`
Category	Raster image	Raster image
Year gap	2 years apart in technical development
Best for	iPhone photos — efficient storage	Next‑gen web images — superior compression

How to use — 3 simple steps

Select your HEIC files

Drag & drop or click to choose multiple HEIC images. No file size restrictions.

Start the conversion

Click "Convert to :to" — your files are processed locally using WebAssembly. No upload, no waiting.

Download ZIP archive

All converted AVIF files are bundled into a single ZIP. One click, everything saved.

Popular use cases for HEIC → AVIF

Travel bloggers converting HEIC photos to AVIF to speed up their site

App store submissions requiring AVIF instead of the original HEIC screenshots

Legal teams converting scanned HEIC documents to AVIF for records

HR departments converting HEIC ID photos to AVIF for employee systems

💡 Pro tips

Use WebP/AVIF for web — they load 30-50% faster than JPEG/PNG
Use the ZIP download to get all converted files in a single click
All processing is private — files are never uploaded to any server

Frequently Asked Questions

AVIF is better suited for Next-gen web images — superior compression. Keeping HEIC only makes sense if you need its specific strengths.

No. Files are processed independently and the ZIP keeps each file's original name, just with the new AVIF extension.

Yes, closing or refreshing the tab stops the process immediately. No partial files are uploaded anywhere since everything stays local.

No daily limit. You can run the bulk converter as many times as you need, for free.

Bulk HEIC to AVIF Converter — Free, Unlimited

Why convert HEIC to AVIF?

Technical comparison: HEIC vs AVIF

How to use — 3 simple steps

Popular use cases for HEIC → AVIF

💡 Pro tips

Frequently Asked Questions

Why should I convert HEIC to AVIF instead of keeping the original?

Does the order of my HEIC files matter during bulk conversion?

Can I cancel a bulk conversion halfway through?

Is there a daily limit on how many HEIC files I can convert?

Convert other formats to AVIF

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