100% Free No Upload Bulk Conversion

Bulk AVIF to HEIF Converter — Free, Unlimited

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

AVIF HEIF · ZIP

Bulk AVIF → HEIF Converter

Select files, convert, download ZIP — all locally

Drop AVIF files here or click to browse

Supports batch selection — convert hundreds of files

AVIF → HEIF ZIP

0 files

Converting 0 / 0

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

Why convert AVIF to HEIF?

If you work with AVIF regularly, you've probably hit compatibility walls. HEIF was built for exactly this gap – Apple devices — efficient storage. This conversion processes your files entirely in your browser using WebAssembly – no upload, no server, no privacy concerns. Perfect for sensitive or large batches. This kind of format decision tends to matter more as a project scales up.

JPEG compression introduces minor quality loss — set quality to 90%+ to minimize

Technical comparison: AVIF vs HEIF

Property	AVIF	HEIF
Full name	AV1 Image File Format	High Efficiency Image Format
Compression	Lossy / Lossless	Lossy
Color depth	12-bit HDR	10-bit HDR
Transparency	Yes	Yes
Web support	Yes	No
Developed by	Alliance for Open Media (2019)	MPEG Group (2015)
Max colors	68.7B	1.07B
MIME type	`image/avif`	`image/heif`
Category	Raster image	Raster image
Year gap	4 years apart in technical development
Best for	Next‑gen web images — superior compression	Apple devices — efficient storage

How to use — 3 simple steps

Select your AVIF files

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

Start the conversion

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

Download ZIP archive

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

Popular use cases for AVIF → HEIF

Etsy and Amazon sellers converting AVIF product shots to HEIF for listings

Interior designers converting AVIF renders to HEIF for client presentations

Fitness coaches converting AVIF progress photos to HEIF for their app

Recipe bloggers converting AVIF food photography to HEIF for faster pages

💡 Pro tips

Set quality to 85-92% for the best balance between file size and visual quality
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

The current version processes the batch in one continuous run; for very large batches, splitting into smaller groups is recommended.

Yes, you can drag a folder or multiple AVIF files directly onto the drop zone.

Yes, once the page and its WebAssembly modules are loaded, conversion works without an active internet connection.

HEIF is well suited for archival when its compression matches your quality needs — lossless HEIF is ideal for long-term storage.

Bulk AVIF to HEIF Converter — Free, Unlimited

Why convert AVIF to HEIF?

Technical comparison: AVIF vs HEIF

How to use — 3 simple steps

Popular use cases for AVIF → HEIF

💡 Pro tips

Frequently Asked Questions

Can I pause and resume a large AVIF to HEIF batch?

Does the tool support drag-and-drop for AVIF files?

Will converting AVIF to HEIF work offline after the page loads?

Can I trust HEIF for long-term archival of my AVIF images?

Other conversions from AVIF

Convert other formats to HEIF

Related conversions