100% Free No Upload Bulk Conversion

Bulk HEIC to AVIF Converter — Free, No Upload

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
0 files
Converting 0 / 0
✓ Conversion completed! All files converted successfully. Click Download ZIP to save them.

Why convert HEIC to AVIF?

convert.dynamic_reason.template_12 convert.dynamic_reason_closing.closing_9

Technical comparison: HEIC vs AVIF

PropertyHEICAVIF
Full nameHigh Efficiency Image ContainerAV1 Image File Format
Compression Lossy Lossy / Lossless
Color depth10-bit HDR12-bit HDR
Transparency Yes Yes
Web support No Yes
Developed byApple / MPEG (2017)Alliance for Open Media (2019)
Max colors1.07B68.7B
MIME typeimage/heicimage/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

1
Select your HEIC files
Drag & drop or click to choose multiple HEIC images. No file size restrictions.
2
Start the conversion
Click "Convert to :to" — your files are processed locally using WebAssembly. No upload, no waiting.
3
Download ZIP archive
All converted AVIF files are bundled into a single ZIP. One click, everything saved.

Popular use cases for HEIC → AVIF

convert.usecases_groups.group_12.0

convert.usecases_groups.group_12.1

convert.usecases_groups.group_12.2

convert.usecases_groups.group_12.3

💡 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

convert.faq_groups.group_4.0.a
convert.faq_groups.group_4.1.a
convert.faq_groups.group_4.2.a
convert.faq_groups.group_4.3.a
Applicazione offline!