Convert HEIC to AVIF
Convert HEIC images to AVIF quickly with the same PurePDF workspace flow you already use.
Last updated
Drop HEIC files here, then continue to the universal conversion workspace.
Runs in your browser · file never uploaded
This tool runs entirely in your browser using WebAssembly. Your file is never uploaded — it stays on your device from start to finish.
Full detail in our privacy policy.
At a glance
0 KB
Uploaded to any server
90+
Format pairs supported
Free
No signup, no watermarks
Start in 3 easy steps
A quick visual tour of the private PurePDF workflow.
Upload HEIC
Add one or more HEIC files from your device.
AVIF preselected
We open the universal workspace with AVIF selected automatically.
Convert & download
Run conversion and get files from the download hub.
Built for everyday PDF work
Fast, clear, and built around local browser processing.
Batch conversion
Convert one HEIC file or dozens in a single run — no daily task limits.
Quality controls
Adjust output quality and settings before converting, so files come out exactly how you need them.
Auto-deleted files
Files are converted over encrypted HTTPS and deleted from our servers within minutes.
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HEIC vs AVIF: what changes when you convert
HEIC (High Efficiency Image Container) was introduced in 2017 by the MPEG group; adopted by Apple in iOS 11 and is best known for iphone camera photos (half the size of jpg at the same quality). AVIF (AV1 Image File Format), created by the Alliance for Open Media (Google, Netflix, Mozilla), is the better choice when you need maximum web compression — typically 50% smaller than jpg.
Why convert? AVIF files are typically much smaller than HEIC — expect a noticeable reduction in file size. HEIC photos from an iPhone routinely fail to open on Windows PCs and Android phones. Converting to AVIF solves that instantly.
Upload one file or a whole batch — conversion happens over a secure HTTPS connection and finished files are automatically deleted from our servers within minutes. Most desktop image editors and older devices cannot open AVIF yet.
| Attribute | HEIC | AVIF |
|---|---|---|
| Full name | High Efficiency Image Container | AV1 Image File Format |
| Introduced | 2017 | 2019 |
| File extension | .heic / .heif | .avif |
| Compression | Lossy | Lossy or lossless |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Typical file size | Very small | Very small |
| Compatibility | Safari only — Chrome, Firefox, and most Windows apps cannot open it | Chrome, Firefox, Safari 16+, Edge — but little support outside browsers |
| Best for | iPhone camera photos (half the size of JPG at the same quality) | Maximum web compression — typically 50% smaller than JPG |
When to convert HEIC to AVIF
- Open iPhone photos on a Windows PC or Android phone that cannot read HEIC
- Speed up your website — AVIF cuts image weight without visible quality loss
- Standardize mixed image libraries on AVIF for consistent tooling
Frequently
Asked
Questions
Quick answers about this PurePDF workflow.
How do I convert HEIC to AVIF?
Upload your HEIC files on this page. PurePDF opens the conversion workspace with AVIF preselected — click Convert and collect the finished files from the download hub.
Will converting HEIC to AVIF reduce quality?
No. AVIF supports lossless compression, so every pixel of your HEIC image is preserved exactly.
Is transparency preserved when converting HEIC to AVIF?
Yes. Both HEIC and AVIF support alpha transparency, so transparent backgrounds survive the conversion intact.
How much smaller will my file be as AVIF?
It depends on the image content, but AVIF typically produces significantly smaller files than HEIC. Photographic images see the biggest savings.
Is the HEIC to AVIF converter free?
Yes — free with no signup, no watermarks, and no daily task limit.
Are my files private?
Files are transferred over encrypted HTTPS, processed, and automatically deleted from our servers within minutes. Nothing is stored, shared, or used for anything else.
Can I batch convert multiple HEIC files?
Yes. Upload as many HEIC files as you need and convert them to AVIF in one run.