Convert HEIC to AVIF Online
Convert HEIC to AVIF in seconds. HEIC is Apple's default iPhone photo format since iOS 11; AVIF's strength is this: noticeably smaller files than PNG or JPG at comparable quality. No software installation required — everything runs in your browser.
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Why Convert HEIC to AVIF?
HEIC is typically produced by or used with Apple's Photos app and iOS/macOS, for space-efficient photo storage on Apple devices. AVIF is expected by modern browsers (Chrome, Firefox, Edge, Safari) instead, for high-efficiency images for fast-loading modern websites — converting bridges that gap.
HEIC works well for space-efficient photo storage on Apple devices, but has a real limitation: many Windows programs and non-Apple platforms can't open it directly. Converting trades that for this: noticeably smaller files than PNG or JPG at comparable quality.
Our engine reads a file built around space-efficient photo storage on Apple devices and rebuilds it aiming to preserve this: noticeably smaller files than PNG or JPG at comparable quality — rather than producing a generic, lowest-common-denominator result.
How to Convert HEIC to AVIF
- Upload your HEIC file.
- MiConvert converts it to AVIF, aiming to preserve what makes AVIF useful: noticeably smaller files than PNG or JPG at comparable quality.
- Download the converted AVIF file.
- Use it directly with modern browsers (Chrome, Firefox, Edge, Safari).
Key Features of MiConvert HEIC to AVIF
- Understands that HEIC is Apple's default iPhone photo format since iOS 11 and AVIF is a modern AV1-based compressed image format, rather than treating the conversion as a blind format swap
- Produces output ready for modern browsers (Chrome, Firefox, Edge, Safari), picking up right where Apple's Photos app and iOS/macOS left off
- Purpose-built for the shift from space-efficient photo storage on Apple devices to high-efficiency images for fast-loading modern websites, not a generic pass-through
- Converts HEIC into AVIF, aiming to preserve what matters most: noticeably smaller files than PNG or JPG at comparable quality
- Free for files up to 50MB, 100MB for registered accounts
Video Tutorial
Watch this step-by-step tutorial to learn how to convert HEIC files to AVIF format online for free using MiConvert.com. No software installation required.
Frequent Questions
Do I need any special settings before uploading my HEIC file?
No special setup is required — upload the file as-is. HEIC files meant for space-efficient photo storage on Apple devices convert most predictably; unusually exported or non-standard files are the most common reason a specific one might need extra attention.
Is AVIF objectively better than HEIC?
Not objectively — AVIF is better specifically for high-efficiency images for fast-loading modern websites. For space-efficient photo storage on Apple devices, HEIC is still the right tool; that's exactly why both formats exist.
What's the real difference between HEIC and AVIF?
HEIC is built around space-efficient photo storage on Apple devices (Apple's default iPhone photo format since iOS 11). AVIF is built around high-efficiency images for fast-loading modern websites instead (a modern AV1-based compressed image format) — different enough that this is a genuine format conversion, not just a rename.
Will I lose anything converting HEIC to AVIF?
Converting to AVIF means adapting to a real constraint: unsupported by older browsers and some legacy software. Anything HEIC carries — built as it is for space-efficient photo storage on Apple devices — that has no equivalent there won't make the trip, but the core content converts faithfully.
Can I convert the file back from AVIF to HEIC afterward?
Only what AVIF actually carries can come back — anything specific to HEIC's role in space-efficient photo storage on Apple devices that didn't survive the original conversion won't reappear.