Convert HEIC to AVIF

HEIC to AVIF converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

Drop any file here or click to browse

All file types supported

About formats

HEIC

HEIC (High Efficiency Image Container) is Apple's implementation of the HEIF standard, using the HEVC codec. It stores images at roughly half the file size of JPEG at comparable quality. HEIC is the default photo format on iOS 11+ and macOS High Sierra+, and supports multiple images and depth data within a single file.

Developer: Apple / MPEG
Initial release: 2017
Compression: Lossy
Color depth: up to 16-bit HDR
Transparency: Yes
Animation: Yes

Best for

Saving iPhone photos
High-quality mobile photography
Reducing photo storage on iOS
HDR image capture
Efficient photo archival on Apple devices

Pros

+Roughly half the size of JPEG at comparable quality
+Supports transparency and animation
+Stores multiple images and depth data
+Default iOS photo format

Cons

−Limited support on older Windows and non-Apple platforms
−Requires newer software to decode
−Less universally supported than JPG
−No universal web browser support historically

AVIF

AVIF (AV1 Image File Format) is a modern, royalty-free image format based on the AV1 video codec. It delivers dramatically better compression than JPEG and PNG — often halving file sizes — while supporting high dynamic range (HDR), 10+ bit color, and alpha transparency. AVIF is supported by Chrome, Firefox, and Android.

Developer: Alliance for Open Media
Initial release: 2019
Compression: Lossy or lossless
Color depth: up to 12-bit HDR
Transparency: Yes
Animation: Yes

Best for

Next-generation web image optimization
HDR photography on the web
Reducing image payload dramatically
Modern browser image delivery
High-efficiency image archival

Pros

+Often halves file sizes vs JPEG and PNG
+Supports HDR and 10+ bit color
+Alpha transparency and animation
+Royalty-free and open

Cons

−Slower to encode than JPG
−Limited support in older browsers and tools
−Less editing software support
−Hardware decoding still maturing

How to convert HEIC to AVIF

1
Select HEIC files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose avif — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your avif file right away.

HEIC vs AVIF

Property	HEIC	AVIF
Compression	Lossy	Lossy or lossless
Transparency	Yes	Yes
Animation	Yes	Yes
Color depth	up to 16-bit HDR	up to 12-bit HDR
Open format	No	Yes

When to use HEIC vs AVIF

HEIC

Saving iPhone photos
High-quality mobile photography
Reducing photo storage on iOS
HDR image capture
Efficient photo archival on Apple devices

AVIF

Next-generation web image optimization
HDR photography on the web
Reducing image payload dramatically
Modern browser image delivery
High-efficiency image archival

Use cases for HEIC → AVIF

Saving iPhone photos
High-quality mobile photography
Reducing photo storage on iOS
HDR image capture
Efficient photo archival on Apple devices
Next-generation web image optimization
HDR photography on the web
Reducing image payload dramatically
Modern browser image delivery
High-efficiency image archival

Frequently Asked Questions

Is converting HEIC to AVIF free?

Yes. This HEIC → AVIF converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert HEIC to AVIF?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my HEIC files uploaded to a server?

No. Files never leave your device. The entire HEIC → AVIF conversion runs locally in your browser, so your data stays private.

Can I convert multiple HEIC files at once?

Yes — batch conversion is supported. Add as many HEIC files as you like and convert them to AVIF in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting HEIC to AVIF reduce the quality?

Because both formats use lossy compression, the AVIF output will not bring back any quality that has already been lost in your HEIC file. Avoid repeated re-encoding to keep the best quality.

Will transparency be preserved when converting HEIC to AVIF?

Yes. Both HEIC and AVIF support alpha-channel transparency, so transparent areas of your file are kept unchanged in the AVIF output.

How will the file size change after converting HEIC to AVIF?

Both formats use comparable compression, so the AVIF output will be similar in size to your HEIC file — typically within 10–20% of each other.

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FREE

100% Free

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SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

Convert HEIC to AVIF Quality Rating

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