How do I convert HEIC to AVIF?

Upload your HEIC file above. It is converted to AVIF automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.

Does converting HEIC to AVIF lose quality?

AVIF is lossy by default, so some fine detail is discarded to make the file smaller. Raise the quality or switch on lossless in Settings for a closer copy.

HEIC or AVIF: which should I use?

Use HEIC for saving storage space on iPhones and iPads. Use AVIF for the smallest high-quality images for websites and apps. Keep in mind the main drawback of AVIF: it is slow to create and many editing apps and older devices can’t open it.

HEIC is how iPhones and iPads save photos by default. It needs up to half the space of a JPG at similar quality, but many Windows PCs, Android apps and websites still can’t open it.

Is the HEIC to AVIF converter free?

Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

Convert HEIC to AVIF — Smallest High-Quality Images

Convert HEIC to AVIF online for very small, high-quality web images. No software to install. Preview one free or batch-convert with Premium.

Drop your HEIC file or click to browse

Why convert HEIC to AVIF?

AVIF is supported far more widely than HEIC, so the file is easier to open, share and upload.
AVIF is made for the smallest high-quality images for websites and apps.

What to expect when converting HEIC to AVIF

AVIF uses lossy compression by default; raise the quality or switch on lossless in Settings for a closer copy.
High-dynamic-range and wide-colour detail is converted to standard 8-bit colour.

HEIC vs AVIF

機能	HEIC	AVIF
氏名	High Efficiency Image Container	AV1 Image File Format
Origin	Apple’s default photo format since iOS 11 (2017)	Released by the Alliance for Open Media in 2019
圧縮	Lossy (HEVC)	Lossy or lossless
Transparency	Not in iPhone photos	Yes — smooth, partial transparency
アニメーション	いいえ	はい
色	8 or 10 bits per channel, wide colour	8, 10 or 12 bits per channel, including HDR
Where it opens	Apple devices; many Windows PCs, Android apps and websites need extra software	Current Chrome, Edge, Firefox and Safari 16+; fewer editing apps
こんな方に最適	saving storage space on iPhones and iPads	the smallest high-quality images for websites and apps
Main drawback	limited support outside Apple devices	it is slow to create and many editing apps and older devices can’t open it

In short: choose HEIC for saving storage space on iPhones and iPads; choose AVIF for the smallest high-quality images for websites and apps.

Frequently asked questions

How do I convert HEIC to AVIF?: Upload your HEIC file above. It is converted to AVIF automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.
Does converting HEIC to AVIF lose quality?: AVIF is lossy by default, so some fine detail is discarded to make the file smaller. Raise the quality or switch on lossless in Settings for a closer copy.
HEIC or AVIF: which should I use?: Use HEIC for saving storage space on iPhones and iPads. Use AVIF for the smallest high-quality images for websites and apps. Keep in mind the main drawback of AVIF: it is slow to create and many editing apps and older devices can’t open it.
What is a HEIC file?: HEIC is how iPhones and iPads save photos by default. It needs up to half the space of a JPG at similar quality, but many Windows PCs, Android apps and websites still can’t open it.
Is the HEIC to AVIF converter free?: Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

HEIC to AVIF でできること

始める前に、主な機能を確認してください。

Convert HEIC files to AVIF online
Choose AVIF quality or switch to lossless
Switch to any other output format in Settings
Batch-convert many HEIC files into one ZIP
Preview the result before you download

このツールを使用する

設定リファレンス

HEIC to AVIF で使用可能なコントロール。

設定

出力形式ドロップダウン: Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.オプション: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
品質スライダーレンジ: 20–100 · デフォルト: 90: For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
ロスレスモードオン/オフ: For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
背景の塗りつぶしカラーピッカー: For JPG, BMP and image-to-PDF output, which can’t store transparency: the colour that fills transparent areas (white by default).