How do I convert GIF to AVIF?

Upload your GIF 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 GIF 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.

Will the AVIF keep the transparent background?

Yes. AVIF supports smooth, partial transparency, so transparent areas stay transparent.

Will the animation be kept?

いいえ。AVIFはアニメーションを保持できないため、アニメーションGIFは最初のフレームとして保存されます。

GIF or AVIF: which should I use?

Use GIF for short animations, stickers and flat-color graphics. 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.

GIFファイルとは？

GIFは元祖のWebアニメーション形式です。各フレームで使えるのは256色までなので、写真よりもシンプルなグラフィックや短いループに向いています。

Is the GIF 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 GIF to AVIF — Smallest High-Quality Images

Convert GIF to AVIF online for very small web images that keep transparency. No software to install. Preview one free or batch-convert with Premium.

Drop your GIF file or click to browse

Why convert GIF to AVIF?

AVIF files are usually smaller than GIF for the same picture, so pages load faster and uploads finish sooner.
AVIF is made for the smallest high-quality images for websites and apps.

What to expect when converting GIF to AVIF

AVIFはこのアニメーションを保持できないため、アニメーションGIFは最初のフレームとして保存されます。
AVIF uses lossy compression by default; raise the quality or switch on lossless in Settings for a closer copy.

GIFとAVIFの比較

機能	GIF	AVIF
氏名	Graphics Interchange Format	AV1 Image File Format
由来	Introduced by CompuServe in 1987	Released by the Alliance for Open Media in 2019
圧縮	可逆圧縮だが、256色まで	非可逆または可逆
透過	オン/オフのみ（透明色は1色）	Yes — smooth, partial transparency
アニメーション	はい	はい
色	フレームあたり最大256色	8, 10 or 12 bits per channel, including HDR
開けるアプリ	All browsers, email apps and messaging apps	Current Chrome, Edge, Firefox and Safari 16+; fewer editing apps
こんな方に最適	短いアニメーション、ステッカー、ベタ塗りのグラフィック	the smallest high-quality images for websites and apps
主な欠点	256色のみ、透過はオン/オフのみ	作成に時間がかかり、多くの編集アプリや古いデバイスでは開けない

In short: choose GIF for short animations, stickers and flat-color graphics; choose AVIF for the smallest high-quality images for websites and apps.

Frequently asked questions

How do I convert GIF to AVIF?: Upload your GIF 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 GIF 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.
Will the AVIF keep the transparent background?: Yes. AVIF supports smooth, partial transparency, so transparent areas stay transparent.
Will the animation be kept?: いいえ。AVIFはアニメーションを保持できないため、アニメーションGIFは最初のフレームとして保存されます。
GIF or AVIF: which should I use?: Use GIF for short animations, stickers and flat-color graphics. 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.
GIFファイルとは？: GIFは元祖のWebアニメーション形式です。各フレームで使えるのは256色までなので、写真よりもシンプルなグラフィックや短いループに向いています。
Is the GIF 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.

GIFからAVIFへでできること

始める前に、主な機能を確認してください。

Convert GIF files to AVIF online
Choose AVIF quality or switch to lossless
Switch to any other output format in Settings
Batch-convert many GIF 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

GIFからAVIFへ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: 透過を保存できないJPG、BMP、画像からPDFへの出力用：透明な部分を塗りつぶす色（既定は白）。