Convert AVIF to WebP — Smaller Images for Faster Sites
Convert AVIF to WebP online for smaller web images that keep transparency. No software to install. Preview one free or batch-convert with Premium.
Drop your AVIF file or click to browse
Why convert AVIF to WebP?
- Transparent areas stay transparent: WebP supports smooth, partial transparency just like AVIF.
- WebP is made for websites, online stores and blogs that need fast-loading images.
What to expect when converting AVIF to WebP
- WebP uses lossy compression by default; raise the quality or switch on lossless in Settings for a closer copy.
- 元のAVIFファイルは変更されません。新しいWebPのコピーをダウンロードします。
AVIFとWebPの比較
| 機能 | AVIF | WebP |
|---|---|---|
| 氏名 | AV1 Image File Format | WebP |
| 由来 | Released by the Alliance for Open Media in 2019 | Released by Google in 2010 |
| 圧縮 | 非可逆または可逆 | 非可逆または可逆 |
| 透過 | Yes — smooth, partial transparency | Yes — smooth, partial transparency |
| アニメーション | はい | はい |
| 色 | 8, 10 or 12 bits per channel, including HDR | チャンネルあたり8ビット |
| 開けるアプリ | Current Chrome, Edge, Firefox and Safari 16+; fewer editing apps | All current browsers; some older desktop apps and upload forms reject it |
| こんな方に最適 | the smallest high-quality images for websites and apps | websites, online stores and blogs that need fast-loading images |
| 主な欠点 | 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 | 古いアプリや一部のアップロードフォームでは受け付けられない |
In short: choose AVIF for the smallest high-quality images for websites and apps; choose WebP for websites, online stores and blogs that need fast-loading images.
Frequently asked questions
- How do I convert AVIF to WebP?
- Upload your AVIF file above. It is converted to WebP 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 AVIF to WebP lose quality?
- WebP 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 WebP keep the transparent background?
- Yes. WebP supports smooth, partial transparency, so transparent areas stay transparent.
- AVIF or WebP: which should I use?
- Use AVIF for the smallest high-quality images for websites and apps. Use WebP for websites, online stores and blogs that need fast-loading images. Keep in mind the main drawback of WebP: older apps and some upload forms don't accept it.
- AVIFファイルとは？
- AVIF compresses still images with the AV1 video codec. It usually produces smaller files than JPG and WebP at the same visual quality and supports HDR and transparency.
- Is the AVIF to WebP 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.
AVIFからWebP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 AVIF files to WebP online
- Choose WebP quality or switch to lossless
- Switch to any other output format in Settings
- Batch-convert many AVIF files into one ZIP
- Preview the result before you download
設定リファレンス
5 設定
AVIFからWebP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）。
モード
- 単一ファイル / バッチドロップダウン
- 共有設定を使用して 1 つのファイルまたはバッチを処理します。バッチ結果は 1 つの ZIP としてダウンロードされます。オプション: 単一ファイル一括処理
無料で利用可能 · 登録不要 · 透かしなしアップロードは転送中に暗号化されます保持ポリシーに基づいて削除されました
AVIFからWebPへ の関連ツール
AVIFからWebPへ の後の一般的な次のステップのためのツール。
変換結果を一つずつ確認
すべての写真はスラッシュをそのまま通過し、反対側が完成して出てきます。
