画像をICOへ
画像をICOに変換 — 無料PNG/JPGからFavicon
あらゆる画像からウェブサイトfaviconを作成。ブラウザ内で即座にPNGやJPGをICO形式に変換 — アップロード不要、登録不要。ウェブサイトfaviconの生成に最適。
Why use this image to ico tool?
Convert PNG/JPG/WebP to ICO favicon format
Perfect for website favicons and app icons
Instant browser-based conversion
100% local processing — fully private
Free, no watermark, no signup
Frequently Asked Questions
How do I convert an image to ICO?
Drop your PNG or JPG onto the converter or click to browse. It is converted to ICO instantly in your browser, then download the favicon file.
What size should a favicon be?
Standard favicon size is 16x16 or 32x32 pixels, but modern browsers also use larger sizes. For best results, start with a square image (e.g. 256x256) and the ICO will cover multiple sizes.
Is image to ICO conversion free?
Yes, completely free with no watermark or signup. All processing happens locally in your browser.
Which formats can I convert to ICO?
You can convert PNG, JPG, WebP and BMP to ICO. PNG is recommended because it supports transparency.