Favicon Generator
🔒ブラウザ内処理
Generate a complete favicon set (ICO / PNG / apple-touch-icon / site.webmanifest) from a single image. Runs entirely in your browser.
ファイルをドラッグ&ドロップ
またはクリックしてファイルを選択
Supported: PNG / JPG / WebP / SVG — Square 512×512+ recommended / Max 10MB
よくある質問
Is my source image uploaded?
No. Everything runs in your browser. Verify with DevTools → Network tab.
What is the ideal source image?
Square, 512×512 or larger PNG or SVG with transparent or solid background. Non-square inputs are centered with transparent margin.
Is the ICO multi-size?
Yes — 16 / 32 / 48 px combined into one .ico file.
Can I edit site.webmanifest?
Yes. The generated JSON is initialized from your input but you can edit it freely afterwards.
How do I add the favicon to my site?
Paste the contents of snippet.html into your <head> and put each file at the site root (/).