ICO to PNG Converter - Convert ICO to PNG Online Free
Turn favicon and icon files into standard PNG images directly in your browser, with transparency preserved. Batch conversion, no uploads.
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Supports ICO
What ICO to PNG Conversion Does
This tool hands your .ico file to the browser's own image decoder, draws the decoded result onto a canvas, and re-encodes those pixels as a PNG. Nothing is uploaded — the entire cycle runs on your device. The part worth understanding before you start is that .ico is not really a single image. It is a container format, and a typical favicon.ico packs several separate bitmaps inside one file: 16×16, 32×32, 48×48, sometimes 256×256, so that an operating system or browser can pick whichever size fits the slot it needs to fill. A canvas decode does not work that way. The browser selects exactly one of those bitmaps — in practice the largest one it finds — and that single image is what gets drawn and re-encoded. So you get one PNG out of the conversion, not a set of PNGs covering every size the icon contained. If you specifically need the 16×16 variant that was sitting inside the file, this tool cannot pull it out separately; a dedicated icon extractor is the right job for that. Everything else about the conversion is straightforward. PNG is lossless, so the pixels the decoder produced come back out untouched, which is why there is no quality slider anywhere on this page. Transparency survives intact: nearly every icon has an alpha channel, PNG supports alpha, and the two line up exactly, so a transparent icon background stays transparent instead of turning into a white box. Nothing is upscaled either — the PNG comes out at whatever resolution the source bitmap actually was.
Why You'd Convert ICO to PNG
Usually because you have an icon in a format most software refuses to open, and you want a normal image file instead.
How to Convert ICO to PNG
There is nothing to configure — PNG is lossless, so the only real decision is which files to run.
Add one .ico file or drop in several — the whole batch runs through the same pass
Apply the conversion; there's no quality slider, since PNG encoding has nothing to trade away
Check the preview and note the output dimensions — that's the one bitmap the decoder picked from the container
Download the PNG, or grab the whole batch as a single ZIP archive
Frequently Asked Questions
その他の画像ツール
画像編集のニーズに応える他の強力なツールをご覧ください
画像圧縮
サイズ縮小
サイズ変更
寸法変更
画像切り抜き
領域を切り取る
フォトエディター
写真を編集
画像回転
画像を回転
画像反転
水平/垂直反転
透かしを追加
透かし
枠線追加
画像枠線を追加
角丸
角丸を追加
フィルター
明るさ/コントラスト
顔をぼかす
顔を隠す
モザイク
領域をぼかす
背景削除
背景を削除
画質向上
AI拡大
テキスト追加
画像にテキストを追加
コラージュ
複数の画像を結合
HTMLから画像
Webを画像に
GIF からシーケンス
フレーム抽出
画像の余白を削除
空白の縁を削除
画像を一括リネーム
ファイル名を安全に一括変更
Circle Crop
Crop images into circles
Black & White
Convert images to grayscale
Split Image
Cut an image into a grid
Merge Images
Combine images into one
Change DPI
Set image DPI metadata
Image to Base64
Encode images as Base64