PNGからBMPへの結果プレビュー

Convert PNG to BMP — Uncompressed Bitmaps

Convert PNG to BMP online for an uncompressed bitmap that older apps can read. No software to install. Preview one free or batch-convert with Premium.

Drop your PNG file or click to browse

Why convert PNG to BMP?

  • BMP is made for older Windows programs, embedded devices and tools that need raw pixels.
  • BMP needs no decoding, so very simple or older software can display it.

What to expect when converting PNG to BMP

  • BMPは透過を保存できないため、透明な部分は「設定」で選んだ背景色(既定は白)で塗りつぶされます。
  • Expect a bigger file: BMP usually takes more space than PNG for the same picture.

PNGとBMPの比較

機能PNGBMP
氏名Portable Network GraphicsWindowsビットマップ
由来Published as a W3C standard in 1996Created by Microsoft for Windows
圧縮ロスレス非圧縮
透過Yes — smooth, partial transparencyNo (in the 24-bit BMPs most apps read)
アニメーションいいえいいえ
色チャンネルあたり最大16ビット1,670万色(24ビット)
開けるアプリAll browsers, phones, computers and image editorsWindows and macOS apps, older software and browsers
こんな方に最適screenshots, logos, text graphics and cut-outsolder Windows programs, embedded devices and tools that need raw pixels
主な欠点large files for photographsvery large files and no transparency

In short: choose PNG for screenshots, logos, text graphics and cut-outs; choose BMP for older Windows programs, embedded devices and tools that need raw pixels.

Frequently asked questions

How do I convert PNG to BMP?
Upload your PNG file above. It is converted to BMP 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 PNG to BMP lose quality?
No. Both formats are lossless, so every pixel is kept exactly.
Will the BMP keep the transparent background?
いいえ。BMPは透過を保存できないため、透明な部分は「設定」で選んだ背景色(既定は白)で塗りつぶされます。
PNG or BMP: which should I use?
Use PNG for screenshots, logos, text graphics and cut-outs. Use BMP for older Windows programs, embedded devices and tools that need raw pixels. Keep in mind the main drawback of BMP: very large files and no transparency.
PNGファイルとは?
PNG stores every pixel exactly and supports smooth transparency, which makes it the go-to format for screenshots, logos and graphics, at the cost of large files for photos.
Is the PNG to BMP 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.

PNGからBMP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 PNG files to BMP online
  • 透明な部分を好きな背景色で塗りつぶします
  • Switch to any other output format in Settings
  • Batch-convert many PNG files into one ZIP
  • Preview the result before you download

設定リファレンス

PNGからBMP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

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。