How do I convert TIFF to BMP?

Upload your TIFF 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 TIFF 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。

TIFFファイルとは？

TIFF is the workhorse of print and archiving. It keeps every pixel without loss and is accepted by print shops, publishers and document-management systems.

Is the TIFF 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.

Convert TIFF to BMP — Uncompressed Bitmaps

Convert TIFF 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 TIFF file or click to browse

Why convert TIFF 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 TIFF 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 TIFF for the same picture.
複数ページのTIFFは最初のページのみが変換され、CMYKの印刷色は標準のRGBになります。

TIFFとBMPの比較

機能	TIFF	BMP
氏名	Tagged Image File Format	Windowsビットマップ
由来	Created by Aldus in 1986, now maintained by Adobe	Created by Microsoft for Windows
圧縮	Lossless (LZW) or uncompressed	非圧縮
透過	Yes — smooth, partial transparency	No (in the 24-bit BMPs most apps read)
アニメーション	いいえ	いいえ
色	Up to 16 bits per channel, RGB or CMYK	1,670万色（24ビット）
開けるアプリ	写真編集ソフト、印刷・スキャン用ソフト。ほとんどのブラウザでは表示されない	Windows and macOS apps, older software and browsers
こんな方に最適	print production, scanning and long-term archiving	older Windows programs, embedded devices and tools that need raw pixels
主な欠点	Webブラウザでは表示されない非常に大きなファイル	very large files and no transparency

In short: choose TIFF for print production, scanning and long-term archiving; choose BMP for older Windows programs, embedded devices and tools that need raw pixels.

Frequently asked questions

How do I convert TIFF to BMP?: Upload your TIFF 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 TIFF 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。
TIFF or BMP: which should I use?: Use TIFF for print production, scanning and long-term archiving. 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.
TIFFファイルとは？: TIFF is the workhorse of print and archiving. It keeps every pixel without loss and is accepted by print shops, publishers and document-management systems.
Is the TIFF 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.

TIFF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 TIFF 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 TIFF files into one ZIP
Preview the result before you download

このツールを使用する

設定リファレンス

TIFF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）。