BMP to TIFF Converter

What BMP to TIFF conversion does

Convert a BMP image to TIFF directly in your browser. Both formats store pixel data without lossy compression, so this move is about switching legacy Windows bitmap into the format print production, scanning, and archival pipelines expect — not about shrinking the file.

How to convert BMP to TIFF

1. Choose a BMP file.
2. Select Convert & download.
3. Save the .tiff file from your browser downloads.

Why use this conversion

Print shops, scanning pipelines, and archival workflows often specifically require TIFF as the master format rather than an old BMP, since TIFF is the container those tools are built around even though the underlying pixel data is just as uncompressed.

Transparency and output quality

Output is uncompressed 8-bit RGBA. If the source BMP was saved with a V4/V5 header carrying real alpha data, that alpha channel is preserved; older BITMAPINFOHEADER-only BMPs have no alpha to carry over. Unlike most conversions off an uncompressed BMP, this one is not a size win: this tool writes uncompressed TIFF (raw RGBA pixel data), and RGBA is 4 bytes per pixel versus a typical 3-byte-per-pixel BMP, so the TIFF can end up several times larger than the source.

Privacy and local processing

• Processing occurs locally in the browser.
• Files are not uploaded to Looty Tools for conversion.
• Converted files remain on your device.

Limits and known issues

• Input: BMP (.bmp) only, up to 25.0 MB and 8,192 px per side.
• This is a standard baseline uncompressed TIFF. Software expecting a specific compressed TIFF variant (LZW, ZIP) should still be able to open it, since compression is optional in the TIFF spec.
• BMP carries no EXIF-style metadata to bring over, so the TIFF's value here is the archival-ready container format, not preserved shot data.
• Metadata is not preserved in the downloaded file.

Related tools

• BMP to AnyConvert BMP images into multiple common output formats.
• BMP to GIFConvert BMP images to a static GIF.
• BMP to ICOConvert BMP images to Windows ICO icons.

BMP to TIFF FAQ

Why convert BMP to TIFF?

Print shops, scanning pipelines, and archival workflows often specifically require TIFF as the master format rather than an old Windows BMP, since TIFF is the container those tools are built around — even though both formats store pixel data without lossy compression.

Does TIFF output keep transparency?

Yes, if the source has any. Output is uncompressed 8-bit RGBA, so an alpha channel decoded from a V4/V5-header source BMP is preserved; most BMP files use the older header with no alpha to carry over.

Why isn't the TIFF file smaller than the BMP?

Unlike most BMP conversions, this one isn't a size win. This tool writes uncompressed TIFF as raw RGBA pixel data — 4 bytes per pixel versus roughly 3 for the source BMP — so the TIFF can end up several times larger, a deliberate tradeoff for fidelity in print, scanning, and archival workflows.

Does the source BMP actually carry an alpha channel?

It depends on the file. Older BITMAPINFOHEADER-based BMPs have no alpha at all, while newer V4/V5-header BMPs can carry real per-pixel alpha — but not every BMP-writing tool includes it even when the header supports it. The decoder reads whatever the source actually has.

Are my files uploaded?

No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.

What is validated before conversion?

The file must actually be a BMP — the tool checks the "BM" header bytes, not just the filename or extension, before decoding.