What BMP to TIFF conversion does

Convert a BMP image to TIFF directly in your browser. TIFF is the standard for print production, scanning, publishing, and archival master copies, where lossless fidelity matters more than file size.

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, since it stores pixel data without lossy compression.

Transparency and output quality

Output is uncompressed 8-bit RGBA, so an alpha channel from the source is preserved. This tool writes uncompressed TIFF (raw RGBA pixel data), so the file can be 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.
• Transparency is kept only when the browser decodes a real alpha channel from the source BMP; most BMP files have no transparency.
• 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, since it stores pixel data without lossy compression.

Does TIFF output keep transparency?

Yes. Output is uncompressed 8-bit RGBA, so an alpha channel from the source is preserved.

Why is the TIFF file so much larger than the source?

This tool writes uncompressed TIFF (raw RGBA pixel data) rather than a compressed variant, which is a deliberate tradeoff for fidelity in print, scanning, and archival workflows.

Does the source BMP actually have transparency?

Rarely. Most BMP files have no alpha channel at all. When the browser does decode real alpha data from a 32-bit source BMP, it is preserved in output formats that support transparency.

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.