Image guides
How to Convert BMP to TIFF in Your Browser
Converting a BMP image to TIFF produces an uncompressed 8-bit RGBA TIFF suited to print production, scanning, and archival master copies. This guide covers the steps and what to know about transparency and file size.
Ready to try the tool this guide describes?
Step-by-step conversion
- Open /tools/bmp-to-tiff.
- Choose a BMP file — the content is validated before conversion, not just the filename or extension.
- Select Convert & download.
- Save the .tiff file from your browser downloads.
Transparency and file size
Output is uncompressed 8-bit RGBA, so an alpha channel from the source is preserved. Because the file is uncompressed, it can be several times larger than the source.
Source-specific behavior
Transparency is kept only when the browser decodes a real alpha channel from the source BMP; most BMP files have no transparency at all.
Privacy
Conversion runs locally in your browser. The file is not uploaded to Looty Tools servers for this workflow.
Convert BMP to TIFF FAQ
- Why would I need TIFF instead of BMP?
- Print shops, scanning pipelines, and archival workflows often specifically require TIFF as the master format.
- Does the source BMP actually have transparency?
- Rarely. Most BMP files have no alpha channel. When the browser does decode real alpha data from a 32-bit source BMP, it is preserved in output formats that support transparency.
- Does TIFF output keep transparency?
- Output is uncompressed 8-bit RGBA, so an alpha channel from the source is preserved. Because the file is uncompressed, it can be several times larger than the source.
- 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.
Related guides
- BMP vs JPGCompare BMP and JPG for file size, compression, and compatibility, and see when converting BMP to JPG is the better choice.
- Convert Images Without UploadingLearn what browser-local image conversion means on Looty Tools, what stays on your device, and how Image Converter avoids a conversion upload.