What happens when you convert TIFF to BMP
- The image is decoded and written as a 24-bit uncompressed bitmap.
- A small TIFF decoder is fetched when you press Convert. For multi-page TIFF files, the first page is converted.
How to convert TIFF to BMP online
- Press "Choose TIFF files" and select one or more files, or drag them onto the box. You can add files of any size your device can hold in memory.
- Adjust the settings if you need to. The output is lossless, so there is no quality setting to worry about.
- Press "Convert to BMP". Images convert in a second or two each.
- Save each BMP with its download button. Close the tab and every trace of the files is gone from memory.
Why convert TIFF to BMP?
TIFF files usually come from print production, scanning, archiving and medical imaging. People convert them to BMP because BMP is read by almost every Windows program, embedded display and old piece of software.
In short, TIFF is good at what it was made for, and BMP is the more practical choice when the file has to open, upload or print somewhere else. Safari shows TIFF; Chrome, Edge and Firefox download it instead of displaying it, while BMP opens in browsers and every Windows image tool.
How to convert TIFF to BMP on Windows, Mac, iPhone and Android
On Windows
Open this page in Chrome, Edge or Firefox, drag your TIFF files in from File Explorer, and press Convert. Each BMP is saved to your Downloads folder. Paint can also re-save an image as BMP with Save as, provided Windows can open the TIFF in the first place.
On a Mac
Safari, Chrome and Firefox all work. Drag the TIFF files from Finder onto the drop zone and the BMP files land in Downloads.
On iPhone and iPad
Open the page in Safari and tap Choose TIFF files. You can pick from Photos or from the Files app. The converted BMP appears in Files, in the Downloads folder; to put it in your photo library, open it there, tap Share and choose Save Image.
On Android
Open the page in Chrome, tap Choose TIFF files and pick them from Files or your gallery. The BMP is saved to the Download folder, where any file manager can find it.
Best settings for TIFF to BMP
A 24-bit BMP stores every pixel uncompressed, three bytes each, so size is simply width times height times three: a 12 megapixel photo becomes about 36 MB. Use the Maximum width setting if the program that needs the BMP does not need full resolution.
TIFF vs BMP: the differences
| TIFF | BMP | |
|---|---|---|
| Full name | Tagged Image File Format | Bitmap image |
| Type | image | image |
| Created by | Aldus Corporation | Microsoft |
| First released | 1986 | 1990 |
| Compression | Lossy or lossless | Lossless |
| Transparency | Yes | Yes |
| Animation | No | No |
| Vector or raster | Raster | Raster |
| Colour | up to 32 bits per channel, including CMYK | up to 32-bit colour |
| In a browser | Safari shows it; Chrome, Edge and Firefox download it instead of displaying it | opens in browsers and every Windows image tool |
| Common uses | print production, scanning, archiving and medical imaging | Windows software, embedded displays and legacy tools |
| MIME type | image/tiff | image/bmp |
About TIFF and BMP files
What is a TIFF file?
TIFF is the format printers and archives trust because it can store uncompressed or losslessly compressed pixels, CMYK colour and several pages in one file. It is also why a single scan can run to 100 MB.
What is a BMP file?
BMP usually stores pixels with no compression at all, so a 12 megapixel photo is about 36 MB. That size is the price of being readable by almost any program ever written for Windows.
TIFF to BMP not working? Common problems
- Colours look slightly different. Browsers convert images to the standard sRGB colour space when they decode them, so wide-gamut and CMYK images can shift a little.
- A phone photo comes out upright even though it looked sideways elsewhere. That is correct: the rotation stored in the photo is applied during conversion, so the BMP is always the right way up.
- The file is bigger than expected. The BMP is usually larger, because it stores every pixel without compression losses, while the TIFF was compressed lossily.
Convert TIFF to BMP from the command line
If you work in a terminal, ImageMagick converts TIFF to BMP in one line:
magick input.tiff output.bmpTo convert every TIFF in a folder at once, use magick mogrify -format bmp *.tiff. The converter on this page does the same job without installing anything.
TIFF to BMP converter FAQ
Will I lose quality converting TIFF to BMP?
No further quality is lost, because BMP is written losslessly. Detail the TIFF compression already removed does not come back.
Why is the BMP a different size from the TIFF?
The BMP is usually larger, because it stores every pixel without compression losses, while the TIFF was compressed lossily.
Are my TIFF files uploaded anywhere?
No. The conversion runs inside this browser tab using your browser's own image decoder, so your files stay on your device. You can disconnect from the internet after the page has loaded and it still works.
Can I convert several TIFF files to BMP at once?
Yes. Select or drop as many files as you like; they are converted one after another and each gets its own download button.
How do I open a BMP file?
BMP opens in browsers and every Windows image tool. BMP is common for Windows software, embedded displays and legacy tools.
Is this TIFF to BMP converter free?
Yes. There is no sign-up, no watermark and no limit on how many files you convert. The site is paid for by advertising, and because conversions run on your device there is no server cost per file.
Can I convert TIFF to BMP on my phone?
Yes. The converter works in Safari on iPhone and iPad and in Chrome on Android. Converted files are saved to the Downloads folder.