BMP to TIFF Converter
Convert uncompressed BMPs to TIFF with lossless compression: exactly the same pixels, usually a fraction of the size, plus DPI metadata and multi-page output.
BMP to TIFF Converter
🔒 Processed on your device with the browser's own image engine — nothing is uploaded, and re-encoding strips EXIF metadata such as GPS location.
Drop files on the left — or tap a sample above.
- BMPUsually none (RLE4/RLE8 optional) · 1, 4, 8, 16, 24 or 32 bits per pixel · alpha: Only 32-bit with V4/V5 headers; support varies
- TIFFNone, LZW, Deflate, PackBits, JPEG, CCITT fax · 1–32 bits per sample; gray, RGB, palette, CMYK · alpha: Extra-sample alpha channel
- TipScanned documents in BMP? Combine them into one multi-page TIFF to keep each document in a single file.
- PrivacyFiles never leave your device; re-encoding drops EXIF/GPS metadata.
Format facts checked October 2026.
Runs in your browser — nothing you enter is uploaded or stored.
Scratchpad auto-saved
How it works — in four simple steps
No signup and nothing to install — it all runs in your browser.
Add BMP files
Drop, choose or paste them — or press the sample preset above.
Set the TIFF options
Scanned documents in BMP? Combine them into one multi-page TIFF to keep each document in a single file.
Convert
Press Convert — results appear with a before/after slider, sizes and format details.
Download
Save each file or everything as a ZIP.
Scanned documents in BMP? Combine them into one multi-page TIFF to keep each document in a single file.
Features
Lossless TIFF compression
LZW or Deflate with the horizontal predictor, PackBits or none — plus DPI metadata and multi-page output.
Combine files
Several images become one multi-page TIFF.
Batch + before/after
Convert many files at once, compare with the slider, download individually or as a ZIP.
Nothing uploaded
Decoding and encoding run in your browser tab; the files never leave your device.
About the BMP to TIFF Converter
BMP files come from scanners, screenshots in old software, industrial cameras and Windows tools — and they're uncompressed. TIFF with LZW or Deflate keeps every pixel but typically shrinks graphics dramatically, and it's the format archives and print workflows expect.
The BMP is decoded by your browser, which reads 1- to 32-bit bitmaps.
The TIFF is written by our own TIFF 6.0 encoder in little-endian (II) byte order: 8 bits per sample, RGB or RGBA (unassociated alpha via ExtraSamples), strips of about 64 KB, and your choice of LZW or Deflate — both with the horizontal-differencing predictor, which typically shrinks photos substantially — PackBits or no compression. Resolution is stored as XResolution/YResolution in pixels per inch, and several images can be written as pages of one file.
BMP vs TIFF compared
| Property | BMP | TIFF |
|---|---|---|
| Origin / standard | Microsoft Windows / OS/2 (1980s) | Aldus, 1986 · TIFF 6.0 (1992, Adobe) |
| Compression | Usually none (RLE4/RLE8 optional) | None, LZW, Deflate, PackBits, JPEG, CCITT fax |
| Transparency | Only 32-bit with V4/V5 headers; support varies | Extra-sample alpha channel |
| Colour depth | 1, 4, 8, 16, 24 or 32 bits per pixel | 1–32 bits per sample; gray, RGB, palette, CMYK |
| Animation / pages | No | Multi-page |
| Maximum size | Signed 32-bit width/height (memory-bound) | 4 GB file (32-bit offsets) — BigTIFF beyond |
| Typical use | Windows apps, embedded displays, machine tools | Print, scanning, fax, archives, GIS |
| Opens in | Every Windows program, browsers, most editors | Photoshop, Preview, Windows Photos, GIMP; only Safari among browsers |
Measured on our sample
What this page produced from its built-in sample (a 960 × 640 BMP), with each preset:
| Setting | Input | Output | Notes |
|---|---|---|---|
| Default settings | 450.1 KB · 480 × 320 | 77.8 KB · 480 × 320 | TIFF · LZW + predictor · 300 DPI |
| Deflate | 450.1 KB · 480 × 320 | 63.4 KB · 480 × 320 | TIFF · Deflate + predictor · 300 DPI |
Measured with this page’s converter in Chromium (October 2026). Press the sample preset above to reproduce; your own images will differ with their content.
Things to know
- Photos shrink less. Lossless compression works best on flat colours and text; noisy photographs may only shrink by 20–40%.
- 32-bit BMP alpha. If the BMP carries an alpha channel it's kept in the TIFF; otherwise the TIFF is plain RGB.