TIFF to QOI Converter
Processing entirely on your device — large files may take a moment.
QOI is popular with hobbyist engines and emulators; convert to PNG to view it anywhere. If your files are still in TIFF format, this page is the shortcut: TIFF is the standard format of the scanner, fax and print industries. It stores very high quality — usually lossless — and can hold multiple pages in one file, at the cost of large file sizes.
This converter runs entirely in your browser using WebAssembly — your files never leave your device, nothing is uploaded, and there are no watermarks, sign-ups or queues. Drop in several files at once to convert them as a batch.
How TIFF compares to QOI
| TIFF | QOI | |
|---|---|---|
| Compression | Lossless (LZW/ZIP) or none | Lossless (RLE/delta) |
| Transparency | Supported (alpha channel) | Supported |
| Animation | Not supported | Not supported |
| Metadata | Rich tag system (EXIF, GeoTIFF) | None |
| Best for | Print, scanning, archival | Hobby engines, lossless simplicity |
How to convert TIFF to QOI
- 1
Select your files
Drag & drop your TIFF files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to QOI". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted QOI file individually, or grab everything at once as a ZIP archive.
About the TIFF format
TIFF, introduced by Aldus in 1986 and maintained by Adobe since, is the workhorse of the scanning, printing and archiving industries. It is a tag-based container: baseline RGB, CMYK, grayscale and indexed color, compressed with lossless LZW or ZIP (or not at all), with 8- or 16-bit depth and even multiple pages in a single file. A scanned contract or a print-ready magazine page lives in TIFF.
Its historical weakness is dialect fragmentation: the tag system is so flexible that exotic TIFFs — GeoTIFFs, fax TIFFs, certain 16-bit CMYK variants — still trip up careless readers. Files are huge, and no browser displays TIFF natively, so it never escaped its professional niches.
+ Strengths
- ✓Lossless with up to 16-bit-per-channel depth
- ✓Multipage support — one file, many scans
- ✓CMYK and print-industry color handling
- ✓Rich, extensible tag metadata for archiving
! Limitations
- −Very large files, even compressed
- −Dialect fragmentation trips up simple readers
- −No native browser display
About the QOI format
QOI (Quite OK Image, 2021) is a lossless format defined in one short specification document: a stream of simple run-length and delta ops over linear pixels. An encoder fits in 300 lines, decodes faster than PNG, and compresses comparably for photographic content.
It has found a home in emulators, demoscene projects and hobby engines — anywhere people want images without a codec dependency. Viewers rarely support it, so converting QOI to PNG is the way to bring these files into normal tools.
+ Strengths
- ✓Radically simple spec (~200 lines)
- ✓Lossless with fast decode
- ✓No patent or licensing questions
! Limitations
- −Almost no viewer support
- −Larger than modern codecs for many images
Why convert TIFF to QOI?
Converting makes sense where the strengths of QOI meet what TIFF cannot give you. Radically simple spec (~200 lines) Meanwhile Very large files, even compressed One pass through the converter above puts your file on the right side of that trade-off.
Frequently asked questions
Is this TIFF to QOI converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Will I lose quality converting TIFF to QOI?
No — QOI is a lossless format, so every pixel of the converted image matches your original TIFF file. You can also adjust the quality/size balance before converting when the target format supports compression.
What happens to EXIF data and other metadata?
Conversions here re-encode the image, and re-encoding generally does not carry the original metadata over. If the EXIF data of your TIFF files matters (camera model, GPS, timestamps), keep the original file as the master and treat the converted copy as the shareable version.
Will transparent areas survive the conversion to QOI?
Transparency is kept whenever QOI actually supports an alpha channel. If the target format has none (like JPG), transparent areas are flattened onto a white background — that is a property of the format, not of this tool.