RAF to TIFF Converter
Convert RAF to TIFF in your browser. The JPEG preview is converted, and it already carries the Film Simulation (Provia, Velvia, Classic Chrome and so on) chosen in camera. No raw development happens here. You get an uncompressed 8-bit RGBA TIFF with the resolution recorded. Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
RAW expected · other image formats also work
How to use RAF to TIFF
- 1
Add your RAF files: drop them here, choose them, or paste from the clipboard.
- 2
There is nothing to tune: the TIFF is written uncompressed. Resizing and rotating are under More options if you need them.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .tiff files one at a time or together as a ZIP.
Why use Aback Images for raf to tiff
Where the TIFF goes next
TIFF opens in Photoshop, Lightroom, GIMP, Affinity, macOS Preview, Windows Photos and print RIPs.
TIFF next to RAF
The TIFF stores the camera preview's pixels uncompressed, so it can be as large as the 20 to 60 MB raw file, or larger, depending on the preview's resolution.
No new artefacts
The preview inside the RAF is a camera JPEG; the TIFF stores its decoded pixels uncompressed, so this step adds no compression damage of its own.
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
RAF vs TIFF
What changes from RAF to TIFF
Encoding: the RAF uses uncompressed or lossless compressed sensor data in Fujifilm's own container; TIFF uses none, LZW, PackBits, Deflate or JPEG, chosen per file, and the download is an uncompressed 8-bit RGBA TIFF with the resolution recorded.
Bit depth: 12 to 16 bits per channel depending on the camera in the RAF; TIFF allows 1 to 16 bits per channel, or 32-bit floating point, and the TIFF written here has 8 bits per channel. The sensor's 12 to 16 bits are not used: the 8-bit camera preview is converted.
Colour: camera RGB from an X-Trans 6×6 or Bayer 2×2 mosaic in the RAF; TIFF supports RGB, CMYK, Lab, greyscale or palette, often with an ICC profile, written here as 8-bit sRGB.
Metadata: the RAF can carry EXIF and Fujifilm maker notes, including the Film Simulation; TIFF can carry EXIF, XMP, IPTC and ICC, all stored as tags, but nothing is copied across.
About RAF
RAF is the raw format of Fujifilm cameras, from the X series to the medium-format GFX. Most X-series bodies use an X-Trans sensor with a 6×6 colour filter pattern instead of the usual Bayer 2×2.
RAF is not TIFF at the top level: it opens with the text 'FUJIFILMCCD-RAW', then a header with the camera model and offsets to three blocks: a JPEG preview near the start of the file, a header describing the sensor layout, and the sensor data.
RAF files usually come from Fujifilm X-T, X-H, X-S, X-E, X100 and GFX cameras.
About TIFF
TIFF is the professional archive and print format. It can hold multiple pages, high bit depths and lossless data, and is common in scanning, publishing and GIS.
A TIFF begins with 'II' or 'MM' for the byte order and the number 42, then an offset to the first image file directory (IFD): a table of tags giving the size, compression, colour model and the location of the strips or tiles of pixels. Each further page is another IFD.
When converting RAF to TIFF makes sense
TIFF is the better choice for printing, scanning and archival masters, while RAF suits editing Fujifilm photos in a raw developer.
TIFF strengths: Lossless and print-ready; Multiple pages in one file; Preferred by print shops and archives. Drawbacks to weigh: Very large files; Browsers cannot display it; Many variants and compression schemes.
Limitations
- X-Trans sensor data is never demosaiced here, so none of the artefacts some raw developers produce from it appear.
- The TIFF is written uncompressed for maximum compatibility, so it is large; print shops and archives generally expect that.
- Browsers other than Safari do not display TIFF, so it is not a format for the web.
More conversions
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Frequently asked questions
Does converting RAF to TIFF lose quality?
TIFF is written uncompressed, so the pixels are stored exactly as decoded. Those pixels come from the camera's JPEG preview, so its compression stays, but nothing new is lost. The sensor's 12 to 16 bits are not used: the 8-bit camera preview is converted.
Which apps open TIFF files?
Photoshop, Lightroom, GIMP, Affinity, macOS Preview, Windows Photos and print RIPs. It opens in Safari only; other browsers do not display TIFF.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.