RAF to JPG Converter
Convert RAF to JPG 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 a standard JPEG at the quality you choose. 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 JPG
- 1
Add your RAF files: drop them here, choose them, or paste from the clipboard.
- 2
Set the quality. 85 to 92 looks identical to the original for most photos; 70 to 80 saves much more with little visible change.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .jpg files one at a time or together as a ZIP.
Why use Aback Images for raf to jpg
Where the JPG goes next
JPG opens in every operating system, browser, phone, photo kiosk and image editor.
JPG next to RAF
The JPG is made from the camera's 8-bit preview, so it is a small fraction of a 20 to 60 MB raw file.
A second JPEG generation
The pixels come from the JPEG preview the camera embedded in the RAF, so they have been compressed once already; keep the quality at or above the default.
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 JPG
What changes from RAF to JPG
Encoding: the RAF uses uncompressed or lossless compressed sensor data in Fujifilm's own container; JPG uses lossy DCT coding in 8×8 pixel blocks, with colour usually stored at half resolution, and the download is a standard JPEG at the quality you choose.
Bit depth: 12 to 16 bits per channel depending on the camera in the RAF; JPG allows 8 bits per channel, and the JPG 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; JPG supports YCbCr shown as RGB, greyscale, or CMYK from print software, written here as 8-bit sRGB.
Metadata: the RAF can carry EXIF and Fujifilm maker notes, including the Film Simulation; JPG can carry EXIF (camera, date, GPS), XMP, IPTC and an ICC profile in APP segments, 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 JPG
JPEG is the universal photo format. It compresses by discarding fine detail the eye is least sensitive to, which makes photos small but blurs sharp edges and text if pushed too far.
A JPEG starts with the bytes FF D8 and is a run of marker segments: APP1 carries EXIF and often a thumbnail, APP2 an ICC profile, DQT the quantization tables that decide the quality, and SOS the compressed scan, which ends at FF D9.
When converting RAF to JPG makes sense
JPG is the better choice for photographs that need to open anywhere, while RAF suits editing Fujifilm photos in a raw developer.
JPG strengths: Opens everywhere: every browser, phone, camera, printer and app; Small files for photographs; Adjustable quality from tiny to near-lossless. Drawbacks to weigh: No transparency; Lossy: every re-save loses a little more; Blocky artifacts around text, logos and sharp lines.
Limitations
- X-Trans sensor data is never demosaiced here, so none of the artefacts some raw developers produce from it appear.
- JPG has no transparency and no animation; it is the safest choice when a file must open on any device or upload form.
- Each time a JPG is edited and saved again it loses a little more detail, so keep your original for further editing.
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Frequently asked questions
Does converting RAF to JPG lose quality?
JPG is lossy, so detail the eye barely notices is discarded to save space. The RAF's preview is a camera JPEG already, so keep the quality high to avoid stacking artefacts. The sensor's 12 to 16 bits are not used: the 8-bit camera preview is converted.
What quality should I choose for JPG?
85 to 92 looks identical to the original for most photos. 70 to 80 saves a lot more with little visible change. Below 60, blocking appears around edges and in skies.
Which apps open JPG files?
Every operating system, browser, phone, photo kiosk and image editor.
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.