Open .RAF files online
A .raf file is a Fujifilm RAW photograph — the unprocessed sensor capture every Fujifilm interchangeable-lens camera writes, a lineage that runs from the FinePix S-series DSLRs of the early 2000s through the whole X series and the GFX medium-format line today. Like any RAW it keeps the photosite data (14-bit on current bodies), the as-shot white balance and exposure, and the tonal headroom JPEG throws away.
ZipTool develops .raf files entirely in your browser: LibRaw — the open-source RAW engine behind many desktop converters — compiled to WebAssembly demosaics the sensor data, applies the camera's white balance, and renders an sRGB image you can download as PNG. X-Trans files included: Fujifilm's color filter array needs its own demosaic, which LibRaw performs in the tab. The engine (~1.1 MB) downloads once from this site's own domain and is cached; your photograph never leaves your device.
What is a `.raf` file?
Most sensors use a Bayer color filter array — a strict 2×2 repeating pattern of red, green, and blue filters. Since the X-Pro1 in 2012, most Fujifilm X-series bodies use X-Trans instead: a 6×6 repeating arrangement with irregularly spaced red and blue rows. Dropping the regular pattern removes the moiré risk that made an optical low-pass filter necessary, so X-Trans sensors resolve finer detail without one — at the cost of genuinely harder demosaicing, which is why third-party X-Trans support historically lagged behind Bayer. The entry X-A line stays on conventional Bayer, so a .raf is not automatically X-Trans; both kinds open here.
Depending on the body, the sensor data inside a .raf is stored uncompressed, losslessly compressed, or lossy-compressed — Fujifilm's menu has offered all three since the X-T3 generation; earlier bodies wrote uncompressed or lossy only. Whichever wrote your file, the develop reads it the same way. GFX medium-format files run bigger (50 and 102 megapixels) and take correspondingly longer to develop.
The film simulations Fujifilm is famous for — Provia, Velvia, Classic Chrome, Acros, Eterna and the rest — are not pixels stored in the file. They are a named look the camera's own converter applies when it produces a JPEG, recorded in the RAF as metadata. A third-party develop like this one renders the sensor data with the camera's as-shot white balance; the film-simulation rendering is a Fujifilm pipeline feature, not something hidden in the photosites.
- Fujifilm photographers reviewing and culling X-series and GFX shoots without Lightroom or X Raw Studio
- Checking real X-Trans detail on a file before deciding it is a keeper
- Opening a RAF received in a zip or from a client on a machine with nothing installed
- Exporting a developed PNG from a RAF without any desktop RAW converter
How to open a `.raf` online
Open ZipTool in a new tab, then drop your .raf onto the page — or click to browse for it, or paste a URL. The file opens in the RAW develop viewer, which runs LibRaw compiled to WebAssembly inside your browser tab — a full demosaic with camera white balance, not the embedded JPEG preview, read entirely on your device.
- Drag your
.rafonto the page — or click to browse, or paste a URL. - It opens immediately in the RAW develop viewer, which runs LibRaw compiled to WebAssembly inside your browser tab — a full demosaic with camera white balance, not the embedded JPEG preview. No install, no sign-up.
- Read, search, or copy it. Your file never leaves your browser.
Open `.raf` without uploading
Most "open raf online" sites work by uploading your file to a server and processing it there. ZipTool does the opposite: it loads its parser once, then reads your .raf locally in the browser tab. The contents stay on your device.
You can prove that in seconds. Open the page, press F12 for DevTools, switch to the Network tab, and open your file — no request carrying the file's contents is sent. You can also turn off Wi-Fi after the page loads and the file still opens. See security and privacy for the full picture.
Frequently asked questions
Does this really demosaic X-Trans files, or just show the embedded JPEG?
A real develop. The engine is LibRaw compiled to WebAssembly, running its X-Trans interpolation on the sensor data, then the camera's as-shot white balance and an sRGB conversion — it never touches the small JPEG Fujifilm embeds for thumbnails. That is also why a 40-megapixel X-H2 file takes a few seconds in the tab: the browser is doing the math a desktop RAW converter does.
How do I open a .raf file online?
Drop the .raf on this page — or click to browse, or paste a URL. The developed image appears with its camera model, dimensions, and lens info; the status bar offers a Download .png of the full-resolution render. The first open fetches the LibRaw engine (~1.1 MB) once from this site's own domain; afterwards it is cached.
Which cameras write .raf files?
Every Fujifilm interchangeable-lens camera: the whole X series (X-Pro, X-T, X-H, X-S, X-E, X-M including the Bayer-sensored X-A line), the GFX medium-format line, and before them the FinePix S-series DSLRs of the 2000s. Other brands' RAWs — Canon, Nikon, Sony, Adobe DNG and the rest — open here too; see the online RAW viewer.
Uncompressed, lossless compressed, or lossy compressed — does it matter here?
No — all three storage modes open identically, because the develop reads the decoded photosite data either way. The difference is file size on your disk (lossy-compressed RAFs run roughly half the uncompressed size) and, in principle, a small quality cost in the lossy case, exactly as with Canon's CRAW.
Does viewing my RAF upload the photo?
No. The develop engine is WebAssembly running in the page; your file is read locally and the pixels are rendered in the tab. The only network fetch is the engine itself (~1.1 MB, one time, from ziptool.app — not a third-party CDN), which matters for unreleased or client work. Press F12 → Network and watch: no request carries your photo. The online RAW viewer develops the whole camera-RAW family the same way.