RAF to SIX Converter

Easily convert RAF to SIX — works in any browser

Drop files here. 1 GB maximum file size or Sign Up
to
Facebook Amazon Microsoft Tesla Nestle Walmart L'Oreal

Detail Retained

High-quality processing ensures your RAF images translate to SIX without unnecessary artifacts, banding, or color shifts.

User-Friendly Tool

The conversion interface is clean and intuitive — just three steps from RAF upload to SIX download. No learning curve, no complicated menus.

Instant Processing

Most RAF files convert to SIX in just seconds. High-performance cloud servers ensure quick turnaround even for large images.

How to convert RAF to SIX

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose six or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your six file right afterwards

About formats

RAF (RAW Format) is the proprietary RAW image format used by Fujifilm digital cameras, introduced in 2000 with the FinePix S1 Pro and continuing through the entire X-series mirrorless lineup and GFX medium-format system. RAF files capture the unprocessed readout from Fujifilm's image sensors — notably the SuperCCD, EXR, and X-Trans sensor designs — at 12 or 14 bits per channel, preserving the complete tonal and color information before any in-camera processing. What makes RAF distinctive among RAW formats is Fujifilm's X-Trans color filter array: instead of the standard 2x2 Bayer RGGB pattern used by virtually all other manufacturers, X-Trans uses a 6x6 semi-random pattern that distributes color samples more organically, reducing moire and false color without requiring an optical low-pass filter. RAF files from X-Trans sensors require specialized demosaicing algorithms that differ from standard Bayer processing. The format stores extensive metadata including Fujifilm's Film Simulation mode selection (Provia, Velvia, Astia, Classic Chrome, Acros, and others inspired by their analog film stocks), grain effect settings, dynamic range mode, and lens correction data for Fujinon XF and XC optics. One advantage is the Film Simulation heritage — Fujifilm's decades of film emulsion expertise informs the color science embedded in RAF metadata, and photographers can switch between film-inspired renderings during post-processing without quality loss. RAF files are supported by Adobe Lightroom, Capture One, Fujifilm's own X RAW Studio, dcraw, RawTherapee, and other major RAW processors.
Developer: Fujifilm
Initial release: 2000
SIX is a file extension for SIXEL (Six Pixel) graphics data, a bitmap graphics format developed by Digital Equipment Corporation (DEC) in 1983 and introduced with the LA50 dot matrix printer. SIXEL encodes images as a sequence of printable ASCII characters, where each character represents a column of six vertical pixels (a 'sixel') — the character's ASCII value minus 63 provides a 6-bit binary pattern, with each bit controlling one pixel in the vertical column. The encoding is structured as a series of sixel bands (each six pixels tall) across the image width, with control sequences for color selection (up to 256 registers with HLS or RGB specification), repeat counts (run-length encoding for efficiency), carriage return, and newline commands. SIXEL data is transmitted to the output device using DEC's standard escape sequence protocol, embedded within the text stream alongside regular character output. Originally designed for DEC's line of printers and later supported by DEC VT-series terminals (VT240, VT330, VT340), SIXEL has experienced a remarkable revival in modern terminal emulator software. One advantage is terminal-native image display: SIXEL allows images to be rendered directly within a text terminal session without requiring a graphical window system, enabling command-line tools to display graphs, photographs, and previews inline with text output. This capability has driven adoption in modern terminals like mlterm, xterm, WezTerm, and foot. SIX/SIXEL data can be generated by ImageMagick, libsixel, and chafa, and viewed in any SIXEL-capable terminal emulator.
Initial release: 1983

Frequently Asked Questions

What are the reasons to convert RAF to SIX?

RAF captures Fujifilm's acclaimed color rendition in raw form — conversion to SIX finalizes that image data into a format ready for practical use.

How do I open a SIX file?

Open SIX files using compatible terminal emulators like mlterm, xterm, and mintty.

How long are converted files stored?

Converted SIX files remain available for download for up to 24 hours, after which they are automatically deleted from Convertio servers.

Is RAF to SIX conversion free?

Yes — basic RAF to SIX conversion is free. If you need to process larger batches or bigger files, premium options are available.

Is my RAF file safe during conversion?

Convertio prioritizes privacy — your RAF file is deleted after conversion completes, and the SIX result is automatically removed within 24 hours.

Do I need to install software?

No software needed. The conversion engine runs server-side — you just upload your RAF through the browser and get the SIX back.