FAX to VIFF Converter

Quick FAX to VIFF conversion — no signup needed

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Fax Content Access

Make FAX content viewable in VIFF format — no fax machines or specialized legacy viewers required.

Privacy Guaranteed

FAX uploads are erased upon completion. VIFF results are automatically purged from servers within 24 hours.

Simple Workflow

Upload FAX, choose VIFF, download. Three simple steps — the entire process completes in under a minute.

How to convert FAX to VIFF

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

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

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

About formats

FAX is a generic image file extension associated with facsimile transmission formats standardized by the ITU-T (formerly CCITT), with the underlying Group 3 compression standard ratified in 1980. FAX files typically contain monochrome (1-bit, black and white) image data compressed using the Modified Huffman (MH) encoding defined in ITU-T Recommendation T.4, which assigns variable-length codes to run lengths of consecutive white or black pixels along each scanline. The standard resolution for Group 3 fax is 204x98 dpi (normal mode) or 204x196 dpi (fine mode), reflecting the capabilities of thermal and laser fax machines of the era. FAX files encountered digitally are often raw Group 3 encoded bitstreams or TIFF wrappers with CCITT Group 3 compression (TIFF compression tag 3). The Group 3 encoding scheme is highly efficient for typical business documents — pages with mostly white space and black text — achieving compression ratios of 10:1 to 20:1 compared to uncompressed bitmaps. One advantage is universal fax system compatibility: Group 3 encoding is the mandatory baseline for all fax machines worldwide, meaning FAX files contain data in exactly the format transmitted over telephone lines, preserving the original fax data without transcoding losses. The format's role in business communications history provides another dimension — billions of fax transmissions using this encoding moved legal documents, medical records, and business correspondence for decades, and archived FAX files represent an important documentary record. FAX images can be viewed and converted using LibreOffice, ImageMagick, GIMP, and standard document management systems.

Developer: ITU-T

Initial release: 1980

VIFF (Visualization Image File Format) is a scientific image format developed by Khoral Research (originally at the University of New Mexico), first appearing around 1990 with the Khoros visual programming environment for image processing and data visualization. VIFF files use a 1024-byte header followed by optional color map data, and the image data itself, with the header containing detailed specifications: data storage type (bit, byte, short, integer, float, double, complex), data encoding (none, CCITT Group 3/4), color space model (none, generic, RGB, HSI, CMYK, and others), and support for multi-band (multi-channel) images with arbitrary numbers of bands. The format accommodates one-dimensional signals, two-dimensional images, three-dimensional volumes, and location data (sparse pixel coordinates), making it versatile beyond simple image storage. VIFF was designed for the Khoros/VisiQuest visual dataflow programming environment, where users constructed image processing pipelines by connecting processing nodes in a graphical canvas — an approach that influenced later systems like AVS, MATLAB Simulink, and LabVIEW. One advantage is scientific data fidelity: VIFF supports the full range of numeric types used in scientific computing (including complex numbers and double-precision floats), stores multi-band datasets natively, and carries calibration metadata — making it suitable for remote sensing, medical imaging, and spectral analysis applications where generic image formats lose information. The format's connection to the Khoros visual programming paradigm provides another notable dimension — VIFF was the standard I/O format for one of the most influential early visual programming environments for scientific image analysis. VIFF files can be read by ImageMagick and legacy Khoros/VisiQuest installations.

Developer: Khoral Research

Initial release: 1990

Frequently Asked Questions

Why convert FAX to VIFF?

FAX files require specialized fax viewers. Converting to VIFF lets anyone open the content easily.

Where can I open VIFF files?

Use Khoros/VisiQuest, ImageMagick, or XnView to view VIFF files.

Is fidelity maintained in FAX to VIFF conversion?

Yes — the converter reproduces your FAX content in VIFF at full fidelity. No visible quality is lost.

Is FAX to VIFF free on Convertio?

Yes, basic usage is completely free. Premium plans are available for additional speed and volume.

Can I convert several FAX files simultaneously?

Batch mode is fully supported. Add multiple FAX files and download each converted VIFF file individually.

Do I need to install any software?

No installations needed. The FAX to VIFF conversion runs entirely in your browser — nothing to download or set up.

Related Conversions

FAX to PDF

FAX to JPG

FAX to TIFF

FAX to JPEG

FAX to PNG

FAX to BMP

FAX to JP2

FAX to JIF

FAX to DXF

FAX to DOT

FAX to XPM

FAX to WBMP

FAX to GIF

FAX to TGA

FAX to SVG

FAX to PCX

FAX to ICO

FAX to CUR

FAX to PBM

FAX to PGM

FAX to PPM

FAX to WEBP

FAX to EXR

FAX to FTS

FAX to G3

FAX to HDR

FAX to HRZ

FAX to IPL

FAX to MAP

FAX to MNG

FAX to MTV

FAX to OTB

FAX to PAL

FAX to PALM

FAX to PAM

FAX to PCD

FAX to PCT

FAX to PDB

FAX to PFM

FAX to PICON

FAX to PICT

FAX to PNM

FAX to PSD

FAX to RAS

FAX to RGB

FAX to RGBA

FAX to RGBO

FAX to SGI

FAX to SUN

FAX to UYVY

FAX to VIFF

FAX to XBM

FAX to XV

FAX to XWD

FAX to YUV

FAX to JBG

FAX to JBIG

FAX to HEIC

FAX to HEIF

FAX to G4

Specific converters

JPG to VIFF

PNG to VIFF

AVIF to VIFF

HTML to VIFF

JPEG to VIFF

XLSX to VIFF

GIF to VIFF

DXF to VIFF

DOCX to VIFF

CSV to VIFF

PPTX to VIFF

PDF to VIFF

BMP to VIFF

WEBP to VIFF

ABW to VIFF

DBK to VIFF

KWD to VIFF

SXW to VIFF

AW to VIFF

3FR to VIFF

ARW to VIFF

CR2 to VIFF

CRW to VIFF

CUR to VIFF

DCM to VIFF

DCR to VIFF

DDS to VIFF

DNG to VIFF

ERF to VIFF

EXR to VIFF