FAX to XV Converter

Transform FAX files to XV — free online converter

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Legacy Format Bridge

FAX is a legacy format. Converting to XV brings your fax archives into modern, widely accessible formats.

Browser-Based Tool

Convert FAX to XV directly in your web browser. No desktop software, plugins, or downloads required.

Data Protection

Your FAX files are removed immediately after processing. Converted XV output is purged within 24 hours.

How to convert FAX to XV

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

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

Let the file convert and you can download your xv 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

XV is an alternate file extension for the VIFF (Visualization Image File Format) developed by Khoral Research as part of the Khoros scientific image processing environment, which originated at the University of New Mexico around 1990. The .xv extension and the .viff extension refer to the same underlying format — a container with a 1024-byte header encoding image dimensions, data type (from single-bit to double-precision float and complex numbers), color space, band count, and optional spatial location metadata, followed by color map data and pixel values. The XV extension became common on systems where Khoros was installed alongside other X Window System tools, and in some research communities .xv was preferred over .viff as a shorter alternative. Khoros itself was a pioneering visual programming system where scientists assembled image processing pipelines by wiring together processing nodes in a graphical canvas — an approach that predated and influenced similar environments in MATLAB, LabVIEW, and commercial remote sensing packages. One advantage of the VIFF/XV format is its ability to store data at scientific precision levels — floating-point and complex number pixel values preserve measurement accuracy that would be lost in photographic formats limited to 8-bit or 16-bit integers, making it valuable for spectral analysis, computational physics output, and satellite imagery. The multi-band architecture provides another strength, allowing a single file to hold dozens of spectral channels from multispectral or hyperspectral sensors without splitting data across multiple files. XV files are supported by ImageMagick and can be converted to modern image formats for visualization or publication.

Developer: Khoral Research

Initial release: 1990

Frequently Asked Questions

Why convert FAX to XV?

XV is widely supported by image viewers and browsers — converting from FAX eliminates the need for fax tools.

What opens XV files?

Open XV files using XV image viewer, ImageMagick, or Khoros tools.

Does conversion affect image clarity?

Yes — text and line art from FAX files convert with full clarity. The XV output retains original sharpness.

Can I convert FAX to XV for free?

Yes — basic FAX to XV conversion is free. Premium tiers provide additional throughput and faster processing.

Does the converter support batch processing?

Batch conversion is supported. Upload several FAX files simultaneously and download each XV result.

How long does FAX to XV take?

Conversion usually completes in seconds. Cloud-based processing keeps everything fast regardless of your device.

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FAX to TGA

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FAX to WEBP

FAX to EXR

FAX to FTS

FAX to G3

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FAX to MAP

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FAX to MTV

FAX to OTB

FAX to PAL

FAX to PALM

FAX to PAM

FAX to PCD

FAX to PCT

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FAX to PFM

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FAX to RGBA

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FAX to SGI

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FAX to XV

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FAX to YUV

FAX to JBG

FAX to JBIG

FAX to HEIC

FAX to HEIF

FAX to G4

Specific converters

JPG to XV

PNG to XV

HTML to XV

ICO to XV

AVIF to XV

JPEG to XV

PSD to XV

DOCX to XV

PDF to XV

WEBP to XV

PPSX to XV

PPTX to XV

SVG to XV

TGA to XV

TXT to XV

RTF to XV

ODP to XV

BMP to XV

CDR to XV

CSV to XV

DXF to XV

EPUB to XV

GIF to XV

XLSX to XV

ABW to XV

DBK to XV

KWD to XV

SXW to XV

AW to XV

3FR to XV