FAX to RGBA Converter

Convert FAX files to RGBA — instant online tool

Choose Files

Drop files here. 1 GB maximum file size or Sign Up

Server-Side Engine

All processing happens in the cloud. Your computer stays free while FAX converts to RGBA on our servers.

Legacy Format Bridge

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

Safe Conversion

Your FAX file is removed right after processing. The RGBA download is auto-deleted within 24 hours.

How to convert FAX to RGBA

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

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

Let the file convert and you can download your rgba 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

RGBA is a raw (headerless) image format that extends the RGB color model with a fourth channel for alpha transparency. Each pixel is stored as four consecutive sample values — red, green, blue, and alpha — written sequentially in scanline order with no container structure, headers, or compression. The alpha channel specifies opacity for each pixel independently: a maximum value means fully opaque, zero means fully transparent, and intermediate values produce semi-transparency. Like its three-channel counterpart, RGBA files require the image dimensions and bit depth to be specified externally since the raw data stream contains no metadata. The format supports 8-bit (four bytes per pixel, 32-bit total), 16-bit, and floating-point channel depths. In compositing workflows, the alpha channel enables layering operations where foreground elements are blended over backgrounds according to their per-pixel opacity — the mathematical foundation for all modern image compositing, described by Porter and Duff in their seminal 1984 paper on digital compositing. One advantage is direct framebuffer compatibility: modern GPU hardware natively processes 32-bit RGBA pixels, so raw RGBA data can be uploaded to texture memory or written from render targets without any format conversion, critical for real-time graphics applications and game engines. The format's simplicity in representing transparent images provides another practical benefit — scientific visualization, medical imaging, and overlay rendering can produce raw RGBA output that any downstream tool can consume without needing a common container format. RGBA files are handled by ImageMagick, FFmpeg, and various graphics and compositing tools.

Developer: ImageMagick Studio LLC

Initial release: 1990

Frequently Asked Questions

Why convert FAX to RGBA?

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

Which apps open RGBA files?

Open RGBA files using IrfanView, GIMP, or ImageMagick.

Is the converted RGBA file high quality?

Document content stays crisp and readable. The converter maintains FAX image fidelity in the RGBA result.

Do I need to pay for this conversion?

No cost for standard FAX to RGBA conversions. Premium plans add faster processing and increased file limits.

Does this tool handle multiple files?

Yes — batch upload is supported. Drop multiple FAX files and each one converts to RGBA for separate download.

What platforms support this converter?

The converter works in any modern web browser — Windows, macOS, Linux, Android, iOS. No installation required.

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

PNG to RGBA

JPG to RGBA

BMP to RGBA

JPEG to RGBA

DDS to RGBA

GIF to RGBA

PDF to RGBA

TGA to RGBA

HTML to RGBA

PPTX to RGBA

SVG to RGBA

TXT to RGBA

ICO to RGBA

PSD to RGBA

WEBP to RGBA

TIFF to RGBA

AI to RGBA

PPM to RGBA

DNG to RGBA

YUV to RGBA

JFIF to RGBA

CUR to RGBA

DOCX to RGBA

EXR to RGBA

CDR to RGBA

ODT to RGBA

XCF to RGBA

XLS to RGBA

CR2 to RGBA

XLSX to RGBA