BIN to RGBO Converter

Convert MacBinary font files to RGBO image format

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Opacity Data Included

RGBO carries an opacity channel with RGB color. BIN to RGBO conversion creates images ready for transparency-aware workflows.

Cloud-Based Tool

Convertio runs the BIN to RGBO conversion on its servers. Your device handles only the upload and download steps.

Any Platform

Access the converter from any browser on any device. BIN to RGBO works equally well on desktop, laptop, or mobile.

How to convert BIN to RGBO

1

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

2

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

3

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

About formats

BIN refers to MacBinary-encoded font files, a transfer format that preserves classic Macintosh file system features when moving data across platforms. Classic Mac OS stored fonts using the resource fork — a secondary data stream invisible to non-Mac systems — which meant that simply copying a Mac font to a Windows PC or Unix server would strip the actual font data entirely. MacBinary solves this by combining both the data fork and resource fork into a single flat file with a 128-byte header containing the original HFS metadata. In the font context, BIN files typically wrap TrueType suitcase fonts, PostScript Type 1 LWFN outline files, or bitmap NFNT font resources. The format was first specified in 1985 by Dennis Brothers and collaborators from the early Mac community, with MacBinary II following around 1987 and MacBinary III arriving in 1996 to support longer filenames. A key advantage is lossless preservation: every byte of the original Mac font file survives intact through email, FTP, or cross-platform file sharing, including creator and type codes that identify the font format. The single-file packaging is another practical strength — rather than dealing with separate data and resource streams, users and automated systems handle one portable container. Although modern macOS has moved away from resource forks and Mac fonts now typically ship as OTF, TTF, or DFONT files, BIN remains important for accessing archived font collections from the classic Mac era.
Developer: Dennis Brothers
Initial release: 1985
RGBO is a raw pixel data format designation used by ImageMagick, the open-source image processing suite first released in 1990, representing images as a flat sequence of Red, Green, Blue, and Opacity (inverted alpha) sample values with no header, container, or compression. The RGBO channel ordering specifies that the fourth channel is opacity rather than alpha — where alpha represents transparency (0 = transparent, max = opaque), opacity represents the inverse (0 = opaque, max = transparent). This distinction matters in compositing pipelines where the mathematical convention for the fourth channel varies between systems: some compositing models work with alpha (transparency), while older conventions including portions of ImageMagick's internal processing historically used opacity. RGBO files contain raw sample data at a user-specified bit depth (8-bit, 16-bit, or floating-point per channel), with pixels stored in scanline order. Because there is no header, the image dimensions, bit depth, and endianness must be specified externally when reading the file — typically via ImageMagick command-line arguments. One advantage is direct compatibility with processing pipelines that use the opacity convention: RGBO eliminates the need for channel inversion when interfacing with systems that expect opacity rather than alpha, preventing subtle compositing errors that occur when transparency conventions are mixed. The format's raw-data nature provides another practical benefit — with no encoding overhead, RGBO data can be memory-mapped, processed with SIMD instructions, or piped between processes with minimal latency. RGBO is primarily used within ImageMagick processing chains and can be converted to any other format using ImageMagick's extensive format support.
Initial release: 1990

Frequently Asked Questions

Why convert BIN to RGBO?

RGBO includes opacity alongside RGB color data. Converting BIN produces images with embedded transparency for compositing purposes.

How to open RGBO files?

RGBO files are handled by ImageMagick and graphics tools that support raw RGB plus opacity channel image data.

How is RGBO different from RGBA?

Both carry transparency data alongside RGB colors. RGBO specifically denotes an opacity channel ordering used by certain image tools.

Is the conversion fast?

Yes — font files are compact, so Convertio handles BIN to RGBO conversion in a matter of seconds using its cloud servers.

Does it cost anything?

No — BIN to RGBO conversion is free on Convertio. No registration, no payment — just upload, convert, and download.