TGA to RB Converter

TGA to RB in seconds — online conversion tool

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Format Versatility

Beyond RB, Convertio supports dozens of output formats for your TGA files. One tool handles all your conversion needs.

Compact Results

TGA files are often uncompressed and large. Converting to RB typically produces a much smaller file while preserving quality.

Nothing to Install

The entire TGA to RB conversion happens in your web browser. No downloads, no plugins — just a clean online tool.

How to convert TGA to RB

1

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

2

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

3

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

About formats

TGA (Truevision Graphics Adapter, also known as TARGA) is a raster image format created by Truevision in 1984 for their line of display adapter cards designed for IBM PC compatibles. The format stores pixel data in a straightforward structure: an 18-byte header specifying dimensions, color depth, and image descriptor flags, optional color map data, and the pixel array in either uncompressed or RLE-compressed form. TGA supports indexed color (8-bit with palette), true color (15-bit, 16-bit, 24-bit), and true color with alpha channel (32-bit), and was one of the first PC image formats to include per-pixel alpha transparency. The format became a staple of the professional graphics industry, widely adopted by video editing suites, 3D rendering software, and game development pipelines throughout the 1990s and 2000s. One advantage is native alpha channel support — TGA was one of the earliest formats offering full 8-bit alpha transparency per pixel, making it the standard output format for 3D renderers and compositing software where layered transparency is essential. The simple, well-documented structure is another strength: TGA files are quick to parse and write, with no complex metadata or container overhead, valued in real-time applications and game engines where loading speed matters. While PNG has largely replaced TGA for general use, the format persists in game development, texture pipelines, and 3D rendering workflows where its simplicity and alpha support remain advantageous.
Developer: Truevision
Initial release: 1984
RB is the native ebook format of the Rocket eBook, one of the first commercially available dedicated e-reading devices, developed by NuvoMedia and released in October 1998. Founded by Martin Eberhard and Marc Tarpenning — who later co-founded Tesla Motors — NuvoMedia designed the Rocket eBook as a handheld device with a reflective LCD screen, capable of storing approximately ten books in its internal memory. The RB format packages HTML-based content along with embedded images, metadata, and a table of contents into a single binary container optimized for the device's limited hardware. Content was purchased and downloaded through NuvoMedia's RocketLibrarian desktop software. A notable advantage of the format was its early support for bookmarking, annotation, dictionary lookups, and adjustable font sizing — features now standard on modern e-readers but revolutionary in the late 1990s. The Rocket eBook demonstrated viable commercial demand for dedicated reading devices, paving the way for subsequent platforms from Sony, Amazon, and others. NuvoMedia was acquired by Gemstar-TV Guide International in 2000, which discontinued the device line in 2003. While RB files are largely a historical curiosity today, they can be converted to modern formats using ebook management tools, and the format remains significant as a pioneering chapter in the evolution of digital reading.
Developer: NuvoMedia
Initial release: 1998

Frequently Asked Questions

Why convert TGA to RB?

Video production pipelines output TGA sequences. Converting to RB lets you use individual frames in standard workflows.

What programs open RB files?

Calibre and legacy RocketEdition/REB1100 devices open RB format e-books

How many TGA files can I convert at once?

You can upload multiple TGA files in one session. Each converts to RB separately, and all results are downloadable upon completion.

Does the conversion preserve transparency?

RB does not support transparency natively. Alpha channel data from TGA will be flattened against a solid background during conversion.

Does this converter work on mobile devices?

Absolutely. The browser-based converter runs on phones and tablets — iOS, Android, or any device with a modern browser handles it fine.

Is my TGA file safe during conversion?

Uploaded files are processed securely and deleted after conversion. Downloaded results are removed from servers within 24 hours.