TGA to HRZ Converter

TGA to HRZ in seconds — online conversion tool

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Quick Turnaround

Fast processing means your HRZ file is ready moments after uploading the TGA source. No queues or delays for standard jobs.

Multi-File Support

Need to convert a batch of TGA files? Upload them together and get HRZ versions of each — efficient and time-saving.

Broad Format Support

TGA converts to HRZ and many other formats on Convertio. One upload, multiple output options — flexible for any workflow.

How to convert TGA to HRZ

1

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

2

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

3

Let the file convert and you can download your hrz 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
HRZ is a simple raster image format associated with slow-scan television (SSTV), a method of transmitting still images over radio frequencies used by amateur radio operators since the late 1950s when Copthorne Macdonald pioneered the technology. HRZ files store images at a fixed resolution of 256x240 pixels in raw RGB format, with each pixel represented as three bytes (red, green, blue) at 8 bits per channel, producing uncompressed files of exactly 184,320 bytes. The format has no header, no metadata, and no compression — the file is simply a sequential dump of raw pixel data in row-major order. This extreme simplicity reflects the format's origins in the amateur radio community, where SSTV images are transmitted as audio tones encoding luminance and chrominance values over narrow-bandwidth HF (shortwave) radio channels. The fixed 256x240 resolution corresponds to common SSTV transmission modes, and HRZ files serve as the digital capture or storage medium for received SSTV transmissions. One advantage is the format's zero-overhead structure: with no parsing, decompression, or metadata processing required, HRZ files can be read by any program capable of reading raw pixel data with known dimensions — a single function call in virtually any programming language. The format's connection to amateur radio SSTV culture is another notable aspect: HRZ files document a unique form of image communication where operators transmit photographs over thousands of miles using nothing but radio waves and audio encoding, a practice that continues today alongside digital modes. HRZ files can be opened by ImageMagick, GIMP, and specialized SSTV software.
Developer: SSTV Community
Initial release: 1985

Frequently Asked Questions

Why convert TGA to HRZ?

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

What programs open HRZ files?

ImageMagick and slow-scan television (SSTV) software open HRZ radio image format files

Are colors preserved in the TGA to HRZ conversion?

Color information transfers accurately to HRZ. The converter maintains the original color profile as closely as the target format allows.

How fast is TGA to HRZ conversion?

Most conversions complete within seconds. Larger or more complex files may take slightly longer, but processing happens on fast cloud servers.

Can I convert TGA to HRZ without paying?

Yes — basic TGA to HRZ conversion is available at no cost. Paid tiers unlock batch mode, bigger uploads, and faster processing.

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.