HRZ to VIPS Converter

Change HRZ format to VIPS — quick online tool

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Effortless Conversion

Upload your HRZ, pick VIPS, and click Convert — the entire process takes just a few clicks with no technical expertise required.

Any Device Works

Run the HRZ to VIPS converter from any device — desktop, laptop, tablet, or phone. All you need is a web browser to get started.

Privacy Protected

Uploaded HRZ data is erased immediately after conversion. VIPS results are purged within 24 hours — your content stays confidential.

How to convert HRZ to VIPS

1

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

2

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

3

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

About formats

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
VIPS is the native file format of the libvips image processing library, originally developed by John Cupitt and Kirk Martinez at the National Gallery in London during the VASARI project (1989-1993) for high-resolution digitization and analysis of paintings. The VIPS format stores large images in a simple, memory-mappable layout: a header containing image dimensions, number of bands (channels), data type (8/16/32-bit integer, float, double, complex), color interpretation, resolution, and offset metadata, followed by the raw pixel data in band-interleaved format. This straightforward layout allows the operating system's virtual memory manager to map the file directly into address space, enabling libvips to process images much larger than available RAM by paging portions in and out as needed — a technique called demand-driven evaluation. VIPS files support images with any number of bands at any of the supported numeric types, accommodating everything from standard RGB photographs to hyperspectral datasets with hundreds of bands. One advantage is large-image performance: libvips's architecture processes images in small tiles evaluated on demand, meaning a 100,000 x 100,000 pixel image can be cropped, resized, sharpened, and saved without loading the entire image into memory — a capability that makes VIPS the engine behind image processing services handling millions of web images. The format's scientific heritage is another strength — the VASARI project required analyzing paintings at ultra-high resolution with multispectral imaging, and the VIPS format's support for arbitrary band counts and floating-point precision reflects these computational imaging origins. VIPS files are primarily used with the libvips library (available for C, Python, Ruby, and other languages) and can be converted to other formats via vips command-line tools or ImageMagick.
Initial release: 1993

Frequently Asked Questions

Why convert HRZ to VIPS?

Fast processing of very large images — converting HRZ to VIPS gives your SSTV images broader reach and easier sharing across standard platforms.

What programs open VIPS?

Any modern image viewer opens VIPS — Windows Photos, macOS Preview, GIMP, Photoshop, and web browsers all support it.

Can I batch convert HRZ to VIPS?

Yes — Convertio supports batch uploads. Add multiple HRZ images and convert them all to VIPS at once to speed up your workflow.

Do I need HRZ software installed?

No — the converter processes HRZ entirely in the cloud. You do not need any amateur radio slow-scan television software on your device to convert.

Does the conversion preserve quality?

The converter retains maximum fidelity during the HRZ to VIPS transformation. Any differences stem from the output format's own characteristics.

Is the conversion instant?

Near-instant for typical images — the cloud-based processing handles HRZ to VIPS conversion quickly. Very large data may take a moment.