PIX to OTB Converter

Instant PIX to OTB conversion online for free

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Bulk Conversion

Handle many PIX files at once. Upload a batch and convert them all to OTB together — no need to process one file at a time.

Cloud-Based Engine

Conversion runs on powerful servers, not your device. Upload your PIX files and let the cloud handle the heavy lifting for OTB output.

Effortless Process

The PIX to OTB converter has a clean, intuitive interface. Upload your file, pick OTB as the output, and the converter does the rest.

How to convert PIX to OTB

1

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

2

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

3

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

About formats

PIX is a raster image format originally developed by Alias Research (later Alias|Wavefront, then acquired by Autodesk) in the mid-1980s for use with their 3D animation and modeling software running on Silicon Graphics workstations. The format stores uncompressed 24-bit RGB image data in a straightforward scanline-by-scanline layout preceded by a minimal header containing the image width and height. PIX was the native output format of Alias's rendering engines, used to store individual frames of 3D animations and rendered stills from software that would eventually evolve into Maya, one of the most influential 3D content creation tools in entertainment history. The format's design reflected the priorities of high-end production rendering: raw speed for writing individual frames during batch renders, exact pixel fidelity with no compression artifacts, and compatibility with the hardware framebuffers used in professional compositing suites of the era. One advantage of PIX is its rendering pipeline heritage — the format can be read by tools throughout the VFX and animation industry, and legacy PIX sequences from Alias-era productions represent irreplaceable primary assets from foundational works in computer animation. The format's simplicity provides another practical benefit: with no compression overhead, metadata complexity, or container parsing required, PIX files can be read and written with minimal code, making them trivial to incorporate into custom rendering and compositing pipelines. PIX files are supported by ImageMagick, GIMP, XnView, and various professional compositing tools.
Developer: Alias Research
Initial release: 1985
OTB (Over-the-Air Bitmap) is a monochrome image format developed by Nokia as part of their Smart Messaging specification in 1997, designed for transmitting small graphics — operator logos, group graphics, and picture messages — to Nokia mobile phones via SMS. OTB files contain 1-bit (black and white) images at small fixed resolutions, typically 72x14 pixels for operator logos and 72x28 pixels for group graphics, encoded in a compact binary format suitable for embedding within the payload of SMS text messages. The format uses a simple structure: a header byte indicating whether the image is an operator logo or group graphic, width and height values, and the raw bitmap data where each bit represents one pixel packed eight per byte. The extremely tight format — designed to fit within a single SMS message (140 bytes maximum payload, shared with addressing overhead) — reflects the severe constraints of mobile communication in the late 1990s. Nokia's Smart Messaging system was one of the first commercial implementations of rich content delivery to mobile phones, and OTB images represented the entire visual content capability of Nokia handsets before MMS and mobile data browsing arrived. One advantage is the format's historical role as a pioneer of mobile visual messaging: OTB images were among the first graphics that ordinary consumers could send to each other's phones, predating MMS, camera phones, and smartphones by nearly a decade. The format's minimal footprint is another characteristic — entire images fit in a few dozen bytes, reflecting an era of extreme bandwidth constraints. OTB files are supported by ImageMagick, various Nokia phone management tools, and specialty mobile format utilities.
Developer: Nokia
Initial release: 1997

Frequently Asked Questions

Why convert PIX to OTB?

PIX files have limited software support. Converting to OTB ensures your images are accessible on all modern devices and platforms.

What programs open OTB files?

Almost every device opens OTB natively — smartphones, tablets, PCs, and Macs all include built-in viewers for this common image format.

Why is PIX not widely supported?

PIX belongs to the legacy Alias PowerAnimator ecosystem — a precursor to Maya. Modern 3D tools moved to different formats long ago.

How is image quality handled during conversion?

The converter extracts full image data from PIX and encodes it into OTB at the highest quality the target format allows. No unnecessary loss.

Do I need to install anything?

No installation needed — the conversion happens entirely online. Open the converter in any modern web browser and your device handles the rest.