Image converter rgb565

This tool converts raster images into RGB565 pixel data, targeting embedded displays and microcontroller graphics workflows. It accepts common formats such as PNG, JPG, and BMP and outputs 16-bit data in binary, hexadecimal, or C array formats. It preserves image dimensions and reports width and height alongside the generated data, enabling deterministic texture mapping in firmware.
Under the hood, each input pixel's red, green, and blue channels are reduced from 8 bits to 5, 6, and 5 bits respectively, then packed into a 16-bit value per pixel. Endianness control changes byte order in the produced data. Optional dithering helps mitigate color banding when reducing color depth, at the cost of slightly noisier output.
Common beneficiaries include firmware engineers, game developers for resource-constrained hardware, and hobbyists prototyping displays on ESP32, Raspberry Pi Pico, or Arduino projects. The tool supports batch workflows and produces portable data that plugs into C/C++ source files, reducing manual conversion time and ensuring reproducible results across builds.
Key differentiators are precise RGB565 packing with endianness, multiple export formats, and a simple, scriptable interface that avoids UI talk. Use cases include sprites for small TFTs, icons for dashboards, and textures for microcontroller-based UIs.