Low-Level Systems Programming Utility Suite
Interactive visual utilities to compute binary patterns, explore compiler alignment padding, and simulate memory pointer scaling.
Binary / Hex / Dec Converter
Convert 64-bit numbers across decimal, hex, octal, and binary bases. Features signed/unsigned interpretations, endian byte ordering, and an interactive clickable bit grid.
C Struct Memory Visualizer
Inspect compiler structure layout and padding bytes. Enter C struct code to calculate field offsets and alignments for x86-32 and x86-64, illustrated in interactive byte grids.
Pointer Arithmetic Simulator
Visualize how memory addresses scale under C pointers. Toggle array element index steps to see step-by-step arithmetic explanations and out-of-bounds safety warnings.
>_ Why systems visualization matters
Memory Alignment: CPUs are optimized to read memory at word boundaries (4 or 8 bytes). Compilers automatically inject silent padding bytes to align elements, which can cause significant memory bloat. Our C Struct Visualizer makes this waste obvious and guides optimization.
Pointer Offsets: In systems programming, adding ptr + 1 shifts the actual address forward by sizeof(*ptr) bytes, not 1. Mastering this scaling prevents off-by-one errors and buffer overruns.
Cross-Compilation Offsets: Structure layouts change dramatically between 32-bit (x86-32) and 64-bit (x86-64) targets due to differences in standard type alignments (like `long` and `double`). Model these changes to write portable systems code.
Endian Representations: Understand how Big-Endian and Little-Endian devices reorder bytes differently in actual physical memory.