BCD to Binary Converter

About This Tool

The tool accepts a BCD input as a sequence of 4-bit nibbles and returns the corresponding binary string. It is designed for developers, hardware engineers, and students who work with BCD-encoded numbers in digital circuits and software tests.
Conceptually, each nibble is validated to be in the range 0000–1001 (0–9). If any nibble lies outside this range, the process returns an error indication. The final binary string is produced by concatenating the validated nibble bits in order, preserving the overall width (4 bits per nibble).
Use cases include verifying microcontroller encoding, debugging data paths, teaching BCD interpretation, and preparing data for bit-level processing. The tool focuses on correctness and deterministic output, without arithmetic interpretation.
Key differentiators include strict nibble validation, clear error handling for invalid input, support for input formats with or without spaces, and a lightweight output that can be consumed by code, tests, or documentation. Output can be used directly in unit tests and embedded documentation.

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