GCSE Binary and Hex Visualiser

Binary and hex conversion questions follow a fixed structure. The mark scheme awards marks for working, not just the final answer. Students who lose those marks usually know the method. They just cannot see their own errors.

This tool walks through every conversion step by step. Denary to binary, binary to hex, hex to binary. Each one broken into the same stages that appear in AQA, OCR, and Edexcel mark schemes: the 8-bit weighting line, the active bits, the nibble split, the hex digit lookup.

Students choose a starting value and a direction, then follow the steps at their own pace. Every intermediate value appears before the next step begins.

Use it to introduce the method for the first time. Use it when a student gets the right answer but cannot show their working. Use it the week before an exam when these questions need to feel automatic.

Try it at pythoncoach.org/binary-hex

Works in any browser. No login required.