Learn Binary – Hex Converter

Learn binary and hex the way that actually sticks — by converting, not cramming Learn Binary is the binary and hex trainer that drills you on decimal, binary and hex conversion both directions, with a level climb that takes you bit by bit from your first switch to a full byte. A real learning system, not just a converter: - The drill — see a number, build the answer on a tappable bit row or a fast keypad, and get an instant verdict plus the place-value breakdown behind it. - The nibble block — the standout teaching device: see how 0x61 = 0110 0001 = 97, with hex sat over colour-coded 4-bit nibbles. It's the trick that makes hex finally click. - A level climb — one level per bit, from the first power of two up to the full byte (the 256 Club) and beyond. Each level is a short test you clear at about 80% to unlock the next, so you're always learning at the right difficulty. - Two's-complement — read and write signed bytes, with a clear sign-bit reveal. - Bitwise ops — practise AND, OR and XOR, worked one bit-column at a time. - Byte Speed Run — an optional 60-second timed challenge, unlocked once the byte is mastered (speed comes after accuracy, never before). - Daily goal + streak — three focused minutes a day, with a streak freeze so a single missed day doesn't reset your progress. - Explore — drag a slider and watch decimal, binary and hex update together. Built right: - Fully offline — no account, no sign-up, no tracking required. - A clean, friendly light design in apricot and teal. - Free, with the occasional ad. A single one-time purchase removes the interstitial ads — the only thing we'll ever ask you to buy. Whether you're a CS or GCSE student, a bootcamp learner, or a developer brushing up on hex and bitwise, Learn Binary turns binary and hex practice into a daily habit.