BaseShift: Number Converter

BaseShift turns number base conversion into something you can touch.

Turn the metallic dial until the arrow points to the base of your number, type it in the center and instantly see it in binary, octal, decimal and hexadecimal.

★ CONVERTER WITH A ROTARY DIAL
• Binary (2), octal (8), decimal (10) and hexadecimal (16), updated as you type
• Integers of any size, with digits grouped for readability
• Copy any result with a tap

★ EXERCISES THAT START WITH A SPIN
• Choose the level (easy, medium, hard) and the starting base
• Spin the dial with your finger: after 4 seconds it stops on the target base and creates the exercise
• Instant check, score and session summary
• Wrong answer? See the procedure step by step: place values, repeated division, bit grouping
• Statistics on accuracy, best streak and the conversions to improve

★ 13 CONVERSION TOOLS
• ASCII / Unicode: text ↔ codes in UTF-8, UTF-16 and Latin-1
• Gray code and BCD (packed, unpacked, excess-3)
• Two's complement, one's complement and sign-magnitude
• Signed and unsigned integer formats, big-endian and little-endian bytes
• IEEE 754 floating point (32 and 64 bit) with sign, exponent, mantissa and rounding error
• Base64, Base32 and Base58, for text and files
• Bitwise operations: AND, OR, XOR, NOT, shifts and rotations
• Any base from 2 to 36

★ REPRESENTATIONS
Tap the bits of an interactive board and see how the same pattern is read as unsigned, two's complement, one's complement, sign-magnitude, excess-K, BCD, Gray code and ASCII.

★ NETWORKS
IPv4 decimal ↔ binary, subnet calculator (CIDR, mask, wildcard, hosts), IPv6 expansion and compression, MAC address formats and EUI-64.

★ RESPECTFUL BY DESIGN
• No ads, no in-app purchases, no account
• No data collected: the app does not even have the internet permission
• Your exercises stay on your phone
• Light and dark theme
• Available in English, Italian, French, German and Spanish

Ideal for computer science, electronics and telecommunications students, for teachers who want a practice tool for the classroom and for developers who need a quick, reliable converter.