Coders Friend

iPhone / Education

Coder's Friend is a native iOS toolkit built for developers, engineers, and anyone who works with numbers, bits, and data at a low level.

Fast, focused, and designed to grow with your needs.

PROGRAMMER'S CALCULATOR
- Convert instantly between Decimal, Hexadecimal, Binary, Octal, and ASCII
- Bitwise operations: AND, OR, XOR, NOT, shift left/right
- Adaptive keypad — only shows keys valid for the selected number system
- Two's complement and sign toggle support

BIT TOGGLE
- Visual bit manipulation for 8, 16, 32, and 64-bit values
- Tap any bit to flip it — all representations update in real time
- Signed and unsigned decimal interpretation
- Byte-level view with per-byte hex display
- Endianness swap between Big Endian and Little Endian
- Mathematically correct across the full 64-bit range

DESIGNED FOR YOUR WORKFLOW
- Calculation history with one-tap copy
- Values stay in sync across all tools
- Native iOS 26 design with Liquid Glass
- Dark mode optimized
- Localized in English and German

BUILT TO GROW
Coder's Friend is actively developed. New tools and features are on the roadmap — from data inspection to protocol analysis and beyond. Your feedback shapes what comes next.

Whether you're debugging firmware, inspecting network packets, or just need a reliable hex converter in your pocket — Coder's Friend is the companion you've been looking for.