Smart Convert vs 進数・補数変換

Smart Convert converts numbers between any bases from 2 to 62 — all on one screen. Type a value and the results for your pinned bases appear instantly. Whether you're debugging hex, learning binary, or curious about base 36 and base 62, just tap a result to copy it. KEY FEATURES • One screen for everything: pick the input base, type a value, and see every result as a card • Bases 2 to 62: binary, octal, decimal and hex by default — pin any other base to add it to your results • No digit limit: arbitrary-precision math converts huge numbers (well beyond 64 bits) exactly, with no rounding • Tap to copy: tap a result card to copy it. Touch and hold to copy with separators or a prefix (0x, 0b, 0o), or to use the value as your new input • Forgiving input: paste values with prefixes like 0x, spaces or underscores as separators, or full-width digits • Fractions and negative numbers: choose 8, 16 or 32 digits for fractions that don't terminate • History: values are saved automatically — tap one to bring it back to the converter • Light & Dark themes: follow the system or choose your own • Localized in 9 languages, on iPhone and iPad DESIGNED FOR • Software engineers working with hex, binary, or unusual encodings • Computer science students learning number systems • Math enthusiasts curious about base 36, base 62, and beyond • Anyone who needs a quick, reliable converter HOW TO USE 1. Choose the input base above the input field 2. Type a value — results for your pinned bases appear instantly 3. Tap a result to copy it, or touch and hold for more options 4. Use "Add base" to pin any base from 2 to 62 Free to use, with an optional in-app purchase to remove ads. No account needed. Ads are provided by Google AdMob. On first launch, the app asks for permission to track for personalized ads — every feature works whether or not you allow it.

We have released an application that allows you to easily check decimal and complement conversions.