CharCode Converter

CharCode Converter is a lightweight utility for developers, ROM hackers, and fan translators working with Japanese text encodings. Enter raw hex codes and instantly see the corresponding characters — or type any text and get its byte representation. Two modes, one tool. ── MODES CODE → CHAR Enter hex bytes using the built-in keypad and decode them into characters in real time. Each byte group is displayed alongside its decoded character, so you can inspect multi-byte sequences at a glance. CHAR → CODE Type or paste any text and get the full hex byte sequence for each character. Useful for building search strings or patching ROM data. ── SUPPORTED ENCODINGS • Shift_JIS — the native encoding of PC-98 games and most retro Japanese software • EUC-JP — common on Unix-based Japanese systems • JIS X 0201 — single-byte katakana, used natively on PC-88 and Sharp X1 (no escape sequences) • UTF-8 — modern standard • UTF-16 — BE and LE variants ── DISPLAY BASE Switch between hexadecimal, decimal, octal, and binary display for all byte values — handy when cross-referencing assembly listings or hardware documentation. ── TYPICAL USE CASES • ROM hacking and fan translation of PC-98, PC-88, Sharp X1 games • Identifying the encoding of an unknown text dump • Building Shift_JIS search strings for hex editors • Debugging text rendering issues in legacy Japanese software • Learning how multi-byte encodings like Shift_JIS actually work at the byte level ── PRIVACY No data collection. No internet access. No accounts. Everything runs locally on your device. See the full privacy policy for details. ── THANKS This app is inspired by JojoAGogogo's no longer available app. I used it a lot while translating my first PC-98 game. I missed it to much that I made my own, free like JojoAGogogo's one