JA Tool

Kanji Modernizer: Guide

Convert Kyūjitai ↔ Shinjitai using a local, dictionary-based approach.

What it does

Convert old-form kanji (Kyūjitai) → modern kanji (Shinjitai)
Optional reverse: modern → old (if supported)
Useful for names, places, old documents, and normalization
Fully local processing, no storage

Open the tool 日本語ガイド

Use this when

You need a modern spelling for old kanji in forms or documents
You want searchable text from scanned/old materials
You want consistent kanji forms for indexing

Keywords: kyujitai to shinjitai, old kanji converter, Japanese kanji normalization

How to use

Paste your text
Select direction (old→modern / modern→old)
Copy the output

Tip: for proper nouns, verify against the source document.

Notes (limits)

Rare variants not in the dictionary may not convert.
Some characters are context-dependent (names/places).
For official procedures, always prioritize the original/official spelling.