Animated sprite editor & pixel art tool (Windows, macOS, Linux)

Sarasa Gothic / 更纱黑体 / 更紗黑體 / 更紗ゴシック / 사라사 고딕

SFMono Square - patched font: SFMono + Migu 1M + Nerd Fonts

Pop-up dictionary browser extension. Successor to Yomichan.

Mozc - a Japanese Input Method Editor designed for multi-platform

Ren'Py extension for Visual Studio Code

Dataset and search tool for Japanese onomatopoeia and sound effects

An open source riichi mahjong client

modifications and improvements for 0CC-FamiTracker (based on j0CC-FamiTracker 0.6.3)

Extension of jsr's FamiTracker

Open source stenotype engine

NovelGame framework by WebGL(PixiJS)

Source for NomNaTong-regular Vietnamese chữ Nôm font.

Source Han Serif | 思源宋体 | 思源宋體 | 思源宋體 香港 | 源ノ明朝 | 본명조

Variation Selector Selector app (WIP)

Hentaigana Editing Tools and Input Method for Emacs.

The graphical KAGE glyph editor

漢文JavaScript

Adobe Font Development Kit for OpenType

Text Layout Requirements for Japanese

Japanese language data on kanji, radicals, media files, fonts and related resources from Kanji alive

Various data for Ideographs

様々な漢字表のデータベース

Database for various Ideographic Variants Data

IDS data for CJK Unified Ideographs

Hanazono Mincho Font created by AFDKO.

Classical Chinese to Modern Japanese Translator

You can decrypt whole RPG-Maker MV Directories with this Program, it also has a GUI.

Free (libre) font editor for Windows, Mac OS X and GNU+Linux