Topics / #japanese

Japanese projects on GitHub

Tools supporting Japanese language text processing, speech, and translation.

As of , the most-starred Japanese projects on GitHub are PDFMathTranslate (37.7K stars), LxgwWenKai (26.4K stars) and CosyVoice (24.1K stars). GitHub.Locker tracks 32 Japanese repositories with 295.4K stars combined. The fastest-growing on October 19 was jasna, with +475 stars in a day.

32Projects
295.4KStars in total
+1.3KStars in a day
Browse in the catalog →github.com/topics/japanese ↗

Hot right now

Most stars gained in a day · Oct 19

+475

jasna

Kruk2/jasna · ★ 2.9K

Jasna is a free GPU-powered app and CLI that finds mosaics (censoring blocks) in videos and images and restores the detail underneath, leaving the rest of the picture untouched.

+378

imozuru

MaryCache/imozuru · ★ 780

imozuru is a Claude Code skill that digs into an unfamiliar topic by tracing citations, links, and authors back to original sources, instead of just summarizing top search results.

+78

qingjian

qingjian-team/qingjian · ★ 6.9K

Qingjian is a pinyin input method (IME) written in Rust for macOS, Windows, and Linux. Next to each candidate word it shows a translation in a language you're learning (English, Japanese, or Spanish), so language learning happens passively while you type normally.

+61

yomiyasu

nanaism/yomiyasu · ★ 2.3K

yomiyasu is an Agent Skill that revises AI-generated Japanese text into more natural, information-dense Japanese, meant to be loaded into AI coding environments such as Codex, Claude Code, and Cursor.

The all-time top

32 projects · by stars

  1. #1 · PDFMathTranslate/PDFMathTranslate

    PDFMathTranslate

    It translates scientific PDF papers into other languages while preserving the original layout - formulas, charts, table of contents and annotations stay in place. It was accepted as a demo at EMNLP 2025.

    37.7K
  2. #2 · lxgw/LxgwWenKai

    LxgwWenKai

    LXGW WenKai (霞鹜文楷) is an open-source Chinese font derived from Fontworks' Klee One, a Japanese textbook-style typeface, extended by a solo developer with simplified and traditional Chinese characters.

    26.4K
  3. #3 · QwenAudio/CosyVoice

    CosyVoice

    CosyVoice is Alibaba's open-source, LLM-based text-to-speech system. It generates natural speech in 9 languages plus 18+ Chinese dialects, supports zero-shot voice cloning, and ships inference, training and deployment code.

    24.1K
  1. 4

    The-Art-of-Linear-Algebra

    21.8Kkenjihiranabe/The-Art-of-Linear-Algebra · PostScript

    This is a visual notebook of graphic notes that illustrate the core concepts of Gilbert Strang's book 'Linear Algebra for Everyone', covering matrix factorizations like CR, LU, QR, eigen-decomposition, and SVD.

  2. 5

    voice-changer

    21.2Kw-okada/voice-changer · Python

    It's VCClient, a real-time AI voice changer: it converts your microphone input on the fly so you can speak live with a different voice.

  3. 6

    source-han-sans

    17.4Kadobe-fonts/source-han-sans · Python

    Source Han Sans is a set of open-source Pan-CJK OpenType fonts covering Simplified Chinese, Traditional Chinese, Traditional Chinese (Hong Kong), Japanese, and Korean, plus the full source files used to build them.

  4. 7

    SMSBoom

    15.1KOpenEthan/SMSBoom · Python

    SMSBoom was a Python project, but the repository has been suspended and its code removed; all that remains is a notice saying it was taken down for judicial reasons.

  5. 8

    awesome-competitive-programming

    14.2Klnishan/awesome-competitive-programming

    A curated list of resources for competitive programming, algorithms, and data structures, covering tutorials, courses, books, practice sites, tools, and communities.

  6. 9

    LunaTranslator

    13.8KHIllya51/LunaTranslator · C++

    LunaTranslator is a Windows desktop tool that extracts text from visual novels and galgames in real time (mainly via text hooking) and translates it, so you can play untranslated Japanese games.

  7. 10

    solved-by-flexbox

    12.9Kphilipwalton/solved-by-flexbox · CSS

    A showcase site demonstrating CSS layout problems that used to be hard or impossible with plain CSS, and showing how Flexbox solves them trivially.

  8. 11

    Sarasa-Gothic

    12.9Kbe5invis/Sarasa-Gothic · JavaScript

    Sarasa Gothic is a CJK composite font that merges Inter (Latin/Greek/Cyrillic), Iosevka (for the Mono/Term/Fixed variants) and Source Han Sans (CJK glyphs) into a single unified gothic/sans-serif typeface covering Chinese, Japanese and Korean alongside Latin text.

  9. 12

    babel-handbook

    12.1Kjamiebuilds/babel-handbook

    A guided handbook explaining how to use Babel and how to write plugins for Babel, the JavaScript compiler.

  10. 13

    Kami

    12Ktw93/Kami · HTML

    Kami is an agent skill that gives AI coding agents (Claude Code, Codex, Cursor, etc.) templates and layout rules to turn plain requests into polished documents and landing pages — PDFs, PNGs, or editable PowerPoint slides.

  11. 14

    RunCat365

    10.3Kruncat-dev/RunCat365 · C#

    RunCat 365 is a cute running cat animation that lives in your Windows taskbar, where the cat's running speed reflects your system's CPU usage.

  12. 15

    read-frog

    10.1Kmengxi-ream/read-frog · TypeScript

    Read Frog is an open-source browser extension that provides AI-powered translation and language learning while you browse: it translates web pages, article subtitles, and selected text, and turns what you read into flashcards for study.

  13. 16

    qingjian

    6.9Kqingjian-team/qingjian · Rust

    Qingjian is a pinyin input method (IME) written in Rust for macOS, Windows, and Linux. Next to each candidate word it shows a translation in a language you're learning (English, Japanese, or Spanish), so language learning happens passively while you type normally.

  14. 17

    koharu

    6.4Kkoharu-rs/koharu · Rust

    Koharu is an ML-powered manga translator written in Rust that combines object detection, OCR, inpainting, and LLMs to automate translating manga pages while running everything locally.

  15. 18

    msime-windows

    3Kmetasequoiaime/msime-windows · C++

    Metasequoia IME (水杉输入法) is a free, open-source Windows input method for Chinese and Japanese, built entirely on the TSF (Text Services Framework) architecture.

  16. 19

    mozc-devices

    3Kgoogle/mozc-devices · C++

    A collection of circuit diagrams and firmware source code for Google's quirky, often absurd DIY keyboards, most of which started out as April Fools' Day gags for Google Japanese Input and later Gboard (e.g. a Morse-code keyboard, a drum-set keyboard, a spoon that bends to type).

  17. 20

    jasna

    2.9KKruk2/jasna · Python

    Jasna is a free GPU-powered app and CLI that finds mosaics (censoring blocks) in videos and images and restores the detail underneath, leaving the rest of the picture untouched.

  18. 21

    yomiyasu

    2.3Knanaism/yomiyasu · Python

    yomiyasu is an Agent Skill that revises AI-generated Japanese text into more natural, information-dense Japanese, meant to be loaded into AI coding environments such as Codex, Claude Code, and Cursor.

  19. 22

    JIZURA

    2K852wa/JIZURA · HTML

    JIZURA is a browser app that turns lyrics into an automatically assembled kinetic typography music video, combining layout, motion and decoration presets from a library of hundreds of parts, then exports the result as an MP4.

  20. 23

    natural-japanese

    1.9Kcoji/natural-japanese · Python

    An Agent Skill for writing and revising clear, natural Japanese for work documents — meeting minutes, reports, internal guides, proposals, blog posts. Its whole point is stripping the telltale 'AI smell' from machine-written prose.

  21. 24

    Semiconductor_Manufacturing_Introduction

    1.2Kchenwei810/Semiconductor_Manufacturing_Introduction · Python

    An open, beginner-friendly book that follows one silicon wafer from sand, through the fab, test and packaging, until it becomes a chip. It focuses on process flow, terminology and fab know-how rather than heavy physics.

  22. 25

    Meltype

    1.2Kyksr-melt/Meltype · C#

    Meltype is a Windows tray tool that lets you type Japanese and English in the same sentence using plain romaji, without pressing the half-width/full-width key to switch input modes.

  23. 26

    imozuru

    780MaryCache/imozuru · Python

    imozuru is a Claude Code skill that digs into an unfamiliar topic by tracing citations, links, and authors back to original sources, instead of just summarizing top search results.

  24. 27

    hayamimi

    447oboroge0/hayamimi · Python

    hayamimi is a real-time, multilingual speech-to-text tool that runs entirely on CPU, giving you live subtitles, a browser dashboard, speaker labels, and on-the-fly translation without a GPU or cloud API.

  25. 28

    awesome-grok-bot

    434RongleCat/awesome-grok-bot · Python

    A curated, bilingual (English/Chinese/Japanese) list of resources about Grok Bot, an always-on AI teammate from xAI/SpaceXAI built with Cursor that runs on its own persistent cloud computer.

  26. 29

    dopa-drill

    246grmchn/dopa-drill · JavaScript

    A browser-only math drill game ('Dopadrill') where the visual effects and music keep escalating with every correct answer. A mascot named Dopakichi carries your typed numbers and celebrates each correct result, building toward a festival-like finale.

  27. 30

    wutw-public

    242max99x/wutw-public · GDScript

    The complete public domain release of Worlds Upon The Wind, a peaceful roguelite deckbuilder sold on Steam, where you resettle the shards of a shattered world. The repo contains the full Godot project, source code, and art assets.

  28. 31

    pokemonlive

    156xflare-bot/pokemonlive · JavaScript

    A local, non-commercial prototype where a pure JavaScript rules engine resolves turn-based Pokemon battles while AI generates a continuous anime-style 2D battle video on the fly.

  29. 32

    rimochan-nyamuru-manga-forge

    132sa-san10/rimochan-nyamuru-manga-forge · Shell

    A Claude Code skill that turns a natural-language request into finished manga pages. It pipelines storyboard design, drawing, collection, inspection, and delivery into one flow.

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