https://github.com/wpexpertinbd/bangla-keyboard

Free, open-source Bijoy-style Bangla keyboard for macOS, Windows & Linux — one shared reorder engine, three native shells. macOS shipping; Windows/Linux in progress.
https://github.com/wpexpertinbd/bangla-keyboard

bangla bangla-fonts bangla-keyboard bengali bengali-typing cross-platform ibus keyboard keyboard-layout linux mac macos tsf unicode windows

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Free, open-source Bijoy-style Bangla keyboard for macOS, Windows & Linux — one shared reorder engine, three native shells. macOS shipping; Windows/Linux in progress.

• Host: GitHub
• URL: https://github.com/wpexpertinbd/bangla-keyboard
• Owner: wpexpertinbd
• License: mit
• Created: 2026-06-23T13:52:37.000Z (7 days ago)
• Default Branch: main
• Last Pushed: 2026-06-28T21:30:00.000Z (1 day ago)
• Last Synced: 2026-06-28T22:25:18.584Z (1 day ago)
• Topics: bangla, bangla-fonts, bangla-keyboard, bengali, bengali-typing, cross-platform, ibus, keyboard, keyboard-layout, linux, mac, macos, tsf, unicode, windows
• Language: C
• Size: 2.59 MB
• Stars: 21
• Watchers: 0
• Forks: 7
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Security: SECURITY.md

Awesome Lists containing this project

README

          
Bangla Keyboard




  A free, open-source fixed-layout Bangla keyboard for macOS, Windows, and Linux.


  Type a prebase vowel before its consonant (the Windows-order habit) and get correct Unicode order.


  No trademarked branding, no proprietary fonts — emits standard Unicode.



Built and maintained by BiswasHost 🇧🇩


---

## Platforms

| OS | What it is | Status | Folder |

|----|-----------|--------|--------|

| 🍎 **macOS** | Native `.keylayout` (Unicode + Classic) + smart installer `.pkg`/`.dmg` | ✅ **shipping** | [`macos/`](macos/) |

| 🪟 **Windows** | Tray app (Bangla Unicode + Classic) running the shared engine, + a TSF IME | ✅ **v1.0.0** | [`windows/`](windows/) |

| 🐧 **Linux** | IBus / Fcitx5 engine running the shared engine | ⬜ planned | [`linux/`](linux/) |

**macOS users:** grab the latest `.pkg`/`.dmg` from [**Releases**](../../releases) and see

[`macos/README.md`](macos/README.md).

## How it works — one engine, three thin shells

The value of this keyboard is **syllable reordering** (so `ে`+`ক`→`কে`, `ভ া স র্ ন`→`ভার্সন`,

`ি ক ্ ষ`→`ক্ষি`). A static OS layout can't do that; it needs a tiny stateful engine. So all

three platforms share **one engine** and wrap it in a thin OS-specific shell:

- **[`SPEC.md`](SPEC.md)** — the OS-neutral specification: keymap, algorithm, and the test

  corpus every port must pass. **The contract.**

- **[`engine/`](engine/)** — the canonical reference engine (`Engine.swift`, ~170 lines, verified).

  Each port reimplements this in its platform's language.

> Porting to a new OS? Read [`SPEC.md`](SPEC.md), port [`engine/Engine.swift`](engine/Engine.swift)

> headless first, pass the §7 tests, then wire the OS shell. Don't hand-port the macOS

> deadkey `.keylayout` — the engine is the clean model.

## Repository layout

```

.

├── SPEC.md          # shared engine spec — the contract for all ports

├── engine/          # canonical reference engine (Engine.swift) + notes

├── macos/           # shipping macOS build (.keylayout + installer)

├── windows/         # Windows TSF IME (in progress)

├── linux/           # Linux IBus/Fcitx engine (planned)

├── LICENSE          # MIT

├── DISCLAIMER.md    # not affiliated with any commercial keyboard/font vendor

└── SECURITY.md

```

## License

MIT — see [`LICENSE`](LICENSE). De-branded; not affiliated with any commercial Bangla

keyboard or font vendor — see [`DISCLAIMER.md`](DISCLAIMER.md).

Made with care by BiswasHost 🇧🇩