LibreDict — Minimalist Offline Dictionary

192,000+ words at your fingertips. No internet. No ads. No tracking. Just words.

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Features

• Fully Offline — All 192,000+ words stored locally. Works without any internet connection.
• Instant Search — FTS5 full-text search delivers results in milliseconds as you type.
• Two Built-in Dictionaries — WordNet (English) and OpenRussian (Russian-English) out of the box.
• Import Your Own — Add custom dictionaries via .json or .sqlite files.
• Zero Ads, Zero Tracking — No analytics, no telemetry, no third-party SDKs.
• Bookmarks & History — Save words and revisit recent lookups from the home screen.
• Text-to-Speech — Hear the pronunciation of any word with one tap.
• Clean, Minimalist UI — Designed to get out of your way.

Screenshots

Search	Definition	Manage

Tech Stack

Component	Technology
UI	SwiftUI (iOS 17+)
Database	SQLite via GRDB.swift
Search	FTS5 full-text search with unicode61 tokenizer
Concurrency	Swift actor + async/await
TTS	AVSpeechSynthesizer
Architecture	MVVM

Getting Started

Prerequisites

• Xcode 15.0+
• iOS 17.0+ deployment target

Build & Run

git clone https://github.com/kyukhin/dict-app.git
cd dict-app/DictApp
open DictApp.xcodeproj

Note: This repo uses Git LFS for large database files (.sqlite). Make sure Git LFS is installed (brew install git-lfs && git lfs install) before cloning, or run git lfs pull after cloning to fetch the seed database.

Select your target device or simulator and hit Run (Cmd+R). Xcode will resolve the GRDB Swift Package dependency automatically.

Rebuild the Seed Database (Optional)

The pre-built seed.sqlite is already included. To regenerate it from source:

python3 -m venv .venv
source .venv/bin/activate
pip install nltk requests
python Scripts/build_seed.py

Project Structure

LibreDict/
├── DictApp/
│   ├── DictApp.xcodeproj
│   ├── DictApp/
│   │   ├── Models/          # Data models (Entry, Bookmark, Metadata)
│   │   ├── Services/        # DatabaseService, SpeechService
│   │   ├── ViewModels/      # Search, History, Bookmarks, Definition
│   │   ├── Views/           # SwiftUI views
│   │   ├── Extensions/
│   │   └── Resources/       # Schema.sql, seed.sqlite
│   └── DictAppTests/
├── Scripts/
│   └── build_seed.py        # Downloads WordNet + OpenRussian → seed.sqlite
└── Screenshots/

Dictionary Sources

Dictionary	Language	Entries	License
WordNet 3.1	English	147,306	BSD-style (Princeton University)
OpenRussian	Russian-English	45,647	CC BY-SA 4.0

License

This project is licensed under the MIT License — see the LICENSE file for details.

Dictionary data retains its original licensing (WordNet BSD, OpenRussian CC BY-SA 4.0).