OpenMDict
The Definitive MDict Reader
Free · Designed for iPad. Not verified for macOS.
The ultimate MDict reader you deserve:
Unlimited dict imports & user groups, iCloud sync,
Pop-up lookup, Multi-article layouts, Multi-window, keyboard shortcuts
OpenMDict is a free, open-source MDict (.mdx/.mdd) dictionary reader for iPhone and iPad.
► THREE LAYOUT MODES & MULTI-WINDOW ON iPadOS
- View definitions from multiple dictionaries simultaneously in Columns, Grid, or List layout — compare and cross-reference at a glance.
- Desktop-class productivity with multiple windows and 30+ keyboard shortcuts.
► POP-UP LOOKUP & JUMP SEARCH
- Look up words from any app via the Action Extension pop-up.
- Keep jump-searching unfamiliar terms within definitions until every word is clear.
► iCLOUD SYNC & UNLIMITED GROUPS
- Dictionaries, bookmarks, history, and lookup counts sync across all your devices
- Import unlimited dictionaries, create unlimited groups, no subscriptions, no ads, no paid tiers.
► PRESET DICTS INCLUDED & DARK ENHANCEMENTS
- Choose from 65 curated open-source dictionaries (WordNet, JMdict, CC-CEDICT, and more) — download and start using immediately.
- Enhance third-party dictionaries' readability in dark mode, with 7 levels of adjustable brightness per dictionary.
MORE FEATURES
• Full MDict format support: V1 (LZO), V2 (zlib), MDD resources, obfuscated dictionaries
• Lemma-aware search — finds base forms and inflected variants automatically
• Siri Shortcuts, Spotlight search, Quick Actions, Share Extension, Drag & Drop
• 13 languages: English, 简体中文, 繁體中文, 日本語, 한국어, Español, Deutsch, Français, Português (BR), Русский, Українська, العربية, हिन्दी
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
1. Fixed the GPU acceleration bug during article content indexing
2. Minor performance optimizations on Action Extension UI
The developer, Han Yin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Han Yin
- Size
- 86.5 MB
- Category
- Reference
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 12 more
- English, Arabic, French, German, Hindi, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, Ukrainian
- Age Rating
4+
- 4+
- Copyright
- © Han Yin