Open Dict: Dictionary & AI
MDX/MOBI/StarDict/dictd Lookup
Only for Mac
Free · In‑App Purchases
Mac
Import your own dictionaries. Original layouts, dark mode and custom AI prompts. Highlight, take notes and sync via iCloud across iPhone, iPad and Mac.
Open Dict: Local dictionaries + custom AI
Import your own dictionaries for offline lookup. Use built-in AI prompts or create your own definition style. Read original dictionary layouts, highlight examples and review your notes across iPhone, iPad and Mac.
Your dictionaries, together
Import MDX/MDD, MOBI, StarDict, dictd, TXT and TSV files. Choose from open-source, free, community-made and personal dictionaries. Imported local dictionaries work offline.
Search across your library
Find prefixes, matching text and phrases across your dictionaries. See results grouped by dictionary, then switch quickly to compare definitions, examples and collocations.
Original layouts and dark mode
Read dictionary formatting, images and examples, with support for MDD pronunciation resources. Definitions adapt to dark mode, with an option to keep each dictionary's original colors. Adjust reading size and find text within entries.
AI definitions, your way
Bring your own API key and choose your model and definition language. Start with built-in prompts for concise meanings or detailed learner explanations, or create prompts for multilingual examples, synonym comparisons and more.
Supports DeepSeek, Kimi, Zhipu GLM, Claude, Gemini and custom APIs.
Highlights and notes
Highlight useful sentences and add your own notes. Organize saved words into groups, assign star ratings and return to the original passage when reviewing.
Sync with your personal iCloud
Keep lookup history, vocabulary groups, notes and AI settings in sync across iPhone, iPad and Mac using the same personal iCloud account.
Quick lookup on Mac
Look up words from the menu bar, or select text in another app and open it in Open Dict through macOS Services.
Free to use, with a one-time unlock
The free version supports 5 dictionaries. A one-time purchase permanently removes the dictionary limit, with no subscription. Buy once and use on iPhone, iPad and Mac with the same Apple Account.
Terms of Use
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Added Markdown note editing and preview, with headings, lists, quotes, bold text, undo and redo
• Improved highlight and note details with expanded editing, longer passage previews, and better draft-saving and dismissal behavior
• Added quick delete controls and swipe actions for notes or entire highlights with their notes, with confirmation before deletion; fixed lingering highlights after deletion
• Added drag-and-drop batch import for dictionary files and folders, with companion-file matching, duplicate detection, and placement at the drop location
• Improved TSV and StarDict compatibility with headword aliases, HTML definitions, and multiple definitions for the same word
• Improved background indexing and cache handling, with clearer progress and status displays and more stable dictionary lists
• Refined Mac menu bar lookup, window pinning, keyboard shortcuts, and window restoration; updated the menu bar icon
• Improved history, purchase screens, and localization; corrected the free tier's five-dictionary limit while preserving existing dictionaries
The developer, 军 黄, 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
- Seller
- 军 黄
- Size
- 5.3 MB
- Category
- Reference
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
English and 7 more
- English, French, German, Japanese, Polish, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Unlimited Dictionaries - Universal $9.99
- Copyright
- © 2026, KMate Team