Open Dict: Dictionary & AI

MDX/MOBI/StarDict/dictd Lookup

Only for Mac

Free · In‑App Purchases

Mac

Import local dictionaries, compare entries in one page, and look up copied text in a compact Mac window. Customize AI definitions and sync notes across your devices. OpenDict: Local dictionaries + custom AI Import your own dictionaries for offline lookup. Compare definitions, customize AI explanations, highlight passages and review notes across Mac, iPhone and iPad. Your dictionaries, together Import MDX/MDD, MOBI, StarDict, dictd, TXT and TSV files, including open-source, community-made and personal dictionaries. Drag files or folders into the app to import multiple dictionaries. Imported local dictionaries work offline. Search and read your way Find prefixes, matching text and phrases across your library. Switch between dictionary tabs or use the collapsible single-page view to read several dictionaries together. Adjust how many dictionaries expand by default, find text within entries and return to your reading position. 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 the reading size to suit your screen. AI definitions, your way Bring your own API key and choose your model and definition language. Use built-in prompts for concise meanings or learner explanations, or create prompts for multilingual examples and synonym comparisons. Supports DeepSeek, Kimi, Zhipu GLM, Claude, Gemini and custom APIs. AI features require a connection to your configured provider. Highlights and notes Highlight useful passages and add Markdown notes. Organize saved words into groups, assign star ratings and return to the original passage when reviewing. On Mac, use Command-T to highlight selected text and Command-E to add a note. Quick lookup on Mac Look up text from the menu bar or through macOS Services. Enable clipboard lookup to look up copied text, with an option to trigger only after copying the same text twice. Pin, move or resize the lookup window, dock it beneath the menu bar, and switch between the lookup window and main window while keeping your reading context. Sync with your personal iCloud Keep lookup history, vocabulary groups, notes and AI settings in sync across Mac, iPhone and iPad using the same personal iCloud account. Dictionary capacity The app supports up to 5 dictionaries before unlocking. A one-time in-app purchase permanently removes this limit, with no subscription. The unlock works across Mac, iPhone and iPad with the same Apple Account. Third-party AI services are separate and may charge for API usage. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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New Features • Clipboard lookup: look up copied text automatically, or trigger lookup by copying the same text twice. Toggle it from the menu bar or with Control-Option-C. • A collapsible single-page dictionary view lets you read multiple dictionaries together and choose how many expand by default. • Added Command-T to highlight selected text and Command-E to add a note, with expanded Mac menu commands. Improvements • Refined the quick lookup window with pinning, menu bar docking, docking previews and edge resizing. • Switch between the main window and lookup window while keeping the current word, dictionary, reading position and editing state. • Improved on-demand dictionary loading, reading controls, history deletion and multilingual text. Fixes • Fixed focus issues in text search and quick lookup, and window size jumps when reopening the lookup window. • Fixed AI dictionary queries and status display in the single-page view. • Fixed phrase lookup restrictions and cases where built-in prompts could disappear after syncing.

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.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer indicated that this app supports the following accessibility features. Learn More

    • Supported Features

      • Dark Interface

      • Sufficient Contrast

      • Reduced Motion

    Seller
    军 黄
    Size
    5.8 MB
    Category
    Reference
    Compatibility
    Requires macOS 14.0 or later.
    • Mac
      Requires macOS 14.0 or later.
    Languages
    English and 11 more
    • English, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026, KMate Team