OpenMDict icon
OpenMDict icon

OpenMDict

Open-source iOS dictionary reader supports simultaneous multi-dictionary viewing with columns, grid, and list modes, pop-up lookups from any app, jump search within definitions, unlimited imports and groups, iCloud sync, curated dictionaries, and no ads or paid tiers.

OpenMDict screenshot 1

Cost / License

  • Free
  • Open Source

Application type

Platforms

  • iPhone
  • iPad
OpenMDict screenshot 1
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OpenMDict information

  • Developed by

    Han Yin

  • Licensing

    Open Source and Free product.

  • Alternatives

    6 alternatives listed

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  • Supported Languages

    • English
    • Arabic
    • Chinese
    • French
    • German
    • Hindi
    • Japanese
    • Korean
    • Portuguese
    • Russian
    • Spanish
    • Ukrainian

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Official Links

AppStores & Other Links

Download from iPhone App Store

What is OpenMDict?

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.

RESET 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