Open Dict · Features
A closer look at every word.
Read original dictionary entries, compare sources, ask for a different explanation, and save what you want to remember.
Your dictionaries, together
Import open-source, free, community and personal dictionaries. Search locally, even offline.
The free version supports up to 5 dictionaries, with no other feature restrictions or time limit. A one-time purchase removes the dictionary limit permanently. Open Dict has no subscription.
Help →
AI definitions, your way
Use your own API key and choose a model. Start with built-in prompts or create concise definitions, learner explanations and multilingual examples.
Why bring your own API key? →

Original layouts, light or dark
Keep rich dictionary layouts, examples and images across MDX, MOBI, StarDict and dictd. Play MDD audio and adapt entries to dark mode.


One search, multiple dictionaries
Search prefixes, contained text or phrases across your library. Switch dictionaries to compare definitions and examples.

Keep the sentence that matters
Highlight examples and add your own notes inside an entry. Revisit saved passages and return to the original definition.
Help →
Look up here, review anywhere
History, word groups, notes and AI configuration stay with you through your personal iCloud account.

Mac
A lookup away from your work.
Open the quick lookup window from the Mac menu bar, or select text in another app and use the system service to look it up in Open Dict.
Help →Universal App · Mac / iPad / iPhone
One purchase. Mac, iPad, iPhone.
Permanently unlock unlimited dictionaries with one purchase. Your purchase works on Mac, iPad and iPhone with the same Apple Account. No subscription.