Koboshi

Beside Duolingo

Keep Duolingo.
Build your language knowledge base.

Learn with Duolingo and any app you like. Koboshi keeps the words, in every language you speak.

Duolingo
YouTube
ChatGPT
Screenshots
save the words that matter
Koboshi your language knowledge base

Save from anywhere

Type it, screenshot it, or send it from your AI.

Type or paste

One search builds the whole card: meaning, example, pronunciation.

Screenshot

Upload a screenshot, tap the words you want, and they are saved.

Coming soon

From your AI tools

Save a word from Claude or ChatGPT without leaving the conversation.

Import a list

Bring words in from Anki, a spreadsheet, or a plain text file.

Koboshi Language Knowledge Base

A dictionary holds everything a language knows. Your knowledge base holds what you know.

Build your personal vocabulary and language knowledge base. Explore words, meanings, grammar, pronunciation, examples and connections across languages.

Questions

Common questions.

What is a language knowledge base?

Your personal record of the words you know: each word with its meanings, examples, pronunciation, the same idea in your other languages, and how well you remember it. A dictionary covers a language; a knowledge base covers you.

Should I quit Duolingo for this?

No. Duolingo teaches the course. Koboshi keeps the words you meet everywhere, including there.

Does Koboshi import from Duolingo?

Duolingo has no export, so you save a word as you meet it, in seconds. Lists from ChatGPT, Anki or a spreadsheet import directly.

I finished the course. Now what?

Vocabulary becomes the main wall. See the B1-B2 vocabulary page.

Keep your streak. Keep your words too.

Save the words that stand out, and let Koboshi bring them back.