Sanoja - Finnish Translator & Dictionary

Finnish translator & dictionary: select any word on the web to translate English ↔ Finnish, hear it, and review with flashcards.

Sanoja is a Finnish translator and dictionary that turns the pages you're already reading into Finnish vocabulary practice. Select or double-click a word or short phrase on any webpage. If it's English, you'll see it in Finnish; if it's Finnish, you'll see it in English — detected automatically, no language picker needed. Click the speaker icon to hear the Finnish pronunciation. Every word you look up is saved automatically into a word log, so you can come back and actually learn it instead of just glancing at a translation and moving on: 1. Spaced-repetition quiz (a Leitner box system) — get a word right and it comes back in a few days, then a week, then a couple weeks, then a month; get it wrong and it comes back tomorrow. 2. Get a word right consistently and it graduates to a known words section, separate from what you're still actively learning. 3. A word list and word-cloud view of everything you've saved, searchable and sortable. 4. A daily streak for finishing your reviews. No accounts, no ads, no tracking. Your word list and progress are saved locally in your browser and never leave your computer — the only network request Sanoja makes is the translation lookup itself, and only for text you explicitly select. Built for one language pair on purpose: English and Finnish, both directions, nothing else.