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Dev tools · August 28, 2026

Sanoja — Read Words in Finnish

Learn Finnish vocabulary as you browse the web

What it does

Sanoja turns the pages you're already reading into Finnish practice. Select or double-click any word on any webpage — English shows you Finnish, Finnish shows you English, detected automatically. Hear it pronounced, and every word you look up is saved into a spaced-repetition word list so it actually sticks, with mastered words graduating into a separate "known" list. No separate app, no tab-switching — just the page you're already on. Free, open source, no account, no ads, no tracking.

Sanoja is a Finnish translator and dictionary extension: select or double-click any word on the web to translate English ↔ Finnish, hear it, and review it later with spaced repetition. Free, no account, no tracking.

Select or double-click any word on the web. Sanoja translates it between English and Finnish, reads it aloud, and saves it so you can review it later — for free, with no account and no tracking. Vocabulary that shows up while you're already reading something you care about sticks a lot better than a word list. Select an English word and see it in Finnish, or a Finnish word and see it in English — detected automatically, no language picker. Click the speaker icon to hear the Finnish pronunciation, using your browser's own text-to-speech — always the Finnish side, since that's the point. Every word you look up is saved automatically. A Leitner-box quiz brings words back at increasing…from sanoja-app.github.io

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