Learn languages while you browse
Belugaro swaps a few words on the sites you already read into the language you're learning, matched to your level. Hover to check a word, click to hear it.
On mobile? We'll email you a link
Learn any of these 14 languages
Traditional methods don't stick
Language apps require dedicated time you don't have. Here's a better way.
How Belugaro helps you remember words
See a word in context, check it, hear it, then review it right before you'd forget it.
Learn on any website
News, blogs, Wikipedia, Reddit: a few words on each page switch to the language you're learning, so you see them in real sentences.
The gato sits on the windowsill. This gato loves to watch birds. Sometimes the gato meows loudly. At night, the gato curls up on the bed. The gato purrs contentedly in its sleep.
Watch your vocabulary grow
Your dashboard tracks every word you've met, your streak and how many you've mastered.
Your progress
Reviews at the right time
Spaced repetition brings back each word just before you'd forget it, in short daily sessions.
Daily lesson: chat
Le chat dort sur le canapé.
Hear every word
Click the speaker in any word's tooltip to hear it pronounced.
Matched to your level
Words you know fade out and new ones at your level (A1 to C2) take their place.
A little practice every time you read
Every language has the same full word list, ordered from beginner to advanced, so you never run out of new words.
Frequently asked questions
Everything you need to know about Belugaro
A browser extension that replaces words with the language you're learning as you browse. It automatically adapts to your level and tracks your progress—learn while you read.
Belugaro learns from your interactions. As you master words, it introduces more challenging vocabulary. Your dashboard shows exactly what you've learned and what's next.
Yes! Lock or unlock specific words through the extension interface or dashboard settings. You control your learning experience.
Currently available on Chrome, Edge, and other Chromium browsers. We support 14 languages including Spanish, French, German, Italian, Portuguese, Dutch, Japanese, Korean, Mandarin Chinese, Hindi, Russian, Turkish, Vietnamese, and Swedish.
Yes, Belugaro is completely free—forever. No hidden fees, no premium tiers, no credit card required.
Simply install the extension and you're ready to go. If you want to track your learning, create an account to practice and track streaks.
Ready to start learning?
Install the free extension, pick a language and keep browsing. Your first words show up on the next page you open.
Also works in Edge and Brave
On mobile? We'll email you a link