Russian text difficulty checker
Paste any Russian text here and Beeblio will show you exactly how much of it sits within your current vocabulary. Every word is matched against frequency data from the wordfreq corpus and sorted into bands — the 300 most common Russian words, then the 800, 1,500, 3,000, 5,000, 8,000, and 12,000 most common — so you can see at a glance whether a news article, short story, or song lyric is comfortably within reach or still a stretch.
The checker highlights new words you haven't met yet and flags the rare ones that even advanced learners seldom encounter. That gives you two useful numbers: how much of the text you can likely read on autopilot, and how many unfamiliar words you'd need to look up. As a rough guide, the 1,500 most frequent Russian words cover around 80% of everyday text, so knowing which band a piece falls into tells you a lot about whether it's good comprehensible-input material for you right now.
There's nothing to install and no account required. Paste your text, read the breakdown, and decide whether to dive in or come back to it once your vocabulary has grown a little further.
How it works
Paste a text in Russian (up to 6,000 characters). Every word is looked up in a frequency list; for each band — the top 300, 800, 1,500, 3,000, 5,000, 8,000 and 12,000 words — you see the share of the text a learner at that band already knows. Comprehensible reading sits around 95–98% known: we call ≥97% easy, 92–97% just right, 85–92% hard, and below that too hard.
You also get the new words worth learning (unknown but common, in frequency order) and the rare words — names, jargon, typos — that no learner should stop for.
Questions
How does Beeblio decide which frequency band a Russian word belongs to?
Each word is looked up in the wordfreq corpus, a large multilingual dataset built from subtitles, news, and web text. Its rank in that corpus determines which band it falls into — 300, 800, 1,500, 3,000, 5,000, 8,000, or 12,000 most common words. Words that don't appear in the corpus at all are shown as "rare".
Does the checker handle Russian word forms, or do I need to use the dictionary form?
Just paste natural Russian text as-is. Beeblio lemmatizes each word automatically, so verb conjugations, noun cases, and adjective endings are all mapped back to their base form before the frequency lookup. You don't need to do any manual conversion.
What's a good difficulty level to aim for when choosing a text to read?
Most learners find a text comfortable when they already know around 95–98% of its words, because context can carry the rest. If the checker shows that a large share of words fall outside your current band, the text might be better saved for later — or used with a dictionary close at hand for more intensive study.