How does the algorithm work?

RAKE (Rapid Automatic Keyword Extraction) splits text on stop words and punctuation, scores each candidate phrase by word frequency and degree of co-occurrence, then ranks the top phrases.

Is anything uploaded?

No. Tokenization and scoring run entirely in your browser. Your text never leaves your device.

Will it work on Chinese or Japanese?

The bundled stop-word list is English. Latin-script languages work well; CJK input needs word segmentation we plan to add.

Keyword Extractor — RAKE & TF-IDF in Your Browser

Keyword Extractor

Paste text and get the top keywords and key phrases.

100% client-side

Input text

Top N keywords

Idle.

How to use

Paste an article, transcript, or notes.
Set how many top keywords to return.
Click Extract.

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よくある質問

How does the algorithm work?: RAKE (Rapid Automatic Keyword Extraction) splits text on stop words and punctuation, scores each candidate phrase by word frequency and degree of co-occurrence, then ranks the top phrases.
Is anything uploaded?: No. Tokenization and scoring run entirely in your browser. Your text never leaves your device.
Will it work on Chinese or Japanese?: The bundled stop-word list is English. Latin-script languages work well; CJK input needs word segmentation we plan to add.