📝 Text Summarizer

How a sentence earns its place

Every word is counted first, ignoring about seventy stopwords (the, is, with) and anything under three letters. Each sentence is then scored:

            sum of the counts of its content words
score  =  ------------------------------------------
              number of words in the sentence

Repetition is the whole signal: a word used four times lends weight to all four sentences it appears in. The highest scorers are put back in their original order and joined, so the summary still reads forwards. Nothing is rewritten - every sentence is yours, verbatim.

The divisor matters. In the sample text longer appears twice, enough to score the six-word opening sentence a perfect 1.00 and put it above the 0.75 of the long sentence that explains what the tool does.

When it works, and when it does not

• Feed it several paragraphs on one subject. On mixed topics, or on fewer than six or seven sentences, most of the input comes straight back.
• Short sentences are favoured. Headings, captions and one-liners pasted in with the prose tend to outrank the paragraphs.
• Only ASCII letters and apostrophes count as words. Figures score nothing, and Greek, Cyrillic or CJK text registers no words at all - you get the first few sentences back instead of a summary.
• Sentences end at . ! or ?, so Dr. or a decimal point splits one sentence into two fragments that are then ranked separately.

Frequently asked questions