Text Summarizer
TL;DR USA articles for research in seconds. Paste 3+ word sentences, pick 3/5/8, get extractive top sentences plus compression % instantly offline with no signup with extractive sentence ranking plus length controls and keyword preservation for articles papers reports and meeting notes across research workflows plus ratio tuning and verbatim-honesty notes for analysts students adjusters doctors PMs and discovery review teams.
Summarize long text instantly with this free text summarizer, picking the most representative sentences without AI or uploads.
Calculator Inputs
About Summarize
TL;DR USA articles for research in seconds. Paste 3+ word sentences, pick 3/5/8, get extractive top sentences plus compression % instantly offline with no signup with extractive sentence ranking plus length controls and keyword preservation for articles papers reports and meeting notes across research workflows plus ratio tuning and verbatim-honesty notes for analysts students adjusters doctors PMs and discovery review teams.
Frequency scores content words, length-normalized, top N original order. No new words — faithful but choppy. Local.
Length: 3 <1k words, sqrt count rule. Shows shortened %.
Stuffing: Repetitive passages can game — known limit.
Privacy: No AI upload.
Limits: Needs 3+ word sentences.
Report triage: Austin analysts digesting $400,000 market reports extract executive cores before deep reads. Seattle PMs briefing $2M launches summarize 50-page specs into standup notes on 09/22/2026.
Study efficiency: Chicago students condensing $60,000 degree textbooks rank chapters by exam weight first. Denver doctors scanning $100,000 trials pull conclusions before methods.
Claims review: Miami adjusters reading $25,000 claim files surface damage facts buried in adjuster prose. New York lawyers reviewing $500,000 discovery rank documents by relevance sentences.
Extractive honesty: Top sentences quote the source verbatim — no hallucinations, but no synthesis either. Verify nuance in full text before citing.
Length controls: Shorter ratios suit screening; longer ones preserve argument chains. Tune per document, never one-size all.
Deal screening: Boston VCs screening $20M memo queues extract theses before partner meetings. San Francisco journalists digesting $100,000 court filings surface quotes under deadline on 09/22/2026.
Spec reading: Dallas engineers reading $800,000 API specs pull endpoint facts past marketing prose. Philadelphia professors grading $90,000 thesis stacks rank arguments before deep reads.
Inspection review: Phoenix agents reviewing $350,000 inspection reports surface defect sentences for repair addenda. Atlanta pastors condensing commentaries prep sermon outlines weekly.
Position bias: Extractive rankers favor openings — manually check conclusions for buried caveats that change meaning.
Where it is used
Students triaging papers, managers briefing reports, shoppers skimming reviews, researchers scanning news, and readers checking emphasis before deep read Austin analysts digest $400,000 market reports, Chicago students condense $60,000 textbooks, Miami adjusters read $25,000 claims, Denver doctors scan $100,000 studies, Seattle PMs brief $2M launches, and New York lawyers review $500,000 discovery Boston VCs screen $20M deal memos, San Francisco journalists digest $100,000 filings, Dallas engineers read $800,000 specs, Atlanta pastors condense $0 commentaries, Phoenix agents review $350,000 inspections, and Philadelphia professors grade $90,000 theses.
How to use the Summarize
- Text To Summarize — enter the value (e.g. Paste an article…).
- Summary Length — enter the value.
- Calculate — press the Calculate button to see the result instantly above.
Formula
split [^.!?]+ → freq content words>2 not STOP → score sum(freq)/sqrt(len) → top N original order.
Examples
Pets article
News brief
Long read
Frequently Asked Questions
- Extractive vs abstractive?
- Extractive lifts real sentences (faithful, choppy). Abstractive rewrites like a human (smooth, can hallucinate) and needs AI.
- Why did an odd sentence win?
- Frequency rewards repeated terms. Keyword-stuffed or repetitive passages can game it — a known limit of the method.
- How many sentences should I pick?
- Roughly the square root of the sentence count, or 10–20% of length. Three suits most articles under 1,000 words.
- Extractive or abstractive?
- Extractive — top source sentences quoted verbatim. No invented phrasing, but verify nuance in full text.
- Best length?
- Screening suits 10 percent; briefings suit 25 percent. Tune per document purpose.
- Stored anywhere?
- No. Summarizing runs locally in your browser. No text is uploaded or stored.