DataToolsLab
Text Tools

Text Summarizer

Summarize long text by extracting the most representative sentences.

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What is Summarize?

An extractive summarizer: it scores sentences by content-word frequency and picks the most representative ones, in their original order.

How it works

Each sentence is scored by how many high-frequency content words it contains (normalized by length), then the top N are returned in document order.

  1. Enter your input. Type or paste your input into the field above — the tool responds instantly.
  2. Review the result. Output updates live as you type. Everything runs entirely in your browser.
  3. Copy or download. Use the Copy button to grab the result, or Download to save it as a file.

Examples

Realistic sample

Paste or type any realistic input — the tool computes the result locally and instantly.

Common mistakes

Expecting a server round-trip

Nothing is uploaded — every tool in this category runs entirely in your browser.

Frequently asked questions

Is this the same as an AI summarizer?

No — this is extractive (picks real sentences) and runs locally with zero network calls. It's fast and private, but doesn't paraphrase like an LLM.

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