Text Summarizer (Extractive)
Automatically summarize long text by extracting the most important sentences using TF-IDF scoring. 100% private — runs in your browser, no AI API.
Text Summarizer (Extractive)
Automatically summarize long text by selecting the most important sentences using a TF-IDF scoring algorithm. 100% private — runs in your browser.
Input Text
Summary Options
How It Works
This summarizer is extractive — it does not rewrite your text. It picks the most important existing sentences using a TF-IDF (term frequency × inverse document frequency) scoring model.
- Your text is split into sentences.
- Each sentence is tokenized and common stop words are removed.
- A word-importance score is computed across the whole document.
- Sentences are scored by the sum of their word importances, normalized by length.
- The top N (or top X%) are selected, optionally re-ordered to match the original.
Privacy First: Everything runs locally in your browser. No AI API, no network requests, no data leaves your device.
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Frequently Asked Questions
What is extractive summarization?
It selects the most important sentences from your original text rather than rewriting them. We score each sentence with TF-IDF and pick the top-ranked ones, so the summary always uses your exact wording.
Does it use AI or send my text anywhere?
No. The summarizer runs entirely in your browser with a deterministic TF-IDF algorithm. No AI models, no external APIs, no network requests.
How do I control the summary length?
Choose a percentage (10/25/50/75%) or a fixed sentence count (3/5/10). Toggle Keep Original Order to preserve source flow.
Is the Text Summarizer (Extractive) free to use?
Yes, the Text Summarizer (Extractive) is 100% free with no registration, no hidden fees, and no usage limits. All processing happens locally in your browser, ensuring complete privacy.
Is my data safe with this tool?
Absolutely. The Text Summarizer (Extractive) processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.
Does the Text Summarizer (Extractive) work on mobile devices?
Yes, the Text Summarizer (Extractive) is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the Text Summarizer (Extractive) in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
Can I process large amounts of text?
Yes, the Text Summarizer (Extractive) handles text of any length with fast, real-time processing. Since everything runs in your browser, performance depends on your device but works well for most use cases.
Which browsers are supported?
The Text Summarizer (Extractive) works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
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About Text Summarizer (Extractive)
Text Summarizer (Extractive) is a free, browser-based tool in our Text Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.