Extractive summarization that picks the most important sentences from any text
Text Tools
About This Tool
The Text Summarizer condenses long articles, reports and notes into their most important sentences. It uses extractive summarization — no AI service involved — scoring each sentence by word frequency, key-term density and position, then presenting the best ones in their original order. Everything runs locally in your browser.
Key Features
- Extractive summarization with frequency and position scoring
- Adjustable number of summary sentences via slider
- Works with English and Chinese text
- Instant statistics: sentences, words, characters and compression ratio
- One-click copy of the final summary
- 100% offline — content never leaves your device
How to Use
- Paste or type the text you want to condense.
- Adjust the number of sentences with the slider.
- Click Summarize and review the key sentences.
- Copy the summary wherever you need it.
Use Cases
- Condense long articles and news for quick reading
- Extract key points from meeting notes and transcripts
- Create executive summaries for reports
- Scan research papers before deep reading
- Reduce study material into revision notes
summarizer
text
extractive
privacy
Frequently Asked Questions
How does the Text Summarizer work?
The tool uses extractive summarization: it splits the text into sentences, scores each one by word frequency, key-term density and position, then keeps the highest-scoring sentences in their original order.
Is my text uploaded to any server?
No. The entire summarization algorithm runs locally in your browser with JavaScript. Your text never leaves your device, which makes it safe for private and confidential documents.
Does it work with Chinese text?
Yes. The tokenizer splits every Chinese character as a separate unit and applies the same frequency and position scoring, so Chinese articles can be summarized as easily as English ones.
How many sentences should I keep?
It depends on your goal. A typical rule is 3-5 sentences for a short digest, or about 30% of the total for a balanced summary. Use the slider to adjust the number of sentences and preview the result instantly.