Text Summarizer
Automatically shorten a long text down to its most representative sentences, picked directly from your original text - runs entirely in your browser, no AI service involved.
This uses a classic extractive algorithm - it selects your text's most representative existing sentences based on word frequency, rather than writing new sentences with generative AI. That keeps it 100% free and browser-based, though the result is more "highlights reel" than a fluent AI-written paraphrase.
Recommended Settings
Pro Tips
- •This is extractive summarization - every sentence in the summary is copied word-for-word from your original text, just filtered down to the most representative ones
- •Sentences are scored by how many frequently-used, meaningful words they contain, then the highest-scoring ones are kept in their original order
- •Works best on longer, well-structured text like articles or reports - very short text won't have much to condense
- •If your text is already shorter than your requested summary length, the full text is returned as-is
Most Popular
Most users summarize down to 3-5 sentences, enough to capture the main points of a typical article
When to Use This Tool
Get the key sentences from a lengthy article before deciding whether to read it in full.
Condense long meeting notes down to their most important points.
Pull the most representative sentences from a research paper or textbook excerpt.
Generate a short preview of a longer piece of content.
How It Works
Split the text into individual sentences and tally how often each meaningful word appears
Score every sentence based on how many frequently-used words it contains, normalized for sentence length
Select the highest-scoring sentences up to your requested count, then restore their original order
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Client-side extractive summarization (word-frequency sentence scoring) for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
Is this powered by AI?
No, it uses a classic extractive algorithm that selects existing sentences from your text based on word frequency, rather than a generative AI model writing new sentences. This keeps it completely free, private, and browser-based.
Why does the summary read a bit choppy?
Since it's built from your original sentences rather than freshly written prose, transitions between selected sentences can feel abrupt - it's more of a highlights reel than a smooth paraphrase.
Does this work well on short text?
It works best on longer text with multiple paragraphs. Very short text (a sentence or two) doesn't have much to condense, so the full text may be returned as-is.
Is my data sent to a server?
No. The entire summarization process runs locally in your browser - your text is never transmitted anywhere.
Can I control how short the summary is?
Yes, use the slider to choose anywhere from 1 to 10 sentences in the final summary.