AI Text Summarizer
Get concise summaries of long text in seconds. Choose between a short summary paragraph or organized bullet points. All processing happens locally — no data leaves your browser.
What is a Text Summarizer?
A text summarizer is a tool that condenses long content into a shorter version while retaining the most important information. It analyzes the text structure, identifies key sentences, and produces a concise summary that captures the essence of the original content.
Our summarizer uses extractive summarization — it selects and combines the most important sentences from your text rather than generating new content. This ensures accuracy and faithfulness to the original.
How Does It Work?
The summarizer uses several algorithms to identify important content:
- Keyword density scoring: Sentences with frequently occurring important words score higher
- Position scoring: First and last sentences of paragraphs are weighted more heavily
- Length normalization: Very short or very long sentences are penalized
- Redundancy removal: Similar sentences are deduplicated to avoid repetition
- Cue phrase detection: Sentences with important signals (e.g., "in conclusion", "most importantly") score higher
Summary Modes
Short Summary
Produces a condensed paragraph that's approximately 30% of the original text length. Best for getting a quick overview of an article or document.
Bullet Points
Extracts the single most important point from each paragraph and presents them as a bulleted list. Ideal for creating study notes, meeting summaries, or content outlines.
Benefits
- Save time reading long articles and documents
- Create quick study notes from textbooks
- Generate meeting summaries and action points
- Condense research papers into key findings
- Free and private — runs entirely in your browser
Tips for Best Results
- Input text should be at least 100 words for meaningful summaries
- Well-structured text with clear paragraphs produces better bullet points
- Remove headers, footers, and navigation text before summarizing
- The tool works best with informational/expository text
- Combine with Paragraph Rewriter to rephrase summaries
Frequently Asked Questions
How does the text summarizer work?
It uses extractive summarization — scoring sentences by keyword density, position, and importance cues, then selecting the highest-scoring sentences to form a concise summary.
Is this summarizer free?
Yes, completely free with no signup, no word limits, and no API costs. All processing happens locally in your browser using JavaScript.
How long should my input text be?
The summarizer works best with text of 100+ words. Longer texts (500+ words) produce more meaningful summaries as there's more content to extract key points from.
What's the difference between Short Summary and Bullet Points?
Short Summary produces a condensed paragraph (~30% of original length), while Bullet Points extracts the key point from each paragraph as a bulleted list for easy scanning.