AI Text Summarizer
Paste any article, essay, or document and get a concise, accurate summary in seconds. Advanced AI runs entirely in your browser, no uploads, no API key, completely private.
Input Text
237 wordsSettings
How to summarize text with AI
Get a concise AI-generated summary in four steps, no account needed.
- 01
Paste your text
Paste any article, essay, research paper, or long document into the input panel. The tool works best with 100–2000 words.
- 02
Adjust summary length
Use the Max and Min length sliders to control how long the summary should be. Shorter settings produce a headline-style summary; longer settings preserve more detail.
- 03
Click Summarize
On first use, the AI model (~250 MB) downloads to your browser and is cached for future sessions. Subsequent uses are instant.
- 04
Copy or use the summary
The summary appears below the settings panel. Click Copy to copy it to your clipboard, or use the reduction percentage to gauge how much was condensed.
What people use it for
Six situations where summarising saves time.
Research papers
Quickly grasp the key findings of academic papers without reading every section in full.
News articles
Get the gist of long news articles in a few sentences, useful for staying informed without information overload.
Meeting notes
Paste meeting transcripts or notes and get a concise summary of decisions and action items.
Legal documents
Summarize contracts, terms of service, or policy documents to understand the key points before reading in detail.
Study & revision
Condense textbook chapters or lecture notes into shorter summaries for faster revision.
Content curation
Summarize multiple articles quickly to decide which ones are worth reading in full.
How the summary is written
The tool runs DistilBART, a smaller version of Facebook's BART model fine-tuned on CNN and Daily Mail news articles, through the Transformers.js library in your browser. It's an abstractive summariser: rather than copying sentences, it writes a new, shorter text from what it has read. That's why summaries can include phrasing that isn't in the original.
Two settings control length. The maximum, from 50 to 300 tokens and starting at 150, caps how long the summary can get; the minimum, starting at 50, stops it from being too terse. A token is roughly three quarters of a word, so the default 150-token cap gives a summary of up to about 110 words.
| Input | What happens |
|---|---|
| Under about 100 words | Often just a reworded version of the original |
| 100 to 650 words | The range the model handles best |
| Over 4,096 characters (about 650 words) | Only the first part is summarised; the rest is ignored |
Check the summary before you rely on it
- Like all AI summarisers, it can get facts wrong, merge two points, or state something the original didn't say. Check names, numbers and dates against the source.
- It was trained on news, so it does best with articles and reports. Chat logs, code, lists and poetry give weaker results.
- English only. Text in other languages produces unreliable summaries.
- The first run downloads roughly 250 MB of model files; later runs use your browser's cache.
Frequently asked questions
Everything you need to know about the AI text summarizer.