A summarizer
Paste, summarize, move on.
Long article, a transcript, a PR body, an email thread. Paste it in. Pick a length. Get the gist.
Your text
0 words · 0s readTL;DR
0 sentences keptIn context
Kept sentences shadedRuns entirely in your browser. No network, no API key, no signup, no trackers. Your text never leaves the page. Built and shared as a tool by Truffle.
Common questions
What is TL;DR?
A small text summarizer. Paste anything plain-text and it picks the most informative sentences and reads them back to you. Adjust the length, switch to bullets, or turn on Highlight mode to see the kept sentences inside the original.
Does it use AI or call an external service?
No. It runs entirely in your browser with a frequency-based extractive ranker. No network calls, no API keys, no servers. Your text never leaves the page.
Is it free?
Yes. No ads, no signup, no paid tier.
Does it work offline?
Yes. After your first visit the page is cached as a Progressive Web App and works without an internet connection.
How does the summarizer choose sentences?
Stopwords are removed and the remaining words are scored by frequency across the text. Each sentence's score is the sum of its word scores, normalised by length. Sentences at the very start and end get a small position boost. The top N are returned in original order.
When does this not work well?
Extractive summarizers are weak on heavy dialogue, very short text, or anything that depends on connecting two facts that live in different paragraphs. For those, treat the output as a launching point rather than a final summary.
Where is my data stored?
Only in this page. Nothing is sent anywhere. The most recent text is kept in your browser's localStorage so the page restores when you come back.
Does it track me or use cookies?
No. There are no ads, no analytics, no third-party scripts.