Live
No signup
AI · Article Summarizer
Smart TL;DRs.
Article Summarizer
Paste any article and get summary + 5 bullets + TL;DR. 100% in your browser.
Compression:
25%
How this tool works
LLM-based summarizers (ChatGPT, Claude) are powerful but expensive, slow and depend on API keys. For quick article summaries without sending data to any server, classical extractive algorithms work surprisingly well — they extract the highest-'informational density' sentences from the original text without paraphrasing.
This summarizer uses word-frequency scoring (excluding es/en stopwords), position bonus (early sentences and conclusion weighted higher), and length filtering. Returns TL;DR (top 1 sentence), 5 key bullets, and a complete summary at the % you choose (10-50%). All in your browser, no API.
Frequently asked questions
- Extractive vs abstractive?
- Extractive: copies original sentences. Abstractive (LLM): rewrites with new words. Extractive is more faithful but sounds 'choppy'; abstractive is fluid but can invent (hallucination).
- What compression % to use?
- For internal emails (TL;DR): 10-15%. For study notes: 25%. For executive summaries: 30-40%. Over 50% isn't summary, it's editing.
- Does it work in other languages?
- Best with Spanish/English (stopwords defined for those). For Portuguese or French it works but less accurate — generic stopwords aren't filtered.
- Why does it sometimes fail?
- Short texts (<5 sentences): not enough material. Texts without clear sentence boundaries (chats, raw transcripts): splitter can't find boundaries. Highly technical texts with unique vocab: frequency doesn't discriminate well.