About this tool
Automatically summarises text using extractive algorithms (TextRank, LSA, LexRank). Multilingual, works offline, no generative AI. Useful for condensing long articles, capturing the essence of extensive documents, preparing summaries of academic readings, or identifying the most important sentences in any text.
How to use
- Paste the text to summarise.
- Pick the algorithm (TextRank, LSA, or LexRank).
- Set how many sentences you want in the summary.
- Read the summary made up of the most relevant sentences.
Frequently asked questions
- What is extractive summarisation?
- Summarisation that selects the most important sentences from the original text and returns them unchanged. It differs from generative summarisation (with AI) which rewrites the text in new sentences. Extractive summarisation is more faithful to the original, more predictable, and works with any language, but can be less cohesive when chosen sentences come from different parts of the text.
- Which algorithm should I pick?
- TextRank relies on similarity between sentences and works well for most texts. LSA captures more abstract concepts, better for dense texts. LexRank is similar to TextRank with small scoring variations. For casual use, any of them works. Try with your text and pick whichever result seems most useful.
- Does it work in any language?
- Yes, in most cases. The algorithms don't depend on specific language grammar, just on frequent words and sentence structure. Works well in Latin, Germanic, and Slavic languages. Languages with different tokenisation (Chinese, Japanese, Thai) may give less accurate results.