UlvixorText Summarizer
Generates an extractive summary of a text: selects the most relevant original sentences based on the frequency of their key words, without rewriting or paraphrasing with artificial intelligence. The summary is made entirely of sentences as they appear in the original text, in their original order. Everything is processed in your browser.
How it works
- Paste the text you want to summarize into the input panel.
- Choose the text's language (this affects which words are ignored as 'filler', like articles and prepositions).
- Set how many sentences you want the summary to have.
- Click 'Summarize'; the algorithm calculates the frequency of relevant words, scores each sentence based on those words, and selects the highest-scoring ones.
- The selected sentences are shown in their original order, not in order of importance.
Use cases
- Get a quick overview of a long article's main ideas before reading it in full.
- Generate a summary of a text to use as an introduction or preliminary abstract.
- Reduce a lengthy report to its most representative sentences for a quick review.
- Quickly compare the content of several texts by reading only their summaries.
Use cases
- Get a quick overview of a long article's main ideas before reading it in full.
- Generate a summary of a text to use as an introduction or preliminary abstract.
- Reduce a lengthy report to its most representative sentences for a quick review.
- Quickly compare the content of several texts by reading only their summaries.
Common mistakes
- Expecting a summary written with new words, like an AI assistant would produce.This is an extractive summary: it selects complete sentences from the original text, it doesn't generate new text. If the original text is hard to read, the summary will keep that same wording.
- Requesting very few sentences for a text covering many different ideas.If the text covers several topics and you ask for only 1 or 2 sentences, the summary may leave out important ideas. Try increasing the sentence count if the result feels incomplete.
- Using the wrong language for the text you're summarizing.The language affects which words are treated as 'filler' (articles, prepositions) and ignored when calculating relevance; the wrong language can make sentence scoring less accurate.
Frequently asked questions
It means the summary is made of complete sentences taken literally from the original text, selected for their relevance, instead of generating new phrases that paraphrase the content.
No. All analysis and summary generation happen entirely in your browser with JavaScript.
It calculates how often each relevant word (ignoring articles, prepositions, and very common words) appears throughout the text, and scores each sentence based on the frequent words it contains. The highest-scoring sentences are included in the summary.
The tool works best in Spanish and English, the two languages with configured filler-word lists. In other languages, sentence selection may be less accurate.
Alternatives
AI-based tools like ChatGPT can generate paraphrased, more fluent summaries, but require sending your text to an external service. This tool is useful when you prefer to keep the original text intact (no rewriting) and process it entirely in your browser.