Text Summarizer - Free Online Tool | PivaBox

Auto-summarize text using TF-IDF extractive sentence scoring — keep the most important sentences

How to Use Text Summarizer

1. Paste or type your text into the Original Text textarea above
2. Adjust the Summary Length slider (10%-50%) to control how many sentences to keep, then click Auto Summarize
3. Read the summarized text, toggle Highlight Sentences to see which sentences were selected, and click Copy Summary to copy the result

Frequently Asked Questions

Is Text Summarizer free?

Yes, PivaBox Text Summarizer is completely free to use. There are no charges, subscriptions, or hidden fees. All summarization runs locally in your browser.

Is my text uploaded to a server?

No. All text summarization happens entirely in your browser using a pure JavaScript TF-IDF algorithm. Your text never leaves your device, ensuring complete privacy and security.

How does the TF-IDF summarization work?

TF-IDF (Term Frequency-Inverse Document Frequency) is an extractive summarization method. It splits your text into sentences, scores each sentence based on how important its words are relative to the entire text, and selects the top-ranked sentences while maintaining their original order. This preserves the most meaningful content while keeping it readable.