Online Tool Store
Text Summarizer
Pull the highest-scoring sentences out of long text using local word-frequency analysis — no AI, no upload. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Example shown — paste your own text (works best with a few paragraphs).
How it works
- Paste in a few paragraphs of text.
- Choose how many sentences to keep.
- The highest-scoring sentences are pulled out, in their original order.
The method
Each sentence is scored by how often its meaningful words (common words like "the" and "and" are ignored) appear across the whole text, normalized by sentence length so long sentences don't win purely by containing more words:
Sentence score = (sum of each word's frequency in the text) ÷ (word count in that sentence)
FAQ
Does this use AI?
No — it uses "extractive" summarization: word-frequency scoring picks the most representative sentences already in your text and returns them as-is. It never generates new wording, which is also why nothing needs to be sent to an AI service.
Why does it sometimes pick a sentence that feels out of context?
The algorithm scores each sentence by how many frequently-used, meaningful words it contains — it doesn't understand meaning or narrative flow, so an information-dense sentence can rank highly even if it reads awkwardly pulled out of sequence. This works best on informational text (articles, reports), less well on narrative or conversational text.
Why does the first sentence often get picked?
It gets a small scoring bonus, since opening sentences in most informational writing tend to introduce the topic and carry above-average context.
Is my text uploaded anywhere?
No — every step (splitting sentences, scoring words, ranking) runs locally in your browser. Nothing is sent to a server.
How we compare
| Feature | Online Tool Store | AI summarizer tools | Reading manually |
|---|---|---|---|
| No file upload — runs in your browser | ✓ | Sends text to an AI API | ✓ |
| Instant, no waiting on generation | ✓ | Several seconds per request | Slowest option |
| Always uses your exact original wording | ✓ | Rewrites in its own words, can misstate details | ✓ |
For text that's sensitive, or where you need the exact original wording preserved rather than an AI's rephrasing, an extractive summary is the safer, more faithful choice.