Paragraph Topic Sentence Highlighter
Paste up to 100,000 characters and locally mark each paragraph’s first sentence for review.
Paste text to highlight the first sentence of each paragraph.
Heuristic only: the first sentence is highlighted as a possible topic sentence. This does not use ML or NLP and cannot determine meaning.
A QUICK WALKTHROUGH
How to use this tool
- Paste paragraphs with blank lines between them.
- Run the heuristic highlighter.
- Review and copy the marked text.
Transparent heuristic
The tool marks the first sentence in each paragraph based on punctuation and paragraph breaks. It does not infer meaning.
Limits
This is a writing aid only. It uses no machine learning or NLP and may miss unusual punctuation or paragraphs whose topic sentence appears later. Input is limited to 100,000 characters.
GOOD TO KNOW
Common questions
Does it understand the topic?
No. It only highlights the first sentence as a possible topic sentence.
Does it use AI, ML, or NLP?
No. The rule is local and punctuation-based.
Can it rewrite my text?
No. It only marks text for review.