Text & content / Quick tool

Sentence Breaker & Line Splitter

Split English or Chinese prose so each detected sentence appears on its own line while preserving punctuation.

● Processed locally in your browser
Processed locally in your browser
Current: Sentence Breaker & Line Splitter · Switch to 47 other tools in this workbench
One sentence per line Choose an action to process the input.
How to useHow to use Sentence Breaker & Line Splitter

Split English or Chinese prose so each detected sentence appears on its own line while preserving punctuation.

  1. 1

    Paste content, enter parameters or choose the files you need in “Prose text”.

  2. 2

    Choose “Break into lines” for the job. Processing runs in this browser.

  3. 3

    Review the result under “One sentence per line”, then copy or download it after checking the output.

Result guide

What Sentence Breaker & Line Splitter calculates

The local parser detects sentence endings such as . ! ? 。! and ?, keeps the punctuation, trims surrounding space, and writes one detected sentence per line.

Frequently asked questions

Which sentence-ending marks are detected?

The current parser recognizes English period, exclamation and question marks plus Chinese full stop, exclamation and question marks.

Will abbreviations such as “e.g.” always stay together?

No. This is a transparent punctuation-based splitter, not a language model. Review abbreviations, decimal numbers and unusual punctuation after splitting.

Does the tool upload or save the text?

No. Sentence detection runs in the current browser tab. The input and result are not sent to the 321Kit server.