Automatically add line breaks after sentences in your text. Handles abbreviations, quoted text, and CJK punctuation. Free, instant, and 100% client-side.
A free online tool that automatically inserts line breaks after sentences in your text. Perfect for formatting paragraphs, creating subtitles, preparing text for presentations, and improving readability. The tool intelligently recognizes sentence endings while preserving common abbreviations like Mr., Mrs., Dr., and Prof. It also supports CJK punctuation marks. All processing happens in your browser — no data is sent to any server.
The tool recognizes common abbreviations including Mr., Mrs., Ms., Dr., Prof., Inc., Ltd., Jr., Sr., vs., e.g., i.e., and many others. This prevents incorrect line breaks after these abbreviations.
Yes! The tool supports CJK (Chinese, Japanese, Korean) punctuation marks such as 。 ！ ？ and handles various quote styles including「」『』 in addition to standard Western quotation marks.
No. All text processing happens entirely within your browser. We do not store, transmit, or log any of your input or output text.
Yes, simply click the "Clear" button to reset the output, or use your browser's undo function (Ctrl+Z / Cmd+Z) to revert changes. The original text is preserved in the input area until you manually clear it.
This tool is ideal for formatting essays, reports, subtitles, scripts, presentation slides, social media posts, emails, and any text where clear paragraph separation improves readability.
The tool preserves existing line breaks, so bullet points and numbered lists remain intact. It only adds new line breaks after sentence-ending punctuation within continuous text blocks.
While primarily designed for natural language text, the tool can format comments and documentation in code. However, for code formatting, dedicated tools like JSON Formatter or CSS Formatter are recommended.
There is no artificial limit. Since all processing happens in your browser, you can process large texts limited only by your device's memory. Very large texts (megabytes) may cause temporary browser slowdown.