Three lines
Input
short much longer line mid
Output
Longest line length: 16 Line number: 2 much longer line
The tool finds the longest line and shows where it appears.
Text Tools
Review practical Longest Line Finder examples so you can understand expected input, output, and common patterns faster.
Use this longest line finder to identify the longest line in pasted text, logs, lists, and copied content for formatting checks and quick analysis.
Example pages are especially useful for text tools because they show what good input looks like, what kind of output to expect, and how the tool behaves in common scenarios.
Input
short much longer line mid
Output
Longest line length: 16 Line number: 2 much longer line
The tool finds the longest line and shows where it appears.
Input
one line only
Output
Longest line length: 13 Line number: 1 one line only
If there is only one line, that line is returned.
Fix: This tool works line by line, not by paragraph blocks.
Fix: If there is one line only, that one line is the result.
Fix: This tool returns the longest single line only.
After reviewing these examples, run the live tool with your own input. If your task involves a follow-up step, the related page can help you move to the next tool in the workflow.
Open the main Longest Line Finder page and test your own real input.