Free Developer Tool
Text Line Length Checker
Analyze text line lengths and identify lines that are too long or too short.
Text
Each physical line separated by a line break is analyzed independently.
Minimum Length
characters
Maximum Length
characters
Overall Result
50.0%
Needs improvement
2 of 4 non-empty lines are within the selected range.
Average
68.8
Shortest
45
Longest
103
Total Characters
278
Line Status
Optimal2
Too short0
Too long2
Recommended range45–75 characters
Line-by-Line Analysis
Line 1Optimal45 chars
Good typography makes content easier to read.
Line 2Too long103 chars
Keeping paragraphs at a comfortable line length helps readers move naturally from one line to the next.
Line 3Too long77 chars
Very long lines can make it difficult to find the beginning of the next line.
Line 4Optimal50 chars
Very short lines can make reading feel fragmented.
About Line Length
• The default range of 45–75 characters is a common readability guideline for body text.
• Actual readability also depends on font size, font family, line height and screen width.
• Short lines are not automatically bad, especially for headings, labels and UI elements.
• This checker analyzes explicit line breaks. It does not simulate browser text wrapping.
What is Text Line Length Checker?
Check the length of individual text lines to improve readability, formatting consistency and source-code style.
How to use
- Paste or enter your text.
- Analyze the length of each line.
- Review lines that exceed the selected limit.
- Adjust the text and check it again.
Features
- Line length analysis
- Maximum length checking
- Per-line character counts
- Long-line detection
- Browser processing
Common Use Cases
- Code formatting
- Documentation writing
- Plain-text formatting
- README files
- Readable source content
Example
Input
This is a short line. This is a much longer line that can be checked against a maximum character limit.
Output
Line 1: 20 characters Line 2: 88 characters Lines exceeding limit: 1
FAQ
Does it count characters on each line?
Yes.
Can long lines be detected?
Yes.
Does it modify the text?
No.
Missing a feature?
If this tool doesn't cover your use case or is missing functionality, please let me know through the Contact page.
New improvements and features are added based on user feedback.