Line Counter
Free online line counter. Count total lines, non-empty lines and empty lines instantly. Works with code, documents and data files. All processing is local and private.
How to Use Line Counter
Paste Your Text
Type or paste text into the input panel. The tool accepts any text — code, documents, data files, or plain text with any line ending format (Windows CRLF or Unix LF).
View Line Counts
The tool automatically shows total lines, non-empty lines, and empty lines. Results update in real-time as you type or edit the text.
Use the Results
Line counts are useful for checking code file lengths, estimating document size, validating CSV row counts, and meeting submission requirements for academic papers.
Example
Line 1: Hello world
Line 2:
Line 3: This is content
Line 4:
Line 5: Last lineTotal Lines
Non-Empty Lines
Empty Lines
Frequently Asked Questions
What counts as a line?
A line is any text followed by a line break (Enter/Return). The tool counts every line, including empty lines and the last line even if it does not end with a line break. This matches the behavior of most code editors and text processing tools.
What is the difference between total lines and non-empty lines?
Total lines includes every line, including blank lines. Non-empty lines excludes lines that contain only whitespace (spaces, tabs) or nothing at all. This is useful when you want to know how many actual content lines a file has, such as lines of code excluding blank lines.
Does this work with code files?
Yes, the line counter works with any text-based file. Paste code, log files, CSV data, or configuration files. For counting lines of code specifically, non-empty lines give a rough estimate — though dedicated tools like cloc provide more accurate language-specific metrics.
Why would I need to count lines?
Common use cases include: checking if a CSV file has the expected number of rows, validating data imports, estimating document length for translation quotes, meeting page/line requirements for academic papers, and tracking code file sizes during development.
Common Uses for Line Counting
Line counting is one of the simplest and most useful text metrics. Developers use it to gauge file complexity, writers use it to estimate document length, and data analysts use it to validate datasets.
Practical Applications
- Code review: Check if a file has grown too large and needs refactoring
- Data validation: Verify a CSV has the expected number of rows before import
- Translation: Estimate translation cost based on line count
- Academic: Meet line or page count requirements for assignments
- Log analysis: Count error lines in application logs