File Line Counter
Count total lines, blank lines, and code lines in uploaded text files.
Document & Markup Converter
About File Line Counter
The High-Speed File Line & Word Counter analyzes local files and large text documents, calculating Total Lines, Non-Empty Lines, Blank Lines, Code Comments, Word Count, Character Count, and Average Line Length with instant browser evaluation.
How to Use File Line Counter
Step 1
Drag-and-drop any text file or paste text into the analyzer.
Step 2
Inspect the instant breakdown of total lines, blank lines, words, and byte metrics.
Step 3
Click "Copy Statistics" to save the summary report.
Practical Use Cases for File Line Counter
Source Code & Project Size Metrics (SLOC Auditing)
Count total lines of code, blank lines, and comment density across project source files without command-line `wc -l`.
Verifying Dataset Row Counts
Check exact row counts of large CSV or JSONL datasets before importing into production SQL databases.
Input & Output Examples
Analyzing 1,000-Line Code File
File: `app.ts` (1,000 total lines)
Total Lines: 1,000 | Non-Empty Lines: 850 | Blank Lines: 150 | Words: 4,200 | Longest Line: 120 chars | Avg Line Length: 38 chars
Key Features & Performance
- ✓Calculates: Total Lines, Non-Empty Lines, Blank Lines, Words, Characters, Bytes, and Max/Average Line Length.
- ✓Streaming line reader: processes multi-megabyte files in milliseconds without freezing UI.
- ✓Supports drag-and-drop file upload and direct clipboard text pasting.
- ✓100% Client-Side memory execution.
- ✓1-Click Copy line statistics report.
Key Terminology & Definitions
SLOC (Source Lines of Code)
A software metric used to measure the size of a computer program by counting the number of lines in the text of the program's source code.
Non-Empty Lines
Lines containing one or more non-whitespace characters, excluding empty lines and pure spaces/tabs.