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Text Line Length Inspector
Find long text lines and download every line length, threshold flag and tied extreme.
Pasted text, One UTF-8 text file
line-lengths.json
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Paste the admitted text or choose one UTF-8 source file. A selected file takes precedence.
- Choose the explicit operation and options, then inspect the stated conventions and limits.
- Select Inspect line lengths and download line-lengths.json.
Examples
With a limit of 4, alpha is over the limit and beta is not.
Limitations
- At most 200,000 UTF-16 units / 800,000 UTF-8 bytes; 50,000 logical lines and 65,536 units per line; at most 5 MiB complete combined output and 30 seconds. A selected valid UTF-8 file takes precedence over paste. File BOM and original CR/LF spans are preserved for reporting; native textarea input can normalize newlines.
- Codepoint lengths count a tab as one scalar. Grapheme clusters and visual editor columns are outside this measurement.
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