Line Filter

Filter pasted lines by a plain-text substring with optional case sensitivity, without regex semantics.

Before / afterLine endingsUTF-8 bytesRepeat safely

Lines

Literal text

Mode

Case-sensitive

ReadyPlain literal matching only; use Regex Line Filter for regular expressions.

Text cleanup runs locally in your browser. These tools operate on plain text lines; structured CSV/JSON/XML and regex workflows remain in their dedicated tools.

Filtering can remove complete lines

A kept-line result can legitimately be empty. Literal matching is different from regex filtering.

Repeatable text workflow

Use output as input only when the preview is what you intended. Restore returns to the page-load sample, and the before/after audit remains local to your browser.