line-reader-regex
A Node.js package to read a file line by line and extract lines based on a regex match.
linereader2
Asynchronous, buffered, chunk-by-chunk file reader with customizable buffer size on Node.js.
@dwesley/linereader
A simple `Readliner` class, similar to Java's `readline()` method, written in typescript (for Node) to read files line-by-line asynchronously and quickly.
lbl
Process stdin, line by line, sort of like AWK but 100% JS