csv-parse
CSV parsing implementing the Node.js `stream.Transform` API
papaparse
Fast and powerful CSV parser for the browser that supports web workers and streaming large files. Converts CSV to JSON and JSON to CSV.
pdfreader
Read text and parse tables from PDF files. Supports tabular data with automatic column detection, and rule-based parsing.
mrcoder-file-parser
A TypeScript-based library for parsing CSV, Excel (XLSX/XLS), XML, and YAML files with a unified API.