Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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PapaParse
The fastest in-browser CSV parser for JavaScript, with streaming, Web Workers, and zero dependencies
react-papaparse
React hooks and components wrapping PapaParse for fast in-browser CSV parsing
fast-csv
Streaming CSV parser and formatter for Node.js with zero runtime dependencies and full TypeScript support.
vm-browserify
Emulates Node's vm module in the browser by evaluating code inside a hidden, sandboxed iframe.
CleverCSV
A drop-in replacement for Python's csv module that detects the dialect of messy, real-world CSV files with far higher accuracy than the standard library.
simpleeval
A single-file Python library for safely evaluating user-supplied expressions without exposing full eval() access.
Asteval
A safe, minimalistic evaluator of Python expressions and statements using the ast module.
react-csv-reader
A lightweight React component that turns CSV file uploads into parsed data with zero manual FileReader wiring.
expr-eval-fork
A security-patched fork of expr-eval for safely parsing and evaluating math expressions in JavaScript without native eval().