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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mathjs
Extensive math library for JavaScript and Node.js with big numbers, complex numbers, units, and matrices.
Micromatch
Fast, POSIX-compliant glob matching for Node.js — the drop-in replacement for minimatch and multimatch.
cel-go
The Go implementation of the Common Expression Language for fast, safe, embeddable expression evaluation.
escape-string-regexp
Escape RegExp special characters in a string for safe use inside a JavaScript regular expression.
expr
A fast, type-safe expression language and evaluation engine embeddable directly in Go programs.
mdast-util-mdx
Mdast extensions that parse and serialize MDX syntax — ESM, JSX, and expressions — inside markdown syntax trees.
is-valid-path
Lightweight utility that checks whether a string is a valid, non-glob file path in Node.js.
micromark-extension-mdxjs
Combines MDX's JSX, expression, and ESM syntax extensions into one micromark plugin for parsing MDX documents.
react-awesome-query-builder
A highly configurable React component for building complex filter queries with a drag-and-drop UI, exportable to SQL, MongoDB, JsonLogic, and more.
simpleeval
A single-file Python library for safely evaluating user-supplied expressions without exposing full eval() access.
Cron Translator
Translate CRON expressions into human-readable text across 20+ languages for PHP applications.
later
Composable library for defining recurring schedules and calculating their next or previous occurrences.
string.prototype.matchall
Spec-compliant ES2020 polyfill for String.prototype.matchAll.
micromark-factory-mdx-expression
A micromark tokenizer factory that parses MDX-style `{expression}` syntax inside flow content, text, and JSX attributes.
expr-eval-fork
A security-patched fork of expr-eval for safely parsing and evaluating math expressions in JavaScript without native eval().
regexpp
A dependency-free, spec-accurate ECMAScript regular expression parser and validator with a full AST, powering ESLint's regex-aware rules.
