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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deser-hjson
A Serde deserializer for Hjson, the human-friendly configuration variant of JSON.
configcat-js
Official JavaScript SDK for evaluating ConfigCat feature flags and remote config values directly in the browser.
fastar
High-performance Python tar archives powered by Rust
sitemap-rs
A Rust library to generate URL, index, image, video, and news XML sitemaps.
colored_json
Colorizes JSON output with ANSI terminal codes by implementing serde_json's Formatter trait directly.
weakmap-polyfill
A lightweight, spec-compliant ES6 WeakMap polyfill for browsers and JS engines without native support.
simple-xml-to-json
A tiny, dependency-free library that transpiles XML into JSON through an AST.
smtp-proto
A fast, zero-copy SMTP/LMTP protocol parser for Rust covering every registered service extension.
geoutils
A Rust crate for geographic distance computations and geofencing utilities
grenad
A Rust library to sort, merge, write, and read immutable key-value pairs on disk
radsort
Radix sort for Rust slices by scalar keys — integers, floats, chars, and bools — with a digit-skipping optimization for real-world speed.
estree-util-build-jsx
Converts JSX embedded in an ESTree syntax tree into React.createElement or automatic jsx-runtime calls.
unicode-general-category
Fast, no-std lookup of the Unicode General Category property for Rust `char` values, powered by a two-level table generated from Unicode 16.0 data.
EVP_BytesToKey
Reimplements OpenSSL's legacy EVP_BytesToKey key-derivation algorithm in pure JavaScript for compatibility with older OpenSSL-encrypted data.
tag-expressions
A small boolean-expression parser and evaluator for selecting Gherkin scenarios by tag, used by behave and other Cucumber-family test runners.
string.prototype.matchall
Spec-compliant ES2020 polyfill for String.prototype.matchAll.
num-cmp
A Rust trait for safely comparing numbers of different integer and floating-point types without manual casting.
@connectrpc/validate
A Connect interceptor that validates RPC requests and responses using Protobuf constraints and CEL expressions.
lean_string
Compact, clone-on-write string type for Rust with inline storage and a String-compatible API.
quickjs-rs
Sandboxed JavaScript and TypeScript execution for Python, running QuickJS inside a WebAssembly sandbox.
sse-stream
A lightweight Rust crate for decoding and encoding Server-Sent Events over any http_body-compatible HTTP body.
@tinyhttp/logger
Minimal and flexible HTTP request logger middleware for tinyhttp and Node.js.
node-client-sdk
LaunchDarkly's client-side feature-flag SDK for single-user Node.js apps, now superseded by the scoped @launchdarkly/node-client-sdk package.
@datadog/native-metrics
A native Node.js addon that collects CPU, V8 heap, garbage-collection, and event-loop metrics directly from libuv and V8 internals.
