Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
All Packages
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Leaflet.markercluster
Beautiful, animated marker clustering for Leaflet maps with thousands of points
cosmiconfig
Find and load configuration from package.json, rc files, or JS/TS/JSON/YAML config files
btree
An in-memory, ordered B-Tree data structure for Go, built as a drop-in replacement for gollrb's LLRB tree.
resvg
A small, fast, and portable SVG rendering library written entirely in Rust
ftfy
Detects and fixes mojibake, broken encodings, and other Unicode glitches in text, automatically.
petgraph
Fast, flexible graph data structures and algorithms for Rust.
Constate
Lift local React state into scoped Context using a single factory around your own hooks
XlsxWriter
A Python module for creating fully-featured Excel XLSX files with charts, formatting, and formulas
Behat
A behavior-driven development (BDD) testing framework for PHP driven by Gherkin.
Participle
A dead-simple Go library for building parsers straight from annotated struct tags.
gojq
A pure Go implementation of jq for querying and transforming JSON and YAML, usable as a CLI or embedded as a Go library.
react-calendar
Ultimate calendar for your React app — day, month, year, and decade views with built-in range selection.
behave
A Python behavior-driven development framework that runs Gherkin feature files against step definitions written in plain Python.
opentracing-go
The original vendor-neutral distributed tracing API for Go, later folded into OpenTelemetry.
go-metrics
A Go port of Coda Hale's Metrics library for counters, gauges, histograms, meters, and timers.
rooks
A massive, tree-shakeable collection of TypeScript-first React hooks
sql-migrate
A SQL schema migration tool for Go, usable as a standalone CLI or embedded directly as a library.
Log
A minimal, colorful Go logging library with leveled, structured, human-readable output.
alice
A minimalist Go library for chaining HTTP middleware into a single handler.
HTML Purifier
A standards-compliant PHP library that filters untrusted HTML through robust whitelists to block XSS while keeping rich formatting intact.
deltalake
Native Rust-powered Python binding for Delta Lake, giving pandas, Polars, and Arrow workflows ACID table reads and writes without a JVM.
ts-rest Core
End-to-end type-safe REST API contracts in TypeScript, with an RPC-like client and zero code generation.
ipywidgets
Interactive HTML widgets for Jupyter notebooks
xregexp
Extended, extensible JavaScript regular expressions with named capture, Unicode properties, free-spacing syntax, and a regex utility belt.
