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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abxpkg
Modern, strongly-typed Python library and CLI for detecting, installing, and managing system binaries across apt, brew, pip, npm, cargo, and more.
loro-py
Python bindings for the Loro CRDT engine for local-first, collaborative data.
Texting Robots
A Rust-native robots.txt parser, battle-tested against tens of millions of real-world sites.
@acemir/cssom
A pure-JavaScript CSS parser and CSS Object Model implementation.
elastic-transport-python
The shared HTTP transport layer powering Elastic's Python client libraries
estree-util-build-jsx
Converts JSX embedded in an ESTree syntax tree into React.createElement or automatic jsx-runtime calls.
git-url-parse
A Rust parser for the URLs used by git, extracting components and host provider details.
tree-sitter-svelte-ng
An incremental Tree-sitter grammar for Svelte component syntax.
EVP_BytesToKey
Reimplements OpenSSL's legacy EVP_BytesToKey key-derivation algorithm in pure JavaScript for compatibility with older OpenSSL-encrypted data.
python-mimeparse
Basic functions for parsing and content-negotiating Internet media types in Python.
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.
firebolt-sdk
A Python DB-API 2.0 client for the Firebolt cloud data warehouse.
sanic-routing
The AST-compiled node-tree router that powers Sanic's path and signal routing.
accept-language
A tiny, dependency-free Rust library for parsing the HTTP Accept-Language header.
@connectrpc/validate
A Connect interceptor that validates RPC requests and responses using Protobuf constraints and CEL expressions.
quickjs-rs
Sandboxed JavaScript and TypeScript execution for Python, running QuickJS inside a WebAssembly sandbox.
spacy-loggers
Training-run loggers for spaCy: Weights & Biases, MLflow, ClearML, PyTorch, CuPy
@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LaunchDarkly's client-side feature-flag SDK for single-user Node.js apps, now superseded by the scoped @launchdarkly/node-client-sdk package.
tinyhtml5
A tiny, WHATWG-spec HTML5 parser that turns malformed real-world HTML into a clean Python ElementTree.
@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.
expr-eval-fork
A security-patched fork of expr-eval for safely parsing and evaluating math expressions in JavaScript without native eval().
django-signal-webhooks
Fire webhooks automatically from Django model signals - create, update, delete, and M2M changes - with per-model admin configuration and async delivery.
