Directory

Open Source Packages

Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.

5929 packages

All Packages

70Health
Tool npm

@elastic/opentelemetry-node

Elastic's zero-code OpenTelemetry distribution for Node.js, giving production apps tracing, metrics, and logs with a single --import flag.

12
Apache 2.0
Used by 1
59Health
Tool Composer

openapi-extractor

Generates OpenAPI specifications directly from annotated Nextcloud PHP controllers.

12
AGPL 3.0
Used by 1
45Health
Library npm

axios-ntlm

Drop-in Axios wrapper that transparently handles NTLM authentication handshakes for Windows-protected HTTP endpoints.

10
MIT
Used by 1
26Health
Library npm

@tinyhttp/logger

Minimal and flexible HTTP request logger middleware for tinyhttp and Node.js.

10
MIT
Used by 1
56Health
SDK npm

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LaunchDarkly's client-side feature-flag SDK for single-user Node.js apps, now superseded by the scoped @launchdarkly/node-client-sdk package.

9
Apache 2.0
Used by 1
41Health
Library PyPI

tinyhtml5

A tiny, WHATWG-spec HTML5 parser that turns malformed real-world HTML into a clean Python ElementTree.

9
MIT
Used by 1
37Health
Library npm

@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.

8
Apache 2.0
Used by 1
18Health
Library npm

expr-eval-fork

A security-patched fork of expr-eval for safely parsing and evaluating math expressions in JavaScript without native eval().

7
MIT
Used by 1
25Health
Library npm

level-read-stream

Node.js readable streams for iterating keys, values, and entries in abstract-level databases.

7
MIT
Used by 1
17Health
Library Cargo

url-parse

A Rust library that breaks URLs into scheme, credentials, domain, port, path, query, and anchor, with support for custom schemes.

5
MIT
Used by 1
42Health
Library Composer

Utopia Compression

A lightweight PHP library providing one unified API for Brotli, GZIP, Deflate, LZ4, Snappy, XZ, and Zstd compression.

4
MIT
Used by 1
53Health
Library Composer

validators

A lightweight PHP validator library with 25+ composable rules for text, network, and structured JSON input validation.

4
MIT
Used by 1
49Health
Library Composer

Utopia Telemetry

A lightweight, adapter-based PHP telemetry library for OpenTelemetry metrics, built by the Appwrite team.

2
MIT
Used by 1
88Health
Tool npm

Repomix

Packs an entire repository into a single AI-friendly file, complete with token counts, secret scanning, and an MCP server for direct AI assistant access.

28,508
MIT
33Health
Library npm

regexpp

A dependency-free, spec-accurate ECMAScript regular expression parser and validator with a full AST, powering ESLint's regex-aware rules.

31
MIT

Join founders buildingwith open source

Opinionated takes, migration guides, cost-saving tips, and insights from the open source ecosystem.

Subscribe on Substack
Join 750+ subscribers