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

75Health
Library PyPI

bcrypt (Python)

A Python library for secure password hashing using the bcrypt algorithm with an adjustable work factor

1,503
Apache 2.0
Used by 16
87Health
Framework PyPI

Django

The high-level Python web framework that turns database models into secure, working web applications in record time.

91,063
BSD 3
Used by 15
92Health
Framework PyPI

django-rest-framework

The most widely-used toolkit for building Web APIs on top of Django, with serializers, viewsets, and a built-in browsable API.

30,179
BSD 3
Used by 15
84Health
Library npm

got

Human-friendly and powerful HTTP request library for Node.js, with retries, streams, pagination, and RFC 7234 caching built in.

14,940
MIT
Used by 15
98Health
SDK PyPI

Azure Identity (Python)

Microsoft Entra ID token authentication for Azure SDK clients in Python

5,600
MIT
Used by 15
46Health
Library PyPI

itsdangerous

A small Python toolkit for cryptographically signing data so you can trust it hasn't been tampered with when it comes back from an untrusted client.

3,134
BSD 3
Used by 15
40Health
Library PyPI

aiosqlite

Async/await-friendly wrapper around Python's built-in sqlite3 module for asyncio applications.

1,575
MIT
Used by 15
82Health
Library PyPI

markdown-it-py

A CommonMark-compliant Markdown parser for Python, ported from the JS markdown-it

1,361
MIT
Used by 15
84Health
Library npm

node-html-parser

A very fast HTML parser that builds a lightweight DOM tree with full CSS3 selector support.

1,245
MIT
Used by 15
76Health
Library PyPI

croniter

Parses cron schedule strings and iterates the matching datetime values, with DST, second/year fields, and last-weekday support.

563
MIT
Used by 15
88Health
Framework PyPI

FastMCP

The fast, Pythonic framework for building Model Context Protocol servers, clients, and apps

27,661
Apache 2.0
Used by 14
67Health
Library npm

mathjs

Extensive math library for JavaScript and Node.js with big numbers, complex numbers, units, and matrices.

15,072
Apache 2.0
Used by 14
46Health
Library Go

jsoniter

A high-performance, 100% compatible drop-in replacement for Go's encoding/json.

13,867
MIT
Used by 14
77Health
Library PyPI

structlog

Structured, typed logging for Python built on plain functions and dictionaries instead of a bespoke logging DSL.

4,951
Other
Used by 14
60Health
Library npm

@apidevtools/swagger-parser

Parses, validates, and dereferences Swagger 2.0 and OpenAPI 3.x specs in Node.js and browsers

1,207
MIT
Used by 14
65Health
SDK npm

libSQL Client (TypeScript)

The TypeScript/JavaScript driver for libSQL and Turso databases

576
MIT
Used by 14
90Health
Library npm

@xmldom/xmldom

A pure JavaScript, W3C-standard DOMParser and XMLSerializer for parsing and building XML/HTML documents

465
MIT
Used by 14
91Health
Framework Go

Echo

A minimalist, high-performance Go web framework with a radix-tree router, built-in middleware chain, and first-class HTTP/2 support.

32,705
MIT
Used by 13
92Health
Library PyPI

networkx

Python library for creating, manipulating, and analyzing complex networks and graphs.

17,258
BSD 3
Used by 13
78Health
Library PyPI

prometheus-client

The official Python instrumentation library for exposing Prometheus metrics

4,371
Apache 2.0
Used by 13
96Health
SDK PyPI

Slack SDK for Python

The official Python SDK for building apps, bots, and integrations on the Slack Platform.

4,012
MIT
Used by 13
69Health
Library npm

colord

A tiny, dependency-free TypeScript library for parsing, converting, and manipulating colors in any format.

1,888
MIT
Used by 13
65Health
Library npm

node-sql-parser

Parses SQL statements into an AST and converts them back to SQL across a dozen database dialects.

1,041
Apache 2.0
Used by 13
92Health
SDK PyPI

clickhouse-connect

ClickHouse's official high-performance Python driver, with native Pandas, NumPy, PyArrow, and Superset support

521
Apache 2.0
Used by 13

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