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

78Health
Library npm

micromark

The smallest 100% CommonMark-compliant markdown parser, with GFM and MDX support

2,225
MIT
Used by 11
36Health
Library npm

bytes

Tiny utility for parsing and formatting byte strings like '1kb'

474
MIT
Used by 11
95Health
Library npm

@rjsf/core

The React engine that turns a JSON Schema into a fully working form

15,905
Apache 2.0
Used by 10
42Health
Library Go

sjson

A fast, dependency-light Go library for setting and deleting values in JSON documents by dot-path, without full unmarshaling.

2,734
MIT
Used by 10
88Health
Library Composer

Symfony HttpClient

A low-overhead, high-performance PHP HTTP client with sync, async, and streaming support

2,030
MIT
Used by 10
74Health
Library npm

conf

Simple, schema-validated config file persistence for Node.js apps and CLI tools

1,346
MIT
Used by 10
86Health
Library Cargo

serde_with

Custom de/serialization helpers for Rust's serde, via the with and serde_as annotations

860
Apache 2.0
Used by 10
30Health
Library npm

Partial JSON

Parses incomplete JSON strings streamed token-by-token from an LLM into usable JavaScript values as they arrive.

244
MIT
Used by 10
81Health
Library Composer

Symfony Process

Execute and manage sub-processes from PHP with a safe, cross-platform, streaming API

7,455
MIT
Used by 9
87Health
Library Composer

Symfony VarDumper

A better dump() function for PHP that walks and renders any variable clearly.

7,425
MIT
Used by 9
87Health
Library npm

html-react-parser

Converts HTML strings into React elements, working seamlessly on both server and client

2,429
MIT
Used by 9
74Health
Library PyPI

feedparser

Parses RSS, Atom, RDF, CDF, and JSON feeds into one normalized Python dictionary.

2,426
Other
Used by 9
56Health
Library Cargo

tree-sitter-javascript

JavaScript and JSX grammar for the tree-sitter incremental parsing library

494
MIT
Used by 9
88Health
Library Composer

PHPMailer

The classic full-featured email creation and sending library for PHP

22,298
LGPL-2.1
Used by 8
98Health
Library Composer

PhpSpreadsheet

Read, write, and manipulate Excel, CSV, and ODS spreadsheet files in pure PHP with no external office suite required.

13,990
MIT
Used by 8
87Health
Framework Composer

Symfony Console

The PHP framework component for building beautiful, testable command-line applications

9,811
MIT
Used by 8
85Health
Library PyPI

json_repair

Repair malformed JSON from LLMs, APIs, logs, and user input — a drop-in fallback for json.loads().

5,113
MIT
Used by 8
89Health
Library PyPI

msgspec

A fast, zero-cost serialization and validation library for JSON, MessagePack, YAML, and TOML in Python.

4,129
BSD 3
Used by 8
85Health
SDK Composer

Sentry for Laravel

Official Sentry SDK for Laravel with automatic error, log, and performance tracing capture

1,352
MIT
Used by 8
79Health
Library npm

officeParser

Parse Office documents into a rich AST and generate Markdown, HTML, PDF, or RAG chunks

551
MIT
Used by 8
67Health
Library npm

json-2-csv

Converts arrays of JSON documents to RFC 4180 compliant CSV and back, with native support for nested sub-documents.

458
MIT
Used by 8
57Health
Library Cargo

humantime

A fast parser and formatter for std::time::Duration and SystemTime in human-friendly notation

396
Apache 2.0
Used by 8
87Health
Framework npm

oclif Core

The Node.js framework that powers Salesforce CLI and Heroku CLI, providing flag parsing, help generation, and a plugin system for building CLIs.

317
MIT
Used by 8
87Health
Library Composer

Monolog

The PSR-3 logging library that sends PHP logs to files, sockets, databases, and dozens of web services

21,402
MIT
Used by 7

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