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

45Health
Library npm

zod-to-json-schema

Converts Zod validation schemas into standard JSON Schema, ready for OpenAPI, OpenAI, and JSON Schema draft 7 consumers.

1,254
Other
Used by 30
66Health
Library Go

color

Colorized terminal output for Go with ANSI escape codes, 24-bit RGB, and built-in Windows support.

8,002
MIT
Used by 29
48Health
Library Go

go-cmp

A safer, more powerful alternative to reflect.DeepEqual for comparing Go values in tests.

4,678
BSD 3
Used by 29
45Health
Library npm

JSON5

JSON for humans: an extended JSON syntax with comments, trailing commas, and unquoted keys for hand-written config.

7,168
MIT
Used by 28
52Health
Library Go

godotenv

A Go port of Ruby's dotenv that loads environment variables from .env files into your process, with zero third-party dependencies.

10,643
MIT
Used by 27
91Health
Library Go

compress

A Go compression toolkit with a pure-Go Zstandard codec, S2 (a faster Snappy), and assembly-accelerated drop-in replacements for gzip, zip, zlib, and lzw.

5,650
BSD 3
Used by 27
90Health
Library PyPI

jsonschema

The reference implementation of JSON Schema validation for Python, supporting every draft from 3 to 2020-12.

4,986
MIT
Used by 27
91Health
Framework npm

Fastify

A fast and low-overhead web framework for Node.js, built around schema-based validation and a plugin architecture

37,205
MIT
Used by 25
95Health
SDK Go

go-github

A comprehensive Go client library for the GitHub REST API, covering everything from repos and issues to Actions, Apps, and enterprise admin endpoints.

11,309
BSD 3
Used by 23
77Health
Framework Go

Gin

A high-performance HTTP web framework for Go, built on a zero-allocation radix-tree router with an Express.js-style API.

89,268
MIT
Used by 22
81Health
Library Go

chi

A lightweight, idiomatic Go HTTP router built entirely on net/http, for composing middleware and mounting REST APIs without a framework.

22,891
MIT
Used by 22
61Health
Library Go

gjson

Fast, dependency-light JSON value extraction for Go using dot-notation paths.

15,557
MIT
Used by 22
92Health
Library Go

gopsutil

A Go library that ports Python's psutil, giving programs a pure-Go way to read CPU, memory, disk, network, host, sensor, and process statistics across every major OS.

11,929
BSD 3
Used by 22
88Health
Library Go

go-sqlite3

A self-contained CGO driver that brings SQLite3 to Go's standard database/sql interface.

9,242
MIT
Used by 22
97Health
SDK Go

azcore

The core HTTP pipeline, credentials, and error types shared by every Azure SDK for Go client library.

1,855
MIT
Used by 22
98Health
Framework Composer

Laravel

The expressive, elegant PHP framework for building modern web applications

34,931
MIT
Used by 21
91Health
Library Go

testcontainers-go

Programmatically spin up disposable Docker containers for Go integration and smoke tests, then tear them down automatically.

4,993
MIT
Used by 21
46Health
Library npm

jsonrepair

Repair invalid or broken JSON documents — missing quotes, trailing commas, truncation, and more

2,408
Other
Used by 21
65Health
Library Go

semver

A fast, spec-compliant Go library for parsing, comparing, and sorting semantic versions with npm-style range constraints.

1,438
MIT
Used by 21
68Health
Library PyPI

orjson

A fast, correct, Rust-backed JSON library for Python with native dataclass, datetime, and numpy support

8,234
Apache 2.0
Used by 19
47Health
Library npm

node-xml2js

XML-to-JavaScript-object parser and builder for Node.js

4,959
MIT
Used by 19
54Health
Library Composer

Collision

Beautiful command-line error reporting for PHP apps and test suites

4,659
MIT
Used by 18
92Health
Framework Go

urfave/cli

A declarative, dependency-free Go package for building fast, friendly command-line tools.

24,260
MIT
Used by 17
91Health
Library Go

goldmark

A CommonMark-compliant Markdown parser and renderer for Go, built around a walkable AST and pluggable extensions.

5,041
MIT
Used by 17

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