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

93Health
Framework PyPI

Starlette

A lightweight ASGI framework/toolkit for building async web services and apps in Python

12,618
BSD 3
Used by 21
53Health
Library Cargo

DashMap

A blazing-fast concurrent HashMap for Rust that shards state across locks instead of using one global RwLock.

4,113
MIT
Used by 21
89Health
Library PyPI

filelock

A platform-independent file lock for Python that supports the with-statement.

972
MIT
Used by 21
83Health
Framework PyPI

Flask

A lightweight WSGI web framework for Python that scales from a single file to complex applications.

74,737
BSD 3
Used by 20
84Health
Library npm

http-proxy-middleware

The one-liner Node.js proxy middleware for connect, express, next.js, hono, and more.

11,126
MIT
Used by 20
75Health
Library Go

go-jose

The canonical Go implementation of JSON Web Encryption, Signature, and Token standards (JWE, JWS, JWT).

534
Apache 2.0
Used by 20
45Health
Library Go

cors

A spec-compliant, configurable CORS middleware for Go's net/http, with drop-in compatibility for most Go web frameworks.

2,898
MIT
Used by 19
49Health
Library Cargo

hmac

Generic, pure-Rust implementation of Hash-based Message Authentication Code (HMAC)

372
Other
Used by 19
96Health
SDK Cargo

vercel_runtime

The official Rust runtime for writing and deploying serverless functions on Vercel.

16,243
Apache 2.0
Used by 18
91Health
Library npm

Effect

A TypeScript library and ecosystem for building robust, type-safe, concurrent applications with a full functional effect system

16,037
MIT
Used by 18
59Health
Library npm

ssh2

Pure-JavaScript SSH2 client and server library for Node.js, with SFTP, exec, shell, and port forwarding support.

5,821
MIT
Used by 18
43Health
Library Go

otp

A Go library for generating and validating TOTP and HOTP one-time passcodes, compatible with Google Authenticator.

2,956
Apache 2.0
Used by 18
39Health
Library Go

xxhash

A pure-Go implementation of the 64-bit xxHash (XXH64) algorithm with hand-written amd64 and arm64 assembly for maximum throughput.

2,142
MIT
Used by 18
60Health
Library Cargo

async-stream

Build asynchronous streams in Rust using async/await notation instead of hand-written state machines

776
MIT
Used by 18
48Health
Library npm

forge

A native, pure-JavaScript implementation of TLS and PKI cryptography for building crypto-based Node.js and browser apps.

5,331
Other
Used by 17
47Health
Library npm

cuid2

Secure, collision-resistant unique IDs for JavaScript, built to resist guessing and horizontal-scale collisions.

3,399
MIT
Used by 17
72Health
Library npm

p-map

Map over promises concurrently, with controlled concurrency, backpressure, abort signals, and error aggregation.

1,511
MIT
Used by 17
35Health
Library npm

object-hash

Deterministic SHA1/MD5 hashing for any JavaScript value or object, in Node.js and the browser.

1,473
MIT
Used by 17
41Health
Library npm

cross-spawn

A cross-platform drop-in replacement for Node's spawn and spawnSync that fixes Windows-only child_process bugs.

1,171
MIT
Used by 17
74Health
Library npm

node-jwks-rsa

A Node.js library that retrieves RSA, EC, and OKP signing keys from a JWKS endpoint, with caching and rate limiting built in.

875
MIT
Used by 17
95Health
Tool Go

grpc-gateway

A protoc plugin that generates a reverse-proxy server, turning RESTful HTTP/JSON requests into gRPC calls from the same service definitions.

20,003
BSD 3
Used by 16
65Health
Library Cargo

parking_lot

A faster, smaller drop-in replacement for Rust's standard library Mutex, RwLock, Condvar, and Once.

3,410
Apache 2.0
Used by 16
94Health
Library npm

@nestjs/swagger

The official NestJS module that generates OpenAPI (Swagger) documentation from your controllers and DTOs

1,894
MIT
Used by 16
84Health
Library PyPI

greenlet

Lightweight in-process coroutines for cooperative concurrency in Python

1,849
Other
Used by 16

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