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

Kind1

Library4824 SDK549 Tool342 Framework214

Category

Utilities Ids Helpers1293 Serialization Data Formats487 UI Component Libraries383 Cli Terminal323 Authentication Authorization289 Cryptography Hashing259 Web Frameworks API Servers246 Build Tools Bundlers227 Image Media Processing213 Cloud Sdks200 Database Drivers Clients200 Async Concurrency Runtimes194

Tags1

React667 Python638 Javascript591 Rust485 Typescript408 Hacktoberfest308 PHP304 Nodejs280 Parser224 JSON205 Laravel203 Go192 Cpp8

Sort:Used by Most Apps

Used by Most Apps Health Score Most Stars A-Z

Showing 5 of 5929 packages

Library Cpp Clear all

tree-sitter-cpp

A fast, incremental C++ grammar for the tree-sitter parsing library

NVIDIA NCCL

Optimized primitives for collective multi-GPU and multi-node communication

ANTLR4 Python3 Runtime

The Python 3 runtime that generated ANTLR parsers and lexers depend on at execution time.

ConnectorX

The fastest, most memory-efficient way to load data from databases into Python and Rust DataFrames.

SimSIMD

SIMD-accelerated distance, dot-product, and similarity kernels for high-dimensional vectors.

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