Open source Postgres development platform bundling a database with auth, auto-generated APIs, realtime, storage, and edge functions.
FastAPI is a Python web framework for building APIs using standard type hints, with automatic OpenAPI and JSON Schema documentation.
Rust-native, event-driven engine for backtesting and live trading across multiple asset classes and venues, with Python strategy control.
TokenSpeed is an LLM inference engine built for agentic workloads, with a C++ scheduler control plane and Python execution plane.
Provides a PyTorch backend that runs PyTorch models and operations on Google's Tensor Processing Units (TPUs).
Self-hosted WhatsApp API gateway that exposes WhatsApp sessions, messaging, and webhooks over a REST API with a web dashboard.
Extensible HTTP/1-2-3 web server written in Go that obtains and renews TLS certificates automatically by default.
A full-stack TypeScript CMS built on Astro, with sandboxed plugins and Portable Text content storage.
Self-hostable Platform as a Service for deploying apps and databases on your own VPS, with Docker, Traefik, and backups.
Backend APIs, SQL Server database, and Docker deployment tooling for the Bitwarden password manager clients.
Distributed file and object storage system that serves S3, POSIX file system, and Iceberg/Lance table access from one Go binary.
Fork of Paper, the Minecraft server, that ticks independent chunk regions in parallel on a thread pool.
Static recompilation runtime libraries and analysis tools for translating PlayStation 3 binaries into native C/C++ executables.
Gin is a Go HTTP web framework with a Martini-like API built on httprouter for fast REST APIs and web services.
Ruby on Rails source code for Gumroad, an e-commerce platform that lets creators sell products directly to consumers.
Java framework for building distributed, long-running agents with an event stream, tool-call permissions, middleware, and sandboxed workspaces.
Distributed, Raft-replicated key-value store that serves as a reliable configuration and coordination backend for clusters.
Scheduled task runner that automates recurring Bilibili daily activities across multiple accounts, with a web panel and console host.
Offline IP-to-region lookup library and data management framework supporting IPv4 and IPv6 with xdb query clients.
Scalable MQTT broker and IoT messaging platform supporting MQTT 5.0, CoAP, LwM2M, and MQTT over QUIC, with a SQL rule engine and data bridges.
A PHP application server built on the Caddy web server, with worker mode, HTTP/3, and automatic HTTPS.
Official source repository for NGINX Open Source, a high-performance web server, reverse proxy, load balancer, and content cache.
Open source server powering lichess.org, a free, ad-free online chess platform with realtime games, analysis, and tournaments.
Typesense is an open-source, in-memory search engine with typo tolerance, faceting, geosearch, and vector search.
In-memory data structure store used as a cache, database, message broker, and vector/document query engine.
A free, cohort-based course teaching ML engineering: training models, exposing them via APIs, and deploying with Docker, Kubernetes, and AWS Lambda.
Open-source billing and webshop platform for hosting companies, handling subscriptions and customer services.
Open-source, self-hostable payments infrastructure in Rust that connects to many payment processors and offers routing, vault, and reconciliation modules.
A distributed database for financial transactions, built around debit/credit primitives with a consensus-replicated storage engine.
A PHP framework and set of reusable components for building web and console applications.
Distributed SQL query engine for big data analytics across many data sources, formerly known as PrestoSQL.
Self-hosted proxy subscription panel, a V2board fork in PHP/Laravel with Octane, supporting newer protocols and features.
Web-based point of sale system written in PHP on CodeIgniter 4, backed by MySQL or MariaDB, with inventory, sales, and reporting.
Cross-platform .NET framework for building cloud-connected web, IoT, and mobile backend applications.
A PHP library for composing and sending email with SMTP, attachments, HTML bodies, and address validation.
Self-hosted, federated social network server implementing ActivityPub for publishing posts, media, and following users across servers.
Open-source Ruby commerce platform with REST APIs, TypeScript SDKs, an admin dashboard, and a Next.js storefront.
Self-hostable web time-tracking application for timesheets, reports, invoices, and team management.
Source-available invoicing app for invoices, quotes, projects, expenses, and time tracking, built on Laravel and offered hosted or self-hosted.
Phoenix is a web framework for Elixir for building HTTP APIs, server-rendered apps, and realtime features.
Open-source blockchain explorer for viewing, searching, and verifying transactions, accounts, and contracts on EVM chains.
Enterprise low-code platform (Spring Boot and Vue3) that generates frontend, backend, and database code from natural-language prompts or a code generator.
Source for Firebase's open-source Apple platform libraries, covering auth, Firestore, messaging, storage, and more for iOS and macOS apps.
Distributed graph database in Rust that stores its data durably on S3-compatible object storage and serves OpenCypher over Bolt and HTTP.
Erlang programming language runtime and the OTP libraries and design principles for building fault-tolerant, soft real-time systems.
Federated, ad-free photo sharing social network built on ActivityPub and the Laravel PHP framework.
Git mirror of the WordPress core Subversion repository, used as the development source for WordPress contributions.
Apache DataFusion Comet is a plugin that accelerates Apache Spark queries by running operators and expressions natively on Arrow columnar data.
PHP logging library that sends logs to files, sockets, email, databases and web services via a PSR-3 compatible API.
Source for the .NET runtime, base class libraries, and the dotnet host installers across supported platforms.
Middleware plugin that offloads Spark SQL physical plan execution to native engines like Velox and ClickHouse.
AWS-LC is a general-purpose cryptographic library (libcrypto/libssl) maintained by the AWS Cryptography team, derived from BoringSSL and OpenSSL.
Open-source Erlang server for XMPP chat, MQTT brokering, and SIP voice/video signaling, built for scale.
Self-hosted Git web platform written in Scala, offering repository hosting, issues, pull requests, and wiki.
Core Solidity smart contracts for Uniswap v4, a singleton automated market maker with extensible pools and hooks.
Gas-optimized Solidity snippets and contract libraries for Ethereum, including ERC20, ERC721, and ERC1155 implementations.
Solidity contracts from Uniswap providing a unified token approval and signature-based transfer system for ERC20 tokens.
Solidity smart contracts for Across, a cross-chain token bridge with a HubPool on Ethereum and SpokePools on other networks.
Gas-optimized Solidity building blocks for smart contract development, including tokens, auth, math, and utility contracts.
Swift implementation of a large part of Apple's CryptoKit API for Linux and ARM64 Windows, backed by vendored BoringSSL and XKCP.