PostgreSQL

Object-relational mapping library for Ruby that maps classes to database tables, distributed as part of Rails.

Workflow automation platform with a self-hostable server and an embeddable builder that a SaaS product can place inside its own app.

Web-based database management tool distributed as a single PHP file.

Database management tool written in PHP that is distributed as a single file and built on Adminer.

Open-source proof-of-work CAPTCHA widget and server verification libraries, with a paid self-hosted server (Sentinel) and a hosted service (Cloud).

Java content management system for websites, intranets and portals, published under the Apache License.

Java suite of enterprise business applications for ERP, CRM and e-commerce, built on an entity engine, a service engine and a widget-based UI.

Java-native API gateway for HTTP, Dubbo, gRPC and WebSocket services, with plugins for authentication, traffic control and observability.

Application performance monitoring system for distributed systems, microservices and container-based architectures.

Open source low-code platform for building internal tools, admin panels and dashboards.

Authentication library for JavaScript web frameworks, with OAuth and OpenID Connect providers, email sign-in and credentials.

Open-source authentication and authorization server and portal that adds multi-factor authentication and single sign-on in front of web applications.

Framework-agnostic authentication and authorization framework for TypeScript.

Dashboard UI for Bull and BullMQ job queues, mounted into an existing Node server or run as a standalone CLI or Docker image.

Open-source consent manager that renders cookie banners, a preferences dialog and consent-gated scripts for JavaScript frameworks.

Content management system for Ruby on Rails, distributed as a gem and run inside a Rails application.

Open-source identity and access management and single sign-on platform with a web admin console.

PHP MVC web framework with a small footprint and few configuration requirements.

Self-hosted web comment engine that adds threaded comments, voting and moderation to web pages through an embedded widget.

Open-source platform for building data-driven web applications, with a GraphQL API, PostgreSQL and a React administration interface.

Linux control panel for managing web hosting, websites and servers on dedicated servers and VPS, with a free core and a paid CWPpro edition.

Open-source reactive database and backend for web apps, with server functions written in TypeScript and a cloud platform run by the maker.

Proprietary web hosting control panel and server management software, sold as cPanel & WHM licenses for servers that host websites.

Python web framework for data-centric applications built on an explicit schema, with a query language and components called cubes.

Desktop database management tool and SQL client for many SQL and NoSQL databases, with a free community edition.

Safe, extensible ORM and query builder for Rust.

Python web framework with an ORM, URL routing, templating, forms and an automatic admin interface.

PHP database abstraction layer with an object-oriented API for queries and for schema introspection and management.

Open-source PHP engine for publishing blogs, with several blogs and users in one installation.

Java content management system with an admin console, REST and GraphQL APIs and multi-site management, distributed as a Docker image and as a managed cloud service.

Embedded headless CMS that runs inside a Nuxt or Next.js app, with a typed local API, a REST API and an admin at /admin.

Self-hosted server management panel that deploys apps, databases and templated services on servers the user runs, using Docker.

Full-stack TypeScript CMS built on Astro, with an admin panel, a REST API and a plugin system, that runs on Cloudflare or a Node.js server.

Backend framework for TypeScript and Go in which application code declares the infrastructure it uses, such as databases, Pub/Sub and cron jobs.

Hosting control panel for running websites, email, databases and backups across one or more Linux servers in a single cluster.

Open-source TypeScript e-commerce platform built on Node.js and PostgreSQL, with a GraphQL API and React storefront and admin.

Server control panel for creating and managing websites, email accounts, databases, SSL certificates and backups on a Linux server.

Open-source feature flag and remote config platform, available self-hosted or as a cloud service, with SDKs for web, mobile and server-side apps.

Full-text search library for browsers and Node.js that keeps its index in memory or in a database.

Open-source experience management and survey platform, self-hosted or offered as a hosted cloud service.

Python and JavaScript low-code web framework for building data-driven web applications, with a built-in admin interface, roles and permissions.

Open-source error tracking platform that works with Sentry client SDKs, self-hosted or hosted by GlitchTip.

Plugin-first CMS with a Go backend, a React admin built on the Gutenberg block editor and optional Astro themes, backed by PostgreSQL.

Go ORM library that maps structs to database tables, with associations, hooks, transactions and auto migrations.

Open source application for querying, visualizing, alerting on and exploring metrics, logs and traces.

Server for storing, accessing and encrypting secrets, with an HTTP API, a CLI and a web interface, that applications can call for credentials and keys.

Open-source GraphQL server that generates a GraphQL API over existing databases and other data sources, with a hosted Hasura Cloud edition.

Web control panel for Debian and Ubuntu servers that manages web domains, mail, DNS zones and databases from one dashboard.

Open-source user infrastructure platform for authentication, teams, payments, email and analytics, with a managed cloud and a self-hostable server.

Self-hosted system for building agents that watch the web and incoming events and take automated actions on the user's behalf.

Open-source payments orchestration platform that routes transactions across payment processors, with a vault, a control center and reconciliation, self-hosted or hosted by Juspay.

Open-source platform for managing application secrets, certificates and cryptographic keys, with a CLI, SDKs and a self-hostable server alongside Infisical Cloud.

Workflow orchestration platform for durable functions with step retries, scheduling and flow control, run by applications through language SDKs and self-hostable as a single server.

Open-source backend for web and mobile apps with a client-side, real-time database, auth, permissions, storage and streams.

E-commerce plugin for the Grav CMS that adds a catalog, checkout, payments, shipping and customer accounts.

Open-source orchestration platform for data, AI and infrastructure workflows, defined in YAML and run on a server with a web UI.

Open source API gateway, built on NGINX, that routes, secures and transforms traffic to APIs through plugins, with a Kong Konnect SaaS option.

Open-source platform for tracing, evaluating and monitoring LLM applications, sent from application code through SDKs and OpenTelemetry.

PHP web application framework with routing, an ORM, templating, queues and scheduled jobs.

Desktop app for macOS and Windows that runs local PHP and Laravel sites on their own domains, with PHP versions and local services managed from one window.

Open-source local PHP development environment for Linux and macOS that runs sites, PHP versions and services as rootless Podman containers.

Open-source survey platform for creating surveys that respondents take through a link or an embed on a website.

Self-hosted ecommerce platform whose Go backend, GoCommerce, serves the API and an admin panel for a separate SvelteKit storefront.

Config-first web framework that builds business apps and internal tools from YAML configuration, served by a Node.js server.

SQL query builder, Active Record ORM and migrations library for AdonisJS applications.

Magnolia is a Java digital experience platform for managing and delivering web content, with a Community Edition under GPLv3 and a licensed DX Core.

Open-source headless commerce platform for Node.js with commerce modules, an admin dashboard and REST store and admin APIs.

Open-source headless platform for building multi-vendor marketplaces, built on the Medusa commerce core.

Workflow automation platform for building AI agents and workflows on a visual canvas, self-hosted or in the cloud.

Web admin interface for managing Nginx reverse proxy hosts, distributed as a Docker image with free Let's Encrypt certificates.

TypeScript server toolkit for full-stack servers with filesystem routing, storage, caching and a Vite plugin, deployable to Node.js, Bun, Deno and serverless hosts.

Spreadsheet-style interface for building online databases on SQLite, PostgreSQL or an existing database, self-hosted with Docker or offered as NocoDB Cloud.

Self-hostable HTTP publish-subscribe server that delivers published messages as push notifications to phones, desktops and browsers.

File-based content module for Nuxt that queries Markdown, YAML, CSV and JSON files from a Vue application.

OCaml framework for building client and server web and mobile applications as a single program.

Suite of web-based open source business apps, including a website builder and an e-commerce app.

Open source ecommerce platform written in PHP for running an online store on a web server.

Open-source usage metering and billing platform that ingests usage events and bills customers for the usage.

OpenID Certified OAuth 2.0 and OpenID Connect server that issues tokens and connects to an existing login and consent app.

Open source backend for web and mobile apps that runs on Node.js, stores data in MongoDB or PostgreSQL, and can be mounted on an Express app.

TypeScript framework that runs inside a Next.js app and generates an admin panel, database schema and REST, GraphQL and local APIs from one config, used as a headless CMS or application backend.

Open-source administration and development tool for PostgreSQL, run as a desktop application or as a web application.

PostgreSQL connection pooler, load balancer and database sharder written in Rust.

Embeddable WebAssembly build of PostgreSQL, packaged as a TypeScript and JavaScript library for the browser, Node.js, Bun and Deno.

Full-stack PHP web framework delivered as a PHP extension.

Proprietary hosting control panel for managing websites, DNS, mail and other services on Linux and Windows servers.

Open source website analytics tool that uses no cookies, offered as a managed service on poeticmetric.com or self-hosted with Docker Compose.

Standalone web server that serves a RESTful API directly from a PostgreSQL database schema.

Product analytics platform with session replay, feature flags, experiments, error tracking and surveys, self-hosted from its code or run as PostHog Cloud.

Python workflow orchestration framework that runs flows on schedules, events or API calls, with a self-hostable server.

TypeScript and Node.js object-relational mapper that generates a type-safe database client from a schema file.

Symfony-based content management system for websites, with Markdown or database content and an optional static export.

Java framework for building cloud-native applications that run on the JVM or as native executables.

Web application environment for Common Lisp, for personal websites and deployable applications.

Python library for building full-stack web apps, with the frontend compiled to React and the backend run as a Python server.

Full-stack web framework built on Web APIs that combines routing, data, UI and asset compilation in one stack.

Async web framework for Rust with typed routes, request guards and built-in form and JSON handling.

Ruby web application framework with an ORM, routing, ERB views, background jobs and built-in deployment tooling.

Distributed file system and S3-compatible object store, written in Go, shipped as one weed binary.

Services framework for .NET that builds HTTP and message-based web services from typed request DTOs.

Open-source observability platform built on OpenTelemetry that covers logs, metrics, traces, alerts and dashboards.

Self-hosted realtime server written in Rust that serves Pusher-compatible WebSocket and HTTP APIs.

Open-source commerce platform built on Ruby on Rails, with a REST API, TypeScript SDKs and a Next.js storefront.

Open-core PDF editing and processing platform for self-hosted servers and a hosted service, with a REST API.

Open source user authentication server, Core, with frontend and backend SDKs, self-hosted or as a managed cloud service.

Open source webhook service that sends webhooks with retries, signatures and a customer-facing portal, self-hosted or as a hosted service.

PHP full-stack web framework built from a set of reusable, standalone components.

Open-source durable execution platform whose server runs workflows and retries failed steps, self-hosted or as Temporal Cloud.

Express-like web framework for Node.js, written in TypeScript and published as native ESM.

Open-source low-code platform for building internal tools and dashboards on existing databases and APIs, self-hosted or as ToolJet Cloud.

Open-source platform for building durable AI agents and background tasks in TypeScript, offered as a cloud service and for self-hosting.

Python framework for semantic search, LLM pipelines and workflows, with an embeddings database, a web API and Docker images.

Open-source web and product analytics platform, self-hosted or offered as Umami Cloud.

Open-source user onboarding platform for in-app product tours, checklists and surveys.

Server-side Swift HTTP web framework for building backends, web apps, APIs and HTTP servers.

Open-source headless commerce framework built on Node.js and TypeScript, with a GraphQL API.

Low-code platform for building web and hybrid mobile applications, offered as a cloud service and as an on-premise installation.

Web-based administration tool for Unix-like servers that configures system files and server applications such as Apache HTTP Server, BIND and MySQL.

Open-source platform for running many PostgreSQL instances on Kubernetes, with copy-on-write branching and scale-to-zero.

Sync engine that keeps a client-side datastore of a web app in step with a Postgres database.