Open-source software

A tool for downloading and running open large language models on your own computer or server, with a local REST API.

A virtual whiteboard for sketching hand-drawn style diagrams, available as a web app and as an embeddable React component.

A self-hosted photo and video manager with mobile apps that back up media from your phone to your own server.

A Postgres-based backend platform that bundles a database, auth, auto-generated APIs, storage, realtime and edge functions, available hosted or self-hosted.

A PDF editor and processor with many tools that runs in the browser, on the desktop or on your own server.

A self-hosted monitoring tool that checks websites and services and sends alerts and status pages.

A smart home hub that runs on your own hardware and controls devices locally, with automations and a web dashboard.

A continuous file synchronization program that syncs folders directly between your own devices without a central server.

A Notion-style workspace for docs, databases and wikis, with local-first desktop and mobile apps.

A dashboard and visualization tool that queries many data sources such as Prometheus, with a commercial Enterprise edition and a hosted Grafana Cloud.

An open-source data exploration and visualization platform for building charts and dashboards over SQL databases, run by the Apache Software Foundation.

A headless CMS written in JavaScript/TypeScript that you self-host, with a configurable admin panel and REST and GraphQL APIs.

An unofficial, Rust-written server that implements the Bitwarden client API so the official Bitwarden apps can use a server you host yourself.

An app for chatting with your documents using any LLM and vector database, available as a desktop app or a multi-user Docker server.

A metrics monitoring and alerting system that stores time series locally and is queried with PromQL; a CNCF graduated project.

A platform for deploying applications, databases and services on your own servers over SSH.

An open-source backend in a single executable with an embedded SQLite database, realtime subscriptions, user auth, file storage and an admin dashboard.

A browser-based design and prototyping tool where designers and developers work on the same files, with SVG as its native format.

An open-source project and issue tracker with cycles and modules, built as a Jira alternative.

A search engine for apps and sites with typo tolerance, filters, and hybrid keyword and vector search, run as a single binary or as a managed cloud service.

A lightweight self-hosted Git service with issues, pull requests, a package registry and built-in CI (Gitea Actions).

A modern open-source CRM you can self-host and extend through its API.

A free, self-hosted media server for streaming your own movies, shows, music, live TV, books and photos to apps on most devices.

An open-source backend platform with authentication, databases, storage, functions, messaging and hosting, available as managed cloud or self-hosted.

A note-taking app for desktop, mobile and terminal that syncs through your own storage or a Joplin server, with optional end-to-end encryption. The Joplin Server for self-hosted sync is under a separate personal-use license and is not open source.

A publishing platform for blogs, newsletters and paid memberships, which you can self-host or use as the managed Ghost(Pro) service.

A suite of web-based business apps (CRM, sales, inventory, accounting, HR and more) that you can self-host in a free Community edition or buy as Enterprise.

A column-oriented SQL database for real-time analytics, available as open-source software or as the managed ClickHouse Cloud service.

A federated social network server that you run yourself and that connects with other Mastodon servers.

A business intelligence tool where people ask questions of their databases through a query builder or SQL and build dashboards.

The open-source community edition of Cal.com: a scheduling and booking-page tool you can self-host. It is MIT licensed; Cal.com itself has been closed source since April 2026.

A discussion forum platform for communities that you can install with Docker on your own server or use as official Discourse hosting.

A document management system that turns scanned paper documents into a searchable online archive.

A self-hostable team communications platform with chat, channels, and omnichannel customer messaging.

A self-hosted chat interface that works with many AI model providers, with SSO and agents.

A TypeScript CMS and application framework that runs inside Next.js and generates an admin panel and APIs from one config.

A privacy-first, open-source knowledge base and outliner that stores notes locally and links them with [[backlinks]].

A self-hosted photo library that uses AI-based tagging and face and place recognition to browse and search your pictures and videos.

A product analytics platform that also includes session replay, feature flags, experiments and surveys, offered as PostHog Cloud or a self-hosted deployment.

A self-hosted, privacy-focused web analytics tool that works without cookies.

A self-hostable team chat platform with channels, threads and integrations, popular for secure and technical teams.

A web UI for managing containers on Docker, Swarm, Podman, Kubernetes and ACI, offered as a free Community Edition and a paid Business Edition.

A customer support inbox that brings live chat, email and social channels into one shared view for support teams.

An identity and access management server that provides single sign-on with OpenID Connect, OAuth 2.0 and SAML.

A self-hosted file sync and sharing platform with an app store for calendar, contacts, mail and chat.

A Node.js commerce platform with a built-in framework for building custom online stores, marketplaces and B2B commerce apps.

An open-source platform for tracing, evaluating and managing prompts for LLM applications.

An observability platform built on OpenTelemetry that combines logs, metrics, traces, alerts and dashboards in one place.

A self-hosted platform as a service that runs on one server, builds apps from git push using Docker, and accepts Heroku-style buildpacks.

A browser-based video conferencing server and web app that needs no account to join, which you can run yourself or use through 8x8's hosted services.

A local-first personal finance and envelope budgeting app that you can self-host, with optional sync across devices.

Lightweight, cookieless, privacy-focused web analytics with a self-hostable Community Edition.

An open-source Laravel and Vue.js e-commerce platform for single stores, B2B shops and multi-vendor marketplaces.

An open-source, in-memory key/value datastore for caching, queues and primary-database use, forked from Redis and backed by the Linux Foundation.

A typo-tolerant search engine for sites and apps that you run yourself as a single binary or use as a managed cluster on Typesense Cloud.

A Java-based, self-hosted automation server with a large plugin ecosystem, mostly used to build, test and deploy software.

A self-hostable team chat app that organizes every conversation into topics inside channels.

A self-hosted identity provider that offers SSO with OIDC, SAML, LDAP, SCIM, RADIUS and a reverse proxy.

A workflow automation tool with a no-code builder and a TypeScript integration framework, available self-hosted or as a cloud service.

A self-hosted personal finance manager for tracking income and expenses, with budgets, categories, rules and a REST API.

A DevOps platform with Git hosting, issue tracking and CI/CD in one application, offered as a Community Edition, a self-managed Enterprise Edition and GitLab.com.

A self-hosted newsletter and mailing list manager that ships as a single binary and uses your own SMTP provider.

A flow-based, low-code tool for wiring together devices, APIs and online services with a browser editor, built on Node.js.

A GraphQL-only, API-first commerce platform written in Python and Django for building headless online stores.

An open-source collaborative wiki and documentation tool with real-time editing, spaces, groups and page history.

A self-hosted web analytics platform written in PHP that stores its data in your own MySQL or MariaDB database.

An open-source Kanban board with boards, lists, cards, swimlanes and real-time updates that you can host yourself.

A password manager with web, desktop, browser, mobile and CLI clients, whose server can be hosted by Bitwarden or run on your own machines with Docker.

A self-hosted wiki and documentation platform that organises content as shelves, books, chapters and pages.

An open-source security platform for threat detection, log analysis, file integrity monitoring and compliance (SIEM and XDR), with a central server, indexer, dashboard and endpoint agents.

A web-based project management system for classic, agile and hybrid projects, with Gantt charts, boards, time tracking and a work package model.

An all-in-one mail and collaboration server written in Rust, with JMAP, IMAP, POP3, SMTP, CalDAV, CardDAV and WebDAV, offered in a free Community edition and a paid Enterprise edition.

A distributed search and analytics engine, with dashboards, vector search and observability tools, developed under the Linux Foundation.

A Docker-based mail server suite that bundles Postfix, Dovecot, Rspamd, SOGo webmail and a web admin interface.

An open-source survey and feedback tool for in-product and link surveys that you can self-host.

An open-source marketing automation platform for email campaigns, landing pages, lead scoring and multichannel messaging that you host yourself.

An open-source HR and payroll system covering employee records, leave, attendance, expenses, appraisals and payroll, built on the Frappe Framework.

A diagramming tool for flowcharts, network and UML diagrams that runs in the browser or as a desktop app and lets you choose where files are stored.

A relational SQL database server, created by MySQL's original developers, available as free Community Server and as a commercial Enterprise Platform with support.

A lightweight, container-based CI/CD engine that you host yourself and connect to your Git forge.

A container-based CI/CD system that you host yourself, where pipelines are defined in YAML as resources, jobs and tasks.

A learning management system for schools, universities and companies that you run on your own web server or use through MoodleCloud.

A browser-based, multilingual IMAP webmail client written in PHP that you host in front of your own mail server.

A learning management system developed by Instructure, released under AGPL-3.0 for self-hosting.

A web-based helpdesk and ticketing system that handles email, chat, phone and social channels in one place.

A self-hosted to-do and task manager with lists, Kanban, Gantt and table views, shared projects and a full API.

A self-hosted help desk and shared mailbox built with PHP and Laravel, with many extras sold as separate modules.

An open-source form builder with a no-code editor, embeds, integrations and a hosted cloud or a Docker self-hosted option.

A PHP survey platform with conditional logic, multilingual surveys and a remote-control API, available self-hosted or as a paid cloud service.

A self-hosted CRM for managing leads, contacts, sales opportunities, marketing campaigns and support cases, with a PHP REST backend and a single-page web frontend.

An open-source newsletter tool for sending campaigns and building sign-up forms, which you can self-host or use as a paid cloud service.

A self-hosted file sync and sharing platform written in Go, shipped as a single binary or container, with desktop and mobile clients.

A self-hosted web app for creating invoices and estimates, recording payments and expenses, and managing customers.

A vendor-neutral home automation server that connects many smart home technologies and runs on your own hardware.

A web-based HR management system covering employee records, leave, time, recruitment and performance, offered as a free open-source Starter edition and paid Advanced edition.

An open-source project management tool for agile teams with Scrum backlogs and sprints, Kanban boards, epics, issues and a wiki.

A self-hosted applicant tracking system and recruiting CRM for managing jobs, candidates, companies, contacts and submissions.

A self-hosted file sync and sharing system built around libraries that can be synced separately and optionally encrypted.

An open-source CRM for sales, marketing and customer service that you host on your own PHP and MySQL-compatible stack, maintained as two lines: SuiteCRM 7 and SuiteCRM 8.

A Sentry-API-compatible error tracking platform that stores events in PostgreSQL and can run on a small server.

A community-run, self-hosted Git forge with issues, pull requests, a package registry and Forgejo Actions CI.