A curated list of 450+ open-source alternatives to popular SaaS products.
Stop paying for what you can host yourself. Build sovereign infrastructure with AltStack.
Explore the Directory β’ Self-Hosted Configurator β’ Self-Hosting Guides β’ Request a Tool
--- ## π Why Sovereign Infrastructure? Every SaaS you pay for is a piece of your sovereign control you are leasing. The mission of **AltStack** is to provide the data and deployment configurations necessary to replace the "Big Tech" stack with a **Sovereign Stack** you own. This repository serves as the **Data HQ** for [The AltStack](https://thealtstack.com). Every tool listed here is vetted for quality, activity, and self-hostability. See [CRITERIA.md](CRITERIA.md) for the full vetting standards. ## π Quick Start (Mini-Stacks) Get up and running in under 2 minutes. These are "Development Mode" snippets. For production-hardened setups (SSL, Backups, Auth), follow the links to The AltStack Documentation. ### π¦ PocketBase (BaaS) The fastest way to get a backend with Auth, Database, and Admin UI. ```yaml # docker-compose.yml services: pocketbase: image: mujo-code/pocketbase:latest container_name: pocketbase ports: - "8090:8080" volumes: - ./pb_data:/pb_data restart: unless-stopped ``` π [Open in Self-Hosted Configurator](https://thealtstack.com/self-hosted/pocketbase) β’ [Deployment Guide](https://docs.thealtstack.com/deploy/pocketbase) ### π Plausible Analytics (Privacy-First) Lightweight, open-source analytics. ```yaml # docker-compose.yml (Simplified) services: plausible: image: plausible/analytics:latest ports: - "8000:8000" env_file: .env ... ``` π [Open in Self-Hosted Configurator](https://thealtstack.com/self-hosted/plausible) β’ [Full Self-Hosting Guide](https://docs.thealtstack.com/deploy/plausible) --- ## π οΈ Browse by Category - [ποΈ Backend as a Service](#-backend-as-a-service-baas) β [Compare all on thealtstack.com](https://thealtstack.com/best/backend-as-a-service) - [π¬ Communication](#-communication--collaboration) β [Compare all on thealtstack.com](https://thealtstack.com/best/communication) - [π Analytics & BI](#-analytics--bi) β [Compare all on thealtstack.com](https://thealtstack.com/best/analytics) - [π Project Management](#-project-management) β [Compare all on thealtstack.com](https://thealtstack.com/best/project-management) --- ## π The Awesome Alternatives List ### ποΈ Backend as a Service (BaaS) *Alternatives to **Firebase** and **AWS Amplify*** - **[Supabase](https://github.com/supabase/supabase)** - The open source Firebase alternative with a dedicated Postgres database. - **[Appwrite](https://github.com/appwrite/appwrite)** - A complete backend for Flutter, Web, and Mobile developers. - **[PocketBase](https://github.com/pocketbase/pocketbase)** - Open source realtime backend in 1 file (Go & SQLite). - [π **Compare BaaS Alternatives on AltStack**](https://thealtstack.com/best/backend-as-a-service) ### π¬ Communication & Collaboration *Alternatives to **Slack**, **Zoom**, and **Microsoft Teams*** - **[Mattermost](https://github.com/mattermost/mattermost)** - Open source platform for secure collaboration across the SDLC. - **[Rocket.Chat](https://github.com/RocketChat/Rocket.Chat)** - The Secure CommsOSβ’ for mission-critical operations. - **[Jitsi Meet](https://github.com/jitsi/jitsi-meet)** - Fully encrypted, 100% open source video conferencing. - [π **Explore Communication Stacks on AltStack**](https://thealtstack.com/best/communication) ### π Analytics & BI *Alternatives to **Google Analytics**, **Mixpanel**, and **Tableau*** - **[Plausible](https://github.com/plausible/analytics)** - Simple, lightweight, and privacy-friendly web analytics. - **[PostHog](https://github.com/PostHog/posthog)** - Product analytics, session recording, and feature flags. - **[Matomo](https://github.com/matomo-org/matomo)** - The leading open source Google Analytics alternative. - **[Metabase](https://github.com/metabase/metabase)** - The simplest way to get business intelligence throughout your company. - **[Apache Superset](https://github.com/apache/superset)** - Modern data exploration and visualization platform. - [π **Check Analytics on AltStack**](https://thealtstack.com/best/analytics) ### π Project Management *Alternatives to **Jira**, **Asana**, and **Monday.com*** - **[Plane](https://github.com/makeplane/plane)** - Beautiful open-source Jira/Linear alternative. - **[Taiga](https://github.com/taigaio/taiga-back)** - Agile project management for multi-functional teams. - **[OpenProject](https://github.com/opf/openproject)** - Powerful classic project management and collaboration. - [π **Self-host Project Management on AltStack**](https://thealtstack.com/best/project-management) ### π¨ Design & Creative *Alternatives to **Photoshop**, **Figma**, and **Illustrator*** - **[Penpot](https://github.com/penpot/penpot)** - The open-source design tool for design and code collaboration (Figma alternative). - **[GIMP](https://github.com/GNOME/gimp)** - Professional-grade photo editing tools (Photoshop alternative). - **[Krita](https://github.com/KDE/krita)** - Open source digital painting (Illustrator/Corel alternative). - [π **Design Tools on AltStack**](https://thealtstack.com/best/design) ### π Productivity & Knowledge *Alternatives to **Notion**, **Microsoft 365**, and **Google Workspace*** - **[AppFlowy](https://github.com/AppFlowy-IO/AppFlowy)** - Privacy-focused Notion alternative built in Rust. - **[AFFiNE](https://github.com/toeverything/AFFiNE)** - Next-gen knowledge base that brings planning and creation together. - **[ONLYOFFICE](https://github.com/ONLYOFFICE/DocumentServer)** - Highly compatible MS Office online editors. - [π **Productivity Alternatives on AltStack**](https://thealtstack.com/best/productivity) ### π Security & IAM *Alternatives to **1Password**, **Auth0**, and **Okta*** - **[Bitwarden](https://github.com/bitwarden/server)** - Open source password manager for individuals and teams. - **[KeePassXC](https://github.com/keepassxreboot/keepassxc)** - Fully offline, AES-256 password manager. - **[Keycloak](https://github.com/keycloak/keycloak)** - Open source identity and access management. - **[Authentik](https://github.com/goauthentik/authentik)** - The overall-best open-source identity provider. - [π **Security Tools on AltStack**](https://thealtstack.com/best/security) ### π οΈ DevOps & Automation *Alternatives to **Heroku**, **Zapier**, and **Vercel*** - **[Coolify](https://github.com/coollabsio/coolify)** - Self-hostable PaaS alternative to Heroku & Netlify. - **[n8n](https://github.com/n8n-io/n8n)** - Workflow automation tool with 400+ integrations. - **[Activepieces](https://github.com/activepieces/activepieces)** - Open source Zapier alternative. - [π **DevOps Tools on AltStack**](https://thealtstack.com/best/devops) ### πΎ Storage & Infrastructure *Alternatives to **AWS S3**, **Dropbox**, and **Salesforce*** - **[Garage](https://github.com/deuxfleurs-org/garage)** - An open-source distributed object storage service tailored for self-hosting. - **[Odoo](https://github.com/odoo/odoo)** - All-in-one ERP suite (Salesforce alternative). - **[Nextcloud](https://github.com/nextcloud/server)** - Content collaboration platform (Dropbox/Google Drive alternative). - [π **Infrastructure on AltStack**](https://thealtstack.com/best/cloud-infrastructure) --- ## β‘ Quick Start: Deploy Your First Alternative Most tools in this list can be deployed in minutes using Docker. Here is how to get started with the AltStack approach: 1. **Clone this repo**: `git clone https://github.com/altstackHQ/altstack-data.git` 2. **Explore `/deployments`**: Find the Docker Compose file for the tool you want. 3. **Go Sovereign**: Visit [docs.thealtstack.com](https://docs.thealtstack.com) for production-hardened guides (SSL, backups, and reverse proxies). > [!TIP] > This repository contains basic community configs. For commercial-grade Sovereign Infrastructure setup, always refer to our [Official Documentation](https://docs.thealtstack.com). ```bash cd deployments/plausible docker-compose up -d ``` --- ## πΊοΈ Directory Mapping (The AltStack Bridge) We use the data in this repository to power our [Main Website](https://thealtstack.com). Here is how the categories map: | UI Directory | Data Source (this repo) | Self-Hosted Guide | | :--- | :--- | :--- | | [Backend](https://thealtstack.com/best/backend-as-a-service) | `data/tools.json` | [Deploy Guides](https://docs.thealtstack.com/deploy/supabase) | | [Analytics](https://thealtstack.com/best/analytics) | `data/tools.json` | [Deploy Guides](https://docs.thealtstack.com/deploy/plausible) | | [Project Management](https://thealtstack.com/best/project-management) | `data/tools.json` | [Deploy Guides](https://docs.thealtstack.com/deploy/plane) | | [Communication](https://thealtstack.com/best/communication) | `data/tools.json` | [Deploy Guides](https://docs.thealtstack.com/deploy/mattermost) | | [Productivity](https://thealtstack.com/best/productivity) | `data/tools.json` | [Deploy Guides](https://docs.thealtstack.com/deploy/appflowy) | --- ## π€ Contributing We love contributions! If you know of a great open-source tool we missed: 1. Check the [Contribution Guidelines](CONTRIBUTING.md). 2. Open an Issue with the tool details. 3. Submit a PR to update `data/tools.json`. ---Built with β€οΈ by the AltStack Team.