A comprehensive, curated list of 150+ open-source and self-hosted tools that replace popular commercial SaaS products — covering web development, automation, DevOps, AI, business operations, and more.
Subscription costs add up fast. Vendor lock-in limits your flexibility. Data privacy is non-negotiable.
This guide helps developers, entrepreneurs, and businesses find free, self-hosted alternatives to every major SaaS category — with license info, tech stack, and direct links so you can evaluate and deploy quickly.
| # | Category | Replaces | Tools |
|---|---|---|---|
| 1 | CRM | Salesforce, HubSpot, Pipedrive | Twenty, SuiteCRM, EspoCRM, Odoo, Krayin, OroCRM, Vtiger, Django-CRM, YetiForce, Atomic CRM |
| 2 | E-Commerce | Shopify, BigCommerce, Wix | WooCommerce, Magento, Bagisto, PrestaShop, OpenCart, Spree, Saleor, Medusa, EverShop, Sharetribe |
| 3 | CMS | Contentful, Sanity, Webflow | WordPress, Strapi, Ghost, Directus, Payload CMS, Drupal, KeystoneJS, TYPO3, TinaCMS, Joomla |
| 4 | Web Analytics | Google Analytics, Mixpanel | Matomo, Plausible, Umami, PostHog, Open Web Analytics, Countly |
| 5 | Email Marketing | Mailchimp, ConvertKit | Listmonk, Mautic, Keila, phpList, Mailtrain |
| 6 | ERP | SAP, Oracle, NetSuite | ERPNext, Odoo, Dolibarr, Apache OFBiz, Axelor |
| 7 | Project Management | Jira, Asana, Trello, Linear | Plane, Taiga, OpenProject, WeKan, Kanboard, Focalboard, Planka, Leantime |
| 8 | Workflow Automation | Zapier, Make.com | n8n, Activepieces, Node-RED, Apache Airflow, Automatisch, Huginn, Kestra, Temporal |
| 9 | Team Chat | Slack, Microsoft Teams | Rocket.Chat, Mattermost, Zulip, Element/Matrix, Revolt |
| 10 | Video Conferencing | Zoom, Google Meet | Jitsi Meet, BigBlueButton, Nextcloud Talk, LiveKit |
| 11 | DevOps & Monitoring | GitHub, Datadog, Heroku | Jenkins, Gitea, GitLab CE, Prometheus, Grafana, Uptime Kuma, SigNoz, OneUptime, Coolify, Dokku, CapRover, Portainer |
| 12 | AI & LLM Tools | ChatGPT, Claude (cloud) | LibreChat, Open WebUI, Ollama, LangChain, H2oGPT, AnythingLLM, LocalAI, Flowise, Dify |
| 13 | Design & UI | Figma, Adobe Suite, Canva | Penpot, Inkscape, GIMP, Blender, Excalidraw, Lunacy |
| 14 | Invoicing & Billing | FreshBooks, QuickBooks | Invoice Ninja, InvoicePlane, SolidInvoice, Crater, Flexprice, Kill Bill |
| 15 | Help Desk | Zendesk, Freshdesk, Intercom | FreeScout, Zammad, osTicket, UVdesk, Faveo |
| 16 | Form Builders | Typeform, Google Forms | Formbricks, SurveyJS, LimeSurvey, OpnForm, Tripetto, Heyform |
| 17 | File Storage | Google Drive, Dropbox | Nextcloud, Seafile, MinIO, Pydio Cells, FileRun |
| 18 | Password Management | 1Password, LastPass | Vaultwarden, Bitwarden, KeePassXC, Passbolt |
| 19 | Identity & SSO | Okta, Auth0 | Authentik, Keycloak, Authelia, Zitadel |
| 20 | Hosting & PaaS | Heroku, Netlify, Vercel | Coolify, Dokku, CapRover, Kubero |
| 21 | Scheduling | Calendly, Acuity | Cal.com, Easy!Appointments, Alf.io |
| 22 | No-Code / Low-Code | Airtable, Retool, Bubble | Budibase, Appsmith, NocoDB, Baserow, ToolJet, Webstudio |
| 23 | Database & Backend | Firebase, Airtable | Supabase, PocketBase, Appwrite, Hasura, Directus, Rowy |
| 24 | Media & Streaming | Netflix, YouTube, Twitch | Jellyfin, Navidrome, PeerTube, Immich, Owncast |
Replaces: Salesforce, HubSpot, Pipedrive, Zoho CRM
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Twenty | AGPL-3.0 | Modern, Salesforce-like CRM with email sync, workflows, and model studio | Node.js, React, TypeScript, PostgreSQL | twenty.com |
| SuiteCRM | AGPL-3.0 | Enterprise-grade CRM (SugarCRM fork). Sales forecasting, customer portals, reporting | PHP, Symfony, MySQL | suitecrm.com |
| EspoCRM | AGPL-3.0 | Intuitive CRM with model studio, knowledge base, email sync, LDAP/OIDC | PHP 8, MySQL/PostgreSQL | espocrm.com |
| Odoo CRM | LGPL-3.0 | Part of Odoo suite. Lead scoring, email automation, pipeline visualization | Python, PostgreSQL | odoo.com |
| Krayin | MIT | Laravel-based CRM for SMBs. Bold UI, extensive customization | PHP, Laravel | krayincrm.com |
| OroCRM | OSL-3.0 | E-commerce-focused CRM on Symfony. Email sync, ZenDesk/Mailchimp integrations | PHP 8, Symfony | oroinc.com |
| Vtiger | AGPL/Prop. | All-in-one: sales, marketing, support, helpdesk, inventory | PHP | vtiger.com |
| Django-CRM | MIT | Feature-rich CRM built with Django. Full Python customization | Python, Django | django-crm.io |
| YetiForce | AGPL-3.0 | 80+ modules, customer portals, extensive customization | PHP | yetiforce.com |
| Atomic CRM | MIT | Lightweight, developer-first. Kanban pipeline, Supabase-powered | React, Supabase | marmelab.com/atomic-crm |
Replaces: Shopify, BigCommerce, Wix Stores
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| WooCommerce | GPL-2.0 | WordPress plugin powering millions of stores. Massive ecosystem | PHP, WordPress | woocommerce.com |
| Magento Open Source | OSL-3.0 | Powerful platform for large catalogs. Multi-storefront, robust API | PHP | business.adobe.com |
| Bagisto | MIT | Laravel-based, multi-vendor, REST APIs, clean admin panel | PHP, Laravel | bagisto.com |
| PrestaShop | OSL-3.0 | 600+ built-in features, strong EU community, multi-language/currency | PHP, Symfony | prestashop.com |
| OpenCart | GPL-3.0 | Lightweight with native multi-store support. Large extension marketplace | PHP | opencart.com |
| Spree Commerce | BSD | Rails-based headless framework. API-driven, modular | Ruby on Rails | spreecommerce.org |
| Saleor | BSD-3 | GraphQL-first headless e-commerce. Developer-friendly, performant | Python, Django, GraphQL | saleor.io |
| Medusa | MIT | Headless e-commerce engine. Composable architecture, multi-region | Node.js, TypeScript | medusajs.com |
| EverShop | GPL-3.0 | Standalone with great UI, strong integrations. NodeJS-powered | Node.js, React | evershop.io |
| Sharetribe | Mixed | Marketplace platform. Multi-vendor, built-in payments | Ruby, React | sharetribe.com |
Replaces: Contentful, Sanity, Webflow CMS, Wix
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| WordPress | GPL-2.0 | Powers 42.8% of all websites. Massive ecosystem | PHP, MySQL | wordpress.org |
| Strapi | MIT | Leading headless CMS. TypeScript, REST/GraphQL APIs, plugin system | Node.js, TypeScript | strapi.io |
| Ghost | MIT | Modern publishing. Newsletter, memberships, SEO-optimized | Node.js | ghost.org |
| Directus | GPL-3.0 | Instant REST/GraphQL API on any SQL database. Flexible data studio | Node.js, TypeScript | directus.io |
| Payload CMS | MIT | Code-first headless CMS. TypeScript, extensible | Node.js, TypeScript | payloadcms.com |
| Drupal | GPL-2.0 | Enterprise CMS with powerful taxonomy and multilingual support | PHP, Symfony | drupal.org |
| KeystoneJS | MIT | GraphQL API CMS built on Prisma. Great for React projects | Node.js, GraphQL | keystonejs.com |
| TYPO3 | GPL-2.0 | Enterprise-grade, popular in Europe. Multi-site, strong security | PHP | typo3.org |
| TinaCMS | Apache-2.0 | Git-backed visual editing. Markdown/MDX, Next.js-friendly | Node.js, React | tina.io |
| Joomla | GPL-2.0 | Mature CMS with powerful extensions and multi-language support | PHP | joomla.org |
Replaces: Google Analytics 4, Mixpanel, Amplitude
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Matomo | GPL-3.0 | Full-featured GA alternative. 100% accurate data, GDPR compliant | PHP, MySQL | matomo.org |
| Plausible | AGPL-3.0 | Lightweight, privacy-first. Script under 1KB | Elixir | plausible.io |
| Umami | MIT | Simple, fast, privacy-focused. Clean UI, easy self-hosting | Node.js, PostgreSQL | umami.is |
| PostHog | MIT | Product analytics, feature flags, session replay, A/B testing | Python, TypeScript | posthog.com |
| Open Web Analytics | GPL-2.0 | Click tracking, heatmaps, e-commerce tracking | PHP | openwebanalytics.com |
| Countly | AGPL-3.0 | Product analytics for mobile/web. Real-time dashboards, crash reports | Node.js, MongoDB | count.ly |
Replaces: Mailchimp, ConvertKit, ActiveCampaign, Brevo
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Listmonk | AGPL-3.0 | High-performance newsletter manager. Handles millions of subscribers | Go, PostgreSQL | listmonk.app |
| Mautic | GPL-3.0 | Full marketing automation: campaigns, landing pages, lead scoring | PHP, Symfony | mautic.org |
| Keila | AGPL-3.0 | Mailchimp-like. Visual editor, Markdown, sign-up form builder | Elixir | keila.io |
| phpList | AGPL-3.0 | Established newsletter platform. WordPress integration, bounce handling | PHP | phplist.com |
| Mailtrain | GPL-3.0 | Newsletter app. Automation, templates, RSS campaigns, API | Node.js | mailtrain.org |
Replaces: SAP, Oracle, NetSuite, Sage
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| ERPNext | GPL-3.0 | Complete ERP: accounting, HR, inventory, manufacturing, CRM | Python (Frappe) | erpnext.com |
| Odoo | LGPL-3.0 | Modular suite: CRM, sales, accounting, inventory, e-commerce, HR | Python, PostgreSQL | odoo.com |
| Dolibarr | GPL-3.0 | User-friendly ERP: accounting, CRM, HR, inventory. 50+ languages | PHP, MySQL | dolibarr.org |
| Apache OFBiz | Apache-2.0 | Mature ERP framework from Apache Foundation | Java | ofbiz.apache.org |
| Axelor | AGPL-3.0 | Modern ERP with low-code. CRM, HR, accounting, billing | Java | axelor.com |
Replaces: Jira, Asana, Trello, Monday.com, Linear
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Plane | AGPL-3.0 | Jira/Linear alternative. Issues, cycles, modules, pages | TypeScript, Next.js | plane.so |
| Taiga | MPL-2.0 | Agile PM: Scrum/Kanban boards, epics, sprints, wiki | Python, Angular | taiga.io |
| OpenProject | GPL-3.0 | Enterprise PM: Gantt charts, agile boards, time tracking, BIM | Ruby on Rails | openproject.org |
| WeKan | MIT | Trello-like Kanban board. Simple, self-hosted | Node.js, Meteor | wekan.github.io |
| Kanboard | MIT | Minimalist Kanban. Lightweight, swimlanes, Gantt plugin | PHP | kanboard.org |
| Focalboard | AGPL-3.0 | Notion/Trello alternative by Mattermost. Boards, lists, calendar | Go, TypeScript | focalboard.com |
| Planka | AGPL-3.0 | Real-time Kanban for workgroups. Docker deployment | Node.js, React | planka.app |
| Leantime | AGPL-3.0 | Strategic PM: OKRs, project planning, time tracking | PHP | leantime.io |
Replaces: Zapier, Make.com, Power Automate
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| n8n | Fair-code | 400+ integrations, visual builder, code when needed | TypeScript, Node.js | n8n.io |
| Activepieces | MIT | Zapier-like, AI-powered. Drag-and-drop, built-in debugger | TypeScript | activepieces.com |
| Node-RED | Apache-2.0 | Flow-based visual programming for IoT and automation | Node.js | nodered.org |
| Apache Airflow | Apache-2.0 | Enterprise workflow orchestration. DAGs, scheduling | Python | airflow.apache.org |
| Automatisch | AGPL-3.0 | Like-for-like Zapier replacement. Visual interface, self-hosted | TypeScript | automatisch.io |
| Huginn | MIT | Build agents that monitor and act on your behalf | Ruby | github.com/huginn/huginn |
| Kestra | Apache-2.0 | Event-driven orchestration. YAML workflows, 600+ plugins | Java | kestra.io |
| Temporal | MIT | Durable execution framework. Reliable workflows, retries | Go | temporal.io |
Replaces: Slack, Microsoft Teams, Discord
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Rocket.Chat | MIT | Full Slack alt: messaging, video, omnichannel (WhatsApp, email, SMS) | Node.js, Meteor | rocket.chat |
| Mattermost | MIT/AGPL | Secure team messaging with DevOps integrations | Go, React | mattermost.com |
| Zulip | Apache-2.0 | Topic-based threading. Great for async teams | Python, Django | zulip.com |
| Element / Matrix | Apache-2.0 | Decentralized, federated. E2E encryption, bridges to Slack/IRC | TypeScript, Python | element.io |
| Revolt | AGPL-3.0 | Discord alternative. Servers, voice channels, privacy-focused | Rust, TypeScript | revolt.chat |
Replaces: Zoom, Google Meet, Microsoft Teams
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Jitsi Meet | Apache-2.0 | Leading open-source video conferencing. No account needed | Java, JS | jitsi.org |
| BigBlueButton | LGPL-3.0 | Built for online learning. Whiteboard, polls, breakout rooms | Java, JS | bigbluebutton.org |
| Nextcloud Talk | AGPL-3.0 | Part of Nextcloud. Video calls, screen sharing, chat | PHP, JS | nextcloud.com |
| LiveKit | Apache-2.0 | Real-time video/audio infrastructure. WebRTC, scalable | Go | livekit.io |
Replaces: GitHub, Datadog, New Relic, Heroku, PagerDuty, Vercel
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Jenkins | MIT | Classic CI/CD automation. 1800+ plugins | Java | jenkins.io |
| Gitea | MIT | Lightweight Git hosting with CI/CD (Gitea Actions) | Go | gitea.io |
| GitLab CE | MIT | Complete DevOps platform: Git, CI/CD, registry, issues | Ruby, Go | gitlab.com |
| Prometheus | Apache-2.0 | Systems monitoring & alerting. PromQL, cloud-native | Go | prometheus.io |
| Grafana | AGPL-3.0 | Data visualization & dashboards. 100+ data sources | Go, TypeScript | grafana.com |
| Uptime Kuma | MIT | Beautiful uptime monitor. HTTP, TCP, DNS. 50+ notifications | Node.js | uptime.kuma.pet |
| SigNoz | MIT | Full-stack APM (Datadog alt). Metrics, traces, logs | Go, TypeScript | signoz.io |
| OneUptime | MIT | All-in-one: monitoring, status pages, incidents, on-call, logs | TypeScript | oneuptime.com |
| Coolify | Apache-2.0 | Self-hostable Heroku/Netlify/Vercel. One-click deploys | PHP, TypeScript | coolify.io |
| Dokku | MIT | Smallest PaaS. Docker-powered, Heroku-like | Shell, Go | dokku.com |
| CapRover | Apache-2.0 | Easy app deployment. One-click apps, Let's Encrypt | Node.js | caprover.com |
| Portainer | Zlib | Docker/Kubernetes management UI | Go, TypeScript | portainer.io |
Replaces: ChatGPT, Claude, Gemini (cloud APIs)
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| LibreChat | MIT | ChatGPT-like interface. Agents, code interpreter, multi-model | TypeScript, Node.js | librechat.ai |
| Open WebUI | MIT | Self-hosted AI chat. Works with Ollama, OpenAI API. RAG, plugins | Python, Svelte | openwebui.com |
| Ollama | MIT | Run LLMs locally (Llama, Mistral, Gemma). Simple CLI | Go | ollama.com |
| LangChain | MIT | Framework for LLM-powered apps. Chains, agents, RAG | Python, TypeScript | langchain.com |
| H2oGPT | Apache-2.0 | Private GPT with local LLMs. Document chat, no data leaves server | Python | h2o.ai |
| AnythingLLM | MIT | Desktop AI for local files/documents. Easy setup | TypeScript | anythingllm.com |
| LocalAI | MIT | Drop-in OpenAI API replacement. Run models locally | Go | localai.io |
| Flowise | Apache-2.0 | Drag-and-drop LLM flow builder. Chatbots, RAG apps | TypeScript | flowiseai.com |
| Dify | Apache-2.0 | LLM app development platform. Visual workflow, RAG, agents | Python, TypeScript | dify.ai |
Replaces: Figma, Adobe Photoshop/Illustrator, Canva
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Penpot | MPL-2.0 | Figma alternative. Browser-based, real-time collaboration, SVG-native | Clojure, JS | penpot.app |
| Inkscape | GPL-2.0 | Professional vector graphics editor (Illustrator alt) | C++ | inkscape.org |
| GIMP | GPL-3.0 | Photoshop alternative. Advanced editing, scripting, plugins | C | gimp.org |
| Blender | GPL-2.0 | 3D creation: modeling, animation, rendering, video editing | C, C++, Python | blender.org |
| Excalidraw | MIT | Virtual whiteboard. Collaborative, hand-drawn feel | TypeScript, React | excalidraw.com |
| Lunacy | Freeware | Figma-like UI by Icons8. Built-in assets library | C# | icons8.com/lunacy |
Replaces: FreshBooks, QuickBooks, Stripe Billing, Chargebee
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Invoice Ninja | AAL | Professional invoicing. 100+ features, recurring, auto-billing, 45+ gateways | PHP, Laravel | invoiceninja.com |
| InvoicePlane | MIT | Simple, free invoicing for freelancers | PHP | invoiceplane.com |
| SolidInvoice | MIT | Modern invoicing. Quote-to-invoice, recurring, multi-currency, API | PHP, Symfony | solidinvoice.co |
| Crater | AGPL-3.0 | Clean invoicing for freelancers/SMBs. Expenses, reports | PHP, Laravel, Vue | craterapp.com |
| Flexprice | Apache-2.0 | Subscription billing: real-time metering, usage-based, hybrid pricing | Go | flexprice.io |
| Kill Bill | Apache-2.0 | Enterprise subscription billing. Invoicing, tax, dunning | Java | killbill.io |
Replaces: Zendesk, Freshdesk, Intercom, Help Scout
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| FreeScout | AGPL-3.0 | Lightweight help desk & shared inbox. WhatsApp/Telegram, knowledge base | PHP, Laravel | freescout.net |
| Zammad | AGPL-3.0 | Modern ticketing. Multi-channel (email, phone, chat, social) | Ruby | zammad.com |
| osTicket | GPL-2.0 | Widely-used ticket system. Email/web form intake, SLA | PHP | osticket.com |
| UVdesk | MIT | Enterprise helpdesk. E-commerce integrations (Shopify, WooCommerce) | PHP, Symfony | uvdesk.com |
| Faveo | Mixed | Advanced helpdesk with SLA management and ITIL processes | PHP, Laravel | faveo.com |
Replaces: Typeform, Google Forms, SurveyMonkey, Jotform
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Formbricks | AGPL-3.0 | In-app, email, link, pop-up surveys. Segment targeting | TypeScript, Next.js | formbricks.com |
| SurveyJS | MIT | JS form builder libraries. WYSIWYG editor, JSON schema | JavaScript | surveyjs.io |
| LimeSurvey | GPL-2.0 | Powerful survey platform. Branching logic, themes | PHP | limesurvey.org |
| OpnForm | AGPL-3.0 | Flexible forms. Conditional logic, multiple question types | PHP, Vue.js | opnform.com |
| Tripetto | MIT | Visual flowchart-style form builder. Branching, chat layouts | TypeScript | tripetto.com |
| Heyform | AGPL-3.0 | Typeform alternative. Conversational forms, no-code | TypeScript | heyform.net |
Replaces: Google Drive, Dropbox, OneDrive, Box
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Nextcloud | AGPL-3.0 | Complete suite: files, calendar, contacts, office, video calls | PHP | nextcloud.com |
| Seafile | GPL/AGPL | Reliable file sync & share. Fast, file locking, WebDAV | C, Python | seafile.com |
| MinIO | AGPL-3.0 | High-performance S3-compatible object storage | Go | min.io |
| Pydio Cells | AGPL-3.0 | Enterprise file sharing. Strong security, collaboration | Go | pydio.com |
| FileRun | Proprietary | Self-hosted Google Drive alt. Beautiful UI, WebDAV. Free for 5 users | PHP | filerun.com |
Replaces: 1Password, LastPass, Dashlane
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Vaultwarden | AGPL-3.0 | Lightweight Bitwarden-compatible server. All official apps work | Rust | github.com/dani-garcia/vaultwarden |
| Bitwarden | AGPL-3.0 | Popular password manager. Self-hostable, cross-platform, 2FA | C# | bitwarden.com |
| KeePassXC | GPL-3.0 | Offline password manager. Local database, browser integration | C++ | keepassxc.org |
| Passbolt | AGPL-3.0 | Team password manager. GPG-based, collaboration-focused | PHP, CakePHP | passbolt.com |
Replaces: Okta, Auth0, Azure AD
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Authentik | MIT | Identity provider: SSO, MFA, SCIM, LDAP. Used by Cloudflare | Python, Go | goauthentik.io |
| Keycloak | Apache-2.0 | IAM: SSO, social login, LDAP/AD, OIDC, SAML | Java | keycloak.org |
| Authelia | Apache-2.0 | Auth & authorization server. 2FA, SSO portal, LDAP | Go | authelia.com |
| Zitadel | Apache-2.0 | Cloud-native identity. Multi-tenancy, passwordless, OIDC/SAML | Go | zitadel.com |
Replaces: Heroku, Netlify, Vercel, Railway
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Coolify | Apache-2.0 | Self-hostable Heroku/Netlify/Vercel. One-click deploys, SSL | PHP, TypeScript | coolify.io |
| Dokku | MIT | Smallest PaaS. Docker-powered, git push deployment | Shell, Go | dokku.com |
| CapRover | Apache-2.0 | PaaS with one-click apps. Let's Encrypt, cluster support | Node.js | caprover.com |
| Kubero | GPL-3.0 | Heroku-like PaaS on Kubernetes. Review apps, addons | TypeScript | kubero.dev |
Replaces: Calendly, Acuity Scheduling, SimplyBook.me
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Cal.com | AGPL-3.0 | Calendly alternative. Custom workflows, multi-calendar, embeddable | TypeScript, Next.js | cal.com |
| Easy!Appointments | GPL-3.0 | Self-hosted scheduler. Calendar sync, customer management | PHP | easyappointments.org |
| Alf.io | GPL-3.0 | Event management & ticket reservation. Multi-event, payments | Java | alf.io |
Replaces: Airtable, Retool, Bubble, Webflow
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Budibase | GPL-3.0 | Low-code internal tools. Connect to databases, auto-generate UIs | TypeScript, Svelte | budibase.com |
| Appsmith | Apache-2.0 | Internal tools with drag-and-drop. Connect to APIs/databases | TypeScript, Java | appsmith.com |
| NocoDB | AGPL-3.0 | Airtable alternative. Turn any database into a smart spreadsheet | TypeScript | nocodb.com |
| Baserow | MIT | Open-source Airtable. No-code database, API, plugins | Python, Django, Vue | baserow.io |
| ToolJet | AGPL-3.0 | Low-code business apps. 50+ data source connectors | TypeScript, Node.js | tooljet.com |
| Webstudio | AGPL-3.0 | Webflow alternative. Visual builder, clean code export | TypeScript | webstudio.is |
Replaces: Firebase, Supabase (cloud), Airtable backend
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Supabase | Apache-2.0 | Firebase alternative. PostgreSQL, auth, storage, realtime | TypeScript, Elixir | supabase.com |
| PocketBase | MIT | Backend in a single file. SQLite, auth, realtime, admin UI | Go | pocketbase.io |
| Appwrite | BSD-3 | Backend for web/mobile/Flutter. Auth, DB, storage, functions | TypeScript, PHP | appwrite.io |
| Hasura | Apache-2.0 | Instant GraphQL/REST APIs on your databases | Haskell | hasura.io |
| Directus | GPL-3.0 | REST/GraphQL APIs + data studio on any SQL database | TypeScript | directus.io |
| Rowy | AGPL-3.0 | Airtable-like UI for Firestore. Cloud functions, automations | TypeScript | rowy.io |
Replaces: Netflix, Spotify, YouTube, Google Photos, Twitch
| Tool | License | Description | Tech Stack | Website |
|---|---|---|---|---|
| Jellyfin | GPL-2.0 | Media streaming server. Movies, TV, music, books | C# | jellyfin.org |
| Navidrome | GPL-3.0 | Music server. Subsonic/Airsonic compatible, modern UI | Go | navidrome.org |
| PeerTube | AGPL-3.0 | Decentralized YouTube alt. Federation, live streaming | TypeScript, Node.js | joinpeertube.org |
| Immich | AGPL-3.0 | Google Photos alt. Auto-backup, ML search, face recognition | TypeScript, Dart | immich.app |
| Owncast | MIT | Self-hosted live streaming (Twitch alt). Chat, embeddable | Go | owncast.online |
- Awesome Self-Hosted — Massive curated list of self-hosted services
- Open Source Alternatives — GitHub list maintained by BTW
- OpenAlternative.co — Discover open-source alternatives to popular software
- Awesome Open Source — Search engine for open-source projects
A formatted 27-page PDF version of this guide is available in this repository:
📥 Download Open_Source_Alternatives_Guide.pdf
Contributions are welcome! To add a tool:
- Fork this repository
- Add the tool to the appropriate category table
- Include: Name, License, Description, Tech Stack, and Website
- Submit a Pull Request
- Tool must be open-source or offer a free self-hosted edition
- Include the correct license (verify on GitHub/official site)
- Keep descriptions concise (1-2 sentences)
- Tools should be actively maintained (recent commits within 12 months)
- Licenses can change — always verify on the project's GitHub/website before adoption
- Self-hosting requires server infrastructure and maintenance
- Some tools have paid enterprise/cloud editions alongside their open-source versions
- This list is not exhaustive — new tools emerge frequently
This project is licensed under the MIT License.
⭐ Star this repo if you found it useful!