Open source alternatives to paid SaaS apps: Notion, Slack, Auth0, Vercel and more. Curated list with licenses and GitHub stars.
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Updated
Oct 14, 2026 - JavaScript
Open source alternatives to paid SaaS apps: Notion, Slack, Auth0, Vercel and more. Curated list with licenses and GitHub stars.
AI-native open-source alternative to Vercel + Sentry + PostHog + Pingdom + Resend + E2B. 440+ CLI operations with drop-in skills for Claude Code, Codex & OpenCode — deployments, analytics, session replay, error tracking, OpenTelemetry, email, sandboxes & AI gateway in one self-hosted Rust binary.
Devopness: AI DevOps on your cloud. Deploy apps, infra and CI/CD. Any cloud and any stack, one MCP. Deterministic API, opinionated and fully configurable. No cloud credentials in AI chats. Free plan.
An open-source, self-hostable application platform for building and operating applications on Kubernetes
Deploy any apps from Cursor / Claude Code with scoped tokens - self-hosted PaaS.
Self-hosted Platform-as-a-Service (PaaS) with multi-tenancy, GitOps, built-in registry, monitoring, backups, and multi-node deployments
Dokploy Community Edition: a maintained fork of Dokploy (self-hosted PaaS, Vercel/Netlify/Heroku alternative) with upstream fixes shipped early, a built-in remote MCP server with OAuth, Backup Center, wildcard domains and multi-arch images.
An open-source & self-hostable alternative to Coolify / Heroku / Vercel — deploy containers, Docker Compose stacks, databases and 30+ one-click services on your own servers. Single Rust binary. 20 MB RAM.
Open source, self-hosted PaaS and lightweight Coolify alternative: push to git, get TLS, logs, traces, metrics, previews and one-click rollback on your own Linux servers. Single Go binary, Docker, built-in observability, scale to zero. No Kubernetes.
All your apps on one server you own: deploys, a database, auth, KV, files, email, jobs, analytics and backups. CLI, dashboard and MCP for coding agents.
An open-source Vercel alternative for static websites and SPA frameworks (React, Vite, Vue, Angular, Svelte). Drag & drop local project folders or git repos to trigger auto-detection, local builds, real-time log streaming, and Supabase deployment.
An open-source, self-hostable PaaS alternative to Vercel, Heroku, Netlify and coolify deploy static sites, databases, full-stack applications, and 400+ one-click apps and services on your own servers with ease.
Open-source, self-hosted PaaS and cloud platform — a Vercel, Supabase, Railway & Netlify alternative for your own infrastructure.
Self-hosted PaaS with an MCP control plane: your AI agent deploys, inspects and rolls back. SSO and audit included.
Deploy apps to servers you control an open-source, Docker-first BYOS deployment platform with previews, SSL, logs, backups, rollbacks, and production safety for human- and AI-built apps.
Turn a computer you already own into your personal cloud. Deploy your website from GitHub — database, backups, private URL over Tailscale — for $0/month. When a deploy breaks, it fixes itself. Self-hosted Vercel/Coolify alternative on rootless Podman.
The self-hosted, push-to-deploy app platform — your own Vercel, on your own box.
Freim Deploy (formerly FrostDeploy) — self-hosted deploy platform for your own VPS. A Vercel, Netlify and Render alternative: Next.js, Astro, Nuxt & static sites with automatic HTTPS, custom domains and one-click rollback. No Docker.
Open-source full-stack preview environments with databases for every PR. The self-hosted alternative to Vercel/Qovery.
Open-source PaaS for the post-cloud era — Vercel-style preview deploys, GitOps pipelines, Cloudflare Tunnel ingress, Janua SSO, and ArgoCD reconciliation, all running on infrastructure you can own (bare-metal). Self-hosted, sovereign, production-grade.
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