Lastsaas

LastSaaS is an open-source, production-ready SaaS boilerplate designed for founders and teams who want to rapidly develop and launch multi-tenant SaaS products without building the common foundations from scratch. Offering robust features like authentication, RBAC, billing via Stripe, white-label branding, API keys, outgoing webhooks, admin and analytics dashboards, and real-time system monitoring, LastSaaS is engineered for AI- and agent-assisted development workflows. It's fork-ready, comes with a Go backend and React/TypeScript frontend, and is optimized for extensibility, agentic engineering, and modern SaaS best practices. Perfect for technical founders, AI developers, and startups needing a complete SaaS infra stack.