LaunchFast offers comprehensive SaaS starter kits for Astro, Next.js, and SvelteKit, designed to expedite project launches by integrating essential features such as SEO, analytics, authentication, payments, and email functionalities. These kits support various databases, including MongoDB, Firestore, PostgreSQL, Redis, and SQLite, providing flexibility in data management. They also facilitate seamless file and document storage through services like AWS S3, Cloudflare R2, Firebase Storage, and Supabase Storage. User authentication is streamlined with support for email/password logins, OAuth 2.0, password resets, and email verification, along with social logins from platforms like Google, Facebook, and GitHub. For billing and payments, the kits integrate with Stripe and LemonSqueezy, enabling global transactions with tax compliance. Content management is enhanced through dynamic blog pages and responsive documentation, utilizing Markdown and MDX.