Build your next website on a 100% free tech stack.
FreeStack is an interactive reference of free & free-tier technologies across the whole stack — frontend, backend, databases, hosting, auth, email, notifications, AI and more. Compare the options, assemble a combination, and see exactly where (and when) you’d ever pay a cent.
Pick the approach that fits how you decide.
Whether you like browsing tables, building combinations, or copying a proven recipe — start here.
Explore the catalog
Searchable, filterable comparison tables of every technology, grouped by category, with free-tier limits, licenses and gotchas side by side.
Browse the catalog → 🧰Build a stack
Pick one option per layer and watch a full stack assemble — with combined free-tier ceilings, total monthly cost, and compatibility warnings in real time.
Open the builder → 🍱Copy a preset
Five battle-tested, fully-free stacks — from the all-Cloudflare edge stack to a self-hosted sovereign stack — each with an architecture diagram and free-tier ceiling.
See preset stacks →Every layer of the stack — free-first.
Categories span the whole build, from the UI framework all the way down to background jobs and observability.
What counts as free here.
🟢 Free / open source
MIT/Apache/BSD libraries and frameworks you run anywhere with no usage cost ever — React, Hono, Drizzle, Tailwind. The only cost is the server you run them on.
🔵 Generous free tier
Hosted services with a permanent, production-usable free allowance — Cloudflare Workers, Supabase, Neon, Resend. You pay only after you cross a real limit.
🟠 Freemium (watch the cliff)
Usable free, but you hit the paywall fast or for commercial use — Vercel Hobby, Clerk, Algolia. Listed with the exact gotcha so there are no surprises.
💳 No fixed cost, pay-per-use
No monthly fee but a per-unit cut — Stripe (per charge), Amazon SES (per email), AI APIs (per token). Free to integrate; cost scales only with success.