The $0 Infrastructure Stack: Running Production Apps for Free in 2026 | Techsadhika AI Solutions
The $0 Infrastructure Stack: Running Production Apps for Free in 2026
No credit card, no surprise bill, no compromise on reliability. Here's the exact free-tier stack Techsadhika AI Solutions uses to ship real client products before a single rupee of cloud spend is needed.
Every founder hits the same wall in month one: AWS quotes a $400/month "starter" estimate before a single user has signed up. Here's the part nobody tells you — in 2026, you genuinely don't need to pay that. Across a dozen live client builds this year, Techsadhika AI Solutions has run full production SaaS products — auth, database, AI inference, background jobs, monitoring — on infrastructure that costs exactly $0 until real scale kicks in.
This isn't a "free trial that expires in 14 days" list. Every service below has a genuinely permanent free tier as of June 2026. We'll walk through the stack layer by layer, show you the architecture, flag the real limits (because there always are some), and give you the exact point at which you should start paying.
01Why free infrastructure works in 2026
Three things changed that make this possible now in a way it wasn't five years ago:
- Serverless became the default — you're billed for execution, not idle uptime, so an app with light traffic costs functionally nothing to host.
- Postgres-as-a-service got generous — Supabase, Neon, and Turso compete hard on free-tier storage and compute because the upgrade path is the business model.
- Edge networks absorbed the CDN layer — Cloudflare's free tier alone replaces what used to be a paid load balancer + CDN + WAF stack.
The result: an MVP, an internal tool, or even a moderate-traffic client pilot can run indefinitely at zero infrastructure cost — which is exactly the validation window every founder actually needs before scaling spend.
02The full $0 architecture
Here's how the pieces connect. Every box in this diagram has a free tier that's permanent, not promotional.
03Layer by layer: what to actually use
Frontend hosting — Vercel vs Netlify
Both give you global CDN deployment, automatic HTTPS, preview deployments per pull request, and generous bandwidth on the free tier. Vercel edges ahead for Next.js apps specifically because it's built by the same team; Netlify is the stronger pick for plain static sites, Hugo, or Astro builds with its more flexible build-plugin ecosystem.
Database — Supabase vs Neon
Supabase bundles Postgres with auth, storage, and realtime subscriptions in one free project — ideal if you want fewer moving parts. Neon is pure serverless Postgres with instant database branching, which is genuinely useful for spinning up a fresh preview database per pull request without any extra config.
Compute — where your backend logic actually runs
GCP's Cloud Run free tier gives you 2 million requests and 360,000 GB-seconds of compute monthly — enough for most early-stage APIs. Pair it with Cloudflare Workers for anything latency-sensitive at the edge, like auth checks or geolocation routing.
AI inference without a bill
Gemini's free tier and Groq's free tier both offer meaningful daily request quotas suitable for AI features in an MVP — chatbots, summarization, classification. This is exactly the layer Techsadhika uses when prototyping client-facing AI agents before locking in a production model contract.
04Quick start: deploy in 15 minutes
Here's the minimal path to get a Next.js + Supabase app live on this stack:
# 1. Scaffold and connect Supabase npx create-next-app@latest my-app npx supabase init # 2. Push schema to your free Supabase project npx supabase db push # 3. Deploy to Vercel — connects via GitHub, zero config vercel --prod # 4. Point Cloudflare DNS at your Vercel deployment CNAME www → cname.vercel-dns.com
Want this stack deployed for you?
We architect and ship zero-to-low-cost infrastructure for early-stage SaaS and AI products — the same stack powering our own client builds.
05Where the free tier actually breaks
Honesty matters more than hype here. Free infrastructure has real ceilings, and hitting them at the wrong moment is worse than planning for them.
| Layer | Free limit | What breaks first | Upgrade trigger |
|---|---|---|---|
| Vercel | 100GB bandwidth/mo | Image-heavy pages at scale | ~50K monthly visitors |
| Supabase | 500MB DB storage | Tables with media/logs | ~10K active records |
| Cloud Run | 2M requests/mo | Cold start latency under load | Sustained >50 req/sec |
| Gemini free tier | Daily request quota | 429 rate-limit errors | Production AI traffic |
| Cloudflare R2 | 10GB storage | Large file/media uploads | User-generated content at scale |
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