The Complete Guide to Free Cloud Infrastructure — Running a SaaS at $0/Month

For solo founders, server costs are one of the biggest initial expenses. But in 2026, choosing the right tool combination lets you run a production-level service at $0/month. We're revealing the actual $0 infrastructure stack GRAXEL runs in production.

Frontend: Cloudflare Pages (Free)

Deploy Next.js, React, and other static/SSR apps for free. Push to GitHub and it automatically builds and deploys. Unlimited bandwidth, global CDN, custom domains, and SSL certificates are all free. GRAXEL Portal (graxel.ai) runs on Cloudflare Pages.

Database: Supabase Free Tier (Free)

A fully managed PostgreSQL database offering 500MB storage, 50,000 monthly active users, authentication (OAuth), real-time subscriptions, and 1GB file storage — all free. The pgvector extension enables AI embedding search at no cost.

Batch Server: Oracle Cloud Always Free (Free)

The most powerful free cloud option. Provides ARM-based 4 OCPU + 24GB RAM instances permanently free. GRAXEL runs AI batch jobs, crawlers, and the Ollama 14B model on this server.

Other Free Services

• Resend — 3,000 emails/month free (signup confirmation, notifications)
• Upstash Redis — 10,000 requests/day free (caching, rate limiting)
• Sentry — 5,000 events/month free (error monitoring)
• Cloudflare DNS — Unlimited DNS queries free

Important Caveats

• Supabase free plan pauses inactive projects after 7 days. Set up a regular ping.
• Oracle Free Tier is offered once per account — set it up carefully.
• Always prepare for a possible paid upgrade if traffic spikes unexpectedly.

With this combination, GRAXEL launched its service at $0 in infrastructure costs. Validate your MVP quickly on free tiers, then migrate to paid plans when your user base grows — the smart strategy for solo founders.

Further reading and verification

To keep this article useful beyond a quick overview, GRAXEL links each recommendation to related portal context and official references. Continue with these internal notes when you want to see how the same idea is applied in production:

• zero-cost infrastructure details
• Oracle Cloud API operations
• Cloudflare Tunnel operations

For external validation, compare the recommendations with these official or primary documentation sources:

• Cloudflare Pages documentation
• Supabase documentation

Hidden costs I check before choosing a free service

Free infrastructure is useful when the product is still proving demand, but I never evaluate it only by the monthly bill. I check cold starts, bandwidth ceilings, build minutes, database storage, backup options, log retention, and what happens when a quota is exceeded. A platform that is free but has no practical recovery path can be more expensive than a small paid server.

My decision table has three columns: what runs for free today, what breaks first as usage grows, and what the first paid upgrade would be. For a static portal, the first pressure point might be build time or image optimization. For an API, it might be database connections, background jobs, or egress. For an AI workflow, it is often queue depth and observability. I also write down an exit plan before adopting a provider-specific feature. That does not mean avoiding managed services; it means knowing which parts of the system are portable. The healthiest free-tier setup is one where a successful launch naturally graduates to a paid plan instead of requiring an emergency rewrite.