Firebase vs Supabase
Firebase vs Supabase compared for European indie developers and small startups. Pricing, EU jurisdiction, GDPR posture, and why Runsite (an EU-registered PaaS in Frankfurt) is worth a look.
Firebase vs Supabase: quick answer
Firebase and Supabase both offer Git-push deploy workflows, but they differ where it counts. Firebase starts around pay-as-you-gometered. Firebase and Supabase are both US-headquartered, so neither escapes US jurisdiction or the CLOUD Act, and neither runs EU-native infrastructure or offers hard spending caps. For European teams that need GDPR-compliant hosting in Frankfurt with predictable EUR billing and a permanent free tier, Runsite is the EU-native alternative to both.
// firebase problems → runsite solutions
Common Firebase frustrations. Sound familiar?
Every Firebase frustration, solved.
Firebase problem
"Firebase locks me into Google"
Firestore, Cloud Functions, Firebase Auth: proprietary services that don't work outside Google Cloud.
Runsite solution
Open standards everywhere
PostgreSQL, Docker, S3. Standard tools that work on any platform.
Firebase problem
"GDPR compliance is complicated"
Firebase requires a Google Cloud DPA, data residency configuration, and careful SDK setup for EU compliance.
Runsite solution
GDPR by default
EU entity. EU servers. No configuration needed. Compliant from day one.
Firebase problem
"Costs spike with traffic"
Firebase charges per document read/write. A viral moment can mean a massive surprise bill.
Runsite solution
Fixed pricing + spending caps
Predictable monthly bills with hard limits. Traffic spikes don't break the bank.
// comparison
Runsite vs Firebase
Side-by-side. No marketing fluff, just facts.
| Feature | Runsite | Firebase |
|---|---|---|
| Vendor Lock-in | ✓ Open standards, Docker | ✗ Proprietary SDKs |
| EU Data Centers | ✓ Frankfurt (eu-central) | ✓ europe-west regions |
| GDPR Compliance | ✓ EU entity, full compliance | Complex DPA required |
| Backend Hosting | ✓ Full containers | Cloud Functions only |
| Database | ✓ Standard PostgreSQL | Firestore (proprietary) |
| Pricing Transparency | ✓ Fixed plans | Pay-per-read/write |
// the other side
What about Supabase?
Supabase gives you a great PostgreSQL BaaS. But free projects pause after 7 days, and it's a US company. Runsite gives you always-on EU hosting.
// supabase problems → runsite solutions
Common Supabase frustrations. Sound familiar?
Every Supabase frustration, solved.
Supabase problem
"My free project got paused"
Supabase pauses free-tier projects after 7 days of inactivity. Your demo, side project, or staging environment goes offline.
Runsite solution
Always-on free tier
Runsite's free tier doesn't pause. Your app runs 24/7, even if nobody visits for a month.
Supabase problem
"$25/project for Pro is expensive"
Running 3 projects on Supabase Pro costs $75/mo. The jump from free (with pausing) to paid is steep.
Runsite solution
Managed PostgreSQL from €5/mo
Standard PostgreSQL with auto-backups for €5/mo. Add a web service for €5/mo. Total: €10/mo.
Supabase problem
"Edge Functions can't be pinned to EU"
Supabase Edge Functions run on Deno Deploy. You can't control which region processes your requests.
Runsite solution
EU-only compute
Your containers run in our Frankfurt (eu-central) region. Every request is processed in Europe under EU law.
// comparison
Runsite vs Supabase
Side-by-side. No marketing fluff, just facts.
| Feature | Runsite | Supabase |
|---|---|---|
| Free Tier Availability | ✓ Always on, never pauses | ✗ Pauses after 7 days inactivity |
| Deploy Custom Apps | ✓ Any Docker container | ✗ BaaS only (Edge Functions) |
| GDPR Compliance | ✓ EU entity | ✗ US company (San Francisco) |
| PostgreSQL | ✓ From €5/mo | ✓ From $25/mo (Pro) |
| Edge Functions Region | ✓ EU pinned | ✗ Deno Deploy, no EU pinning |
| Auth + Realtime | Bring your own | ✓ Built-in (GoTrue, Realtime) |
| Auto-Generated APIs | Bring your own | ✓ REST + GraphQL from schema |
| Open Source | Closed source | ✓ Open source (Apache 2.0) |
// pricing, side by side
Firebase vs Supabase: what each actually costs
Spark plan is free with fixed quotas. Exceeding any quota forces an upgrade to the metered, uncapped Blaze plan.
Firebase's free Spark tier is great for prototypes, but the jump to uncapped Blaze billing and per-operation Firestore pricing make it one of the riskiest platforms for unexpected bills, there is no hard spending cap, only after-the-fact alerts.
Pricing verified June 2026. Check the official pricing page of each provider for current rates.
// in-depth comparison
How Firebase and Supabase each compare to Runsite
Firebase vs Runsite
Ship a prototype over a weekend, and Firebase feels like magic. Google's all-in-one backend was built for exactly that speed.
Firestore, Firebase Auth, Cloud Messaging, and Hosting form a tightly integrated ecosystem, and the free Spark plan covers small projects comfortably. The real-time capabilities are genuinely useful for mobile and web apps. The catch shows up later. Everything that made the fast start possible becomes vendor lock-in: Firestore's proprietary query model, Firebase-specific auth SDKs, and Cloud Functions tied to Google Cloud mean your code cannot run elsewhere without substantial rewrites. GDPR compliance adds its own tax, requiring a Google Cloud DPA, careful region configuration, and ongoing vigilance about which services process data where.
Runsite uses standard PostgreSQL, Docker containers, and S3-compatible storage, all portable to any other provider. Teams that have outgrown Firebase's proprietary model, or that need straightforward EU compliance without navigating Google's data processing agreements, get a cleaner foundation. You bring your own auth and realtime layer, but you own every piece of your stack.
Supabase vs Runsite
The dealbreaker for a lot of European developers is one line in the free-tier terms: Supabase pauses free-tier projects after 7 days of inactivity, so your staging environment or demo app goes offline without warning. That weighs more than any feature list.
For context, the rest is strong. Supabase has built an impressive open-source platform around PostgreSQL, with auto-generated REST and GraphQL APIs, built-in auth via GoTrue, real-time subscriptions, and edge functions, plus a community Firebase cannot match. But there is a second catch: it is a San Francisco-based US company, so CLOUD Act jurisdiction applies to your data regardless of region selection. Paid plans start at $25/project/mo, making multi-project setups expensive.
Runsite's free tier never pauses, managed PostgreSQL starts at €5/mo, and the platform operates as an EU entity with all data in European data centers. Developers who want PostgreSQL hosting with EU data sovereignty, always-on availability even on the free tier, and lower per-project costs will find Runsite addresses the limitations European Supabase users hit most.
// why consider runsite
Beyond Firebase and Supabase
EU PaaS for indie developers and small European startups. One region: Frankfurt.
EU-First Infrastructure
While Firebase and Supabase default to US markets, Runsite is built exclusively for European developers. Frankfurt (eu-central) region, EU entity, EU jurisdiction, with no transatlantic transfers.
Real GDPR Compliance
EU-registered entity. Your data is governed by European law. No US jurisdiction, no CLOUD Act.
Predictable Pricing
No per-invocation charges, no surprise bills. Fixed plans with hard spending caps and Telegram alerts.
Common Questions
FAQ
Which is better for EU hosting, Firebase or Supabase?
Neither Firebase nor Supabase is EU-native. Both are US-based (Firebase: a US Google service; Supabase: US-headquartered (open source)) and route most traffic through US regions, with EU availability that is usually limited or gated behind higher tiers. Even when you can select a European region, the parent company stays subject to the US CLOUD Act, which can compel disclosure of EU customer data. For genuine EU data residency, an EU-registered platform is the safer choice: Runsite runs exclusively in Frankfurt (eu-central) under EU jurisdiction, with no transatlantic transfers and no CLOUD Act exposure — the kind of guarantee neither US provider can make.
Which has the better free tier, Firebase or Supabase?
Free tiers on both Firebase and Supabase change frequently and tend to share the same catch: compute that sleeps after inactivity, bandwidth or build-minute caps, or trial credits that expire after a fixed window. They are fine for quick experiments but rarely sustainable for an always-on hobby project. If a permanent free tier matters, read the current terms carefully. Limits are often buried in the pricing footnotes. Runsite takes the opposite approach: a free tier with no credit card and no expiry, designed to keep small projects online indefinitely rather than nudging you onto a paid plan.
Is Firebase or Supabase GDPR-compliant?
Both Firebase and Supabase can be configured to support GDPR-compliant workloads through a signed Data Processing Agreement (DPA) and EU region selection where available. However, as US-incorporated entities they remain subject to the US CLOUD Act regardless of where the data physically sits, which is a documented sticking point for European compliance and DPO review. For workloads where US jurisdiction is a hard blocker (public-sector, healthcare, or privacy-sensitive consumer apps), an EU-headquartered provider removes the ambiguity entirely. Runsite is EU-registered with data kept inside the EU, so GDPR posture is the default rather than a configuration exercise.
What is the cheapest way to deploy a side project, Firebase or Supabase?
For a single small service, both Firebase and Supabase can look inexpensive on paper. The headline price rarely matches the real bill. Per-service billing, metered bandwidth, build minutes, and add-ons for databases or key-value stores stack up quickly, and neither platform offers a hard spending cap to stop a surprise invoice. The cheapest predictable option is one with fixed monthly pricing and an enforced ceiling. Runsite bills in EUR from €5/month with hard spending caps and Telegram alerts, plus a permanent free tier, so a side project stays cheap by design, not by careful monitoring.
// explore alternatives
Try the European Alternative
Skip the Firebase vs Supabase debate. Deploy on Runsite.
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