Supabase vs Firebase: Which One for Small Teams?
Supabase has 99,530 stars on GitHub. Firebase doesn’t even publish its GitHub stars because it’s part of Google’s closed ecosystem. But star counts don’t build apps — deciding between Supabase vs Firebase for small teams comes down to real-world trade-offs: flexibility, cost, ease of use, and how much control you want over your backend.
| Feature | Supabase | Firebase |
|---|---|---|
| GitHub Stars | 99,530 | N/A (Proprietary) |
| GitHub Forks | 11,862 | N/A |
| Open Issues | 966 | N/A |
| License | Apache-2.0 (Open Source) | Proprietary (Google) |
| Last Release Date | 2026-03-23 | Continuous Updates (No Single Release) |
| Starting Price | Free tier available, paid plans starting at $25/mo | Free tier available, pay-as-you-go for usage |
Supabase Deep Dive
Supabase bills itself as an open-source Firebase alternative, and that’s exactly why it’s become the darling of indie devs and small teams tired of vendor lock-in and black-box backends. It’s essentially a backend-as-a-service built on PostgreSQL, combining database + real-time subscriptions + authentication + storage, all with an easy-to-use API and a dashboard you won’t cringe at.
What Supabase really does is give you a straight shot at building apps with a classic SQL database under the hood. Everything’s real PostgreSQL: triggers, views, stored procedures — which means you can write raw SQL whenever you want. On top of this, it automatically generates RESTful and GraphQL APIs. Plus, the real-time features come from listening on Postgres replication changes — geeky, but it works.
Here’s how you’d create a new user and fetch a list of projects in Supabase with their JS library:
// Initialize Supabase client
import { createClient } from '@supabase/supabase-js'
const supabase = createClient('https://xyzcompany.supabase.co', 'public-anonymous-key')
// Sign up a new user
const { user, error } = await supabase.auth.signUp({
email: '[email protected]',
password: 'SuperSecret!'
})
if (error) {
console.error('Signup failed:', error.message)
} else {
console.log('User created:', user)
}
// Fetch projects table
const { data, error: fetchError } = await supabase
.from('projects')
.select('*')
if (fetchError) {
console.error('Error fetching projects:', fetchError.message)
} else {
console.log('Projects:', data)
}
What’s good about Supabase?
- Open source. You can self-host and patch things. For small teams that hate relying entirely on a cloud behemoth, this is a massive plus.
- Real PostgreSQL. That means you’re not restricted to some proprietary NoSQL/SQL hybrid. If you know SQL, you’re off to the races.
- Easy real-time support. Unlike Firebase’s Firestore, you get real-time with minimal fuss thanks to Postgres’s built-in replication.
- Authentication options. Supabase supports OAuth, magic links, phone auth — mostly what your average app needs.
- Good dashboard UI. They’re constantly improving it, and it’s clean and intuitive enough for small teams and solo makers.
What sucks about Supabase?
- It’s still got some rough edges. The open issues count (966 as of March 2026) shows this isn’t a polished enterprise giant. Bugs can be quirky.
- Self-hosting requires ops knowledge. If your team doesn’t want to babysit Postgres replication and infrastructure, the managed tier isn’t cheap.
- Limited serverless functions. Firebase Functions are ahead in this area, Supabase is building theirs but it’s nowhere near stable or feature-complete.
- Documentation can be inconsistent depending on the feature.
Also, if you’re coming from a NoSQL mindset, all the SQL stuff might feel intimidating at first. But honestly, SQL is a Good Thing for data integrity and querying flexibility — just sayin’.
Firebase Deep Dive
Firebase is Google’s proprietary backend-as-a-service that’s been around for nearly a decade. It’s got a suite of tools: Firestore (NoSQL database), Realtime Database, Cloud Functions, Auth, Storage, and more. It’s designed to make life simple by handling scaling, user management, and data synchronization for you automatically.
If you want to create a user and then fetch some project documents from Firestore, here’s what that looks like in Node/JavaScript:
// Initialize Firebase app
import { initializeApp } from 'firebase/app';
import { getAuth, createUserWithEmailAndPassword } from 'firebase/auth';
import { getFirestore, collection, getDocs } from 'firebase/firestore';
const firebaseConfig = {
apiKey: 'your-api-key',
authDomain: 'your-app.firebaseapp.com',
projectId: 'your-app',
};
const app = initializeApp(firebaseConfig);
const auth = getAuth(app);
const db = getFirestore(app);
// Sign up new user
createUserWithEmailAndPassword(auth, '[email protected]', 'SuperSecret!')
.then((userCredential) => {
console.log('User created:', userCredential.user);
})
.catch((error) => {
console.error('Signup failed:', error.message);
});
// Fetch projects collection
async function fetchProjects() {
const projectsCol = collection(db, 'projects');
const projectSnapshot = await getDocs(projectsCol);
const projectsList = projectSnapshot.docs.map(doc => doc.data());
console.log('Projects:', projectsList);
}
fetchProjects();
What’s good about Firebase?
- Multiple database options. Realtime Database for simple JSON tree storage or Firestore for scalable NoSQL document storage.
- Serverless functions. Integrated Cloud Functions work flawlessly with other Firebase products.
- Google ecosystem integration. Big if you’re deep into AdMob, Google Analytics, or BigQuery.
- Excellent documentation and stability. They’ve ironed out most bugs over the years.
- Easy to start. Great SDKs for web, iOS, Android, Unity — your small team won’t have much to configure.
What sucks about Firebase?
- Proprietary and closed source, so vendor lock-in is a serious issue. Migrating out can be a huge pain.
- NoSQL databases can lead to odd data duplication and complex query structures.
- Realtime Database is less flexible and Firestore, while better, has query limitations (e.g., no OR queries, certain indexing constraints).
- Pricing can skyrocket unpredictably because usage is metered and can explode with poorly designed rules or queries.
- Authentication customization is limited compared to the freedom you get with Supabase’s Postgres + custom auth rules.
Supabase vs Firebase: Head-to-Head
| Criteria | Supabase | Firebase | Winner |
|---|---|---|---|
| Data Model | PostgreSQL (relational, SQL queries, joins, ACID compliance) | NoSQL (Firestore: document store, Realtime DB: JSON tree) | Supabase – SQL is more flexible and predictable |
| Open Source | Yes, Apache-2.0 licensed, fully open source | No, proprietary Google platform | Supabase – you can self-host and audit easily |
| Real-time capabilities | Built-in, via Postgres replication, simple subscriptions | Realtime DB and Firestore real-time listeners | Equal – both have solid real-time, but Supabase edges out with SQL subscriptions |
| Serverless Functions / Extensibility | Limited, experimental | Cloud Functions are mature, tightly integrated | Firebase – mature functions service |
| Community and Ecosystem | Strong and growing GitHub community (99k stars) | Enterprise scale with years of history | Depends on your view – Firebase wins in sheer ecosystem size, Supabase in community openness |
| Pricing Predictability | Fixed plans, metered usage but more predictable | Pay as you go, can become unexpectedly expensive | Supabase – better pricing control for small teams |
The Money Question: Pricing Breakdown
Let’s talk cash, because a small team can’t afford billing surprises that wipe out your food budget. Here’s a rough breakdown of pricing models as of early 2026; always check official pricing pages before committing.
| Plan | Supabase | Firebase |
|---|---|---|
| Free Tier | Up to 500 MB database + 1 GB storage + 2 million function calls/month | Up to 1 GB database + 10 GB storage, 125k Cloud Function invocations |
| Entry Paid | $25/month for 8 GB DB + 50 GB storage + 50 million requests | Pay-as-you-go: cost scales with reads, writes, bandwidth, functions usage |
| Hidden Costs | $ for extra bandwidth and storage | Potential spikes for reads/writes, network egress, and Cloud Functions |
| Self-hosting Option | Free, but requires your own infra | None |
Firebase pricing is famously tricky to predict because it charges literally for every single read, write, and connection, with no flat plans. This can be a bottleneck for small teams who don’t want to babysit usage daily or optimize queries obsessively. Supabase’s pricing model is more straightforward — fixed tiers with clear limits.
But, take it with a grain of salt: If you self-host Supabase, you’re responsible for managing infrastructure, backups, and uptime. This can shift costs from dollar outlay to dev hours — and nobody likes those hidden opportunity costs.
My Take: Who Should Pick What?
Honestly, I juggled both in side projects and client work. Here’s where I think each fits:
| Developer Persona | Recommendation | Reasoning |
|---|---|---|
| Hobbyist / Indie Maker | Supabase | You want SQL power, open source, and fixed pricing. Plus, the ability to host yourself when you grow. |
| Small SaaS Startup | Firebase | If you want simplicity, no ops overhead, and solid serverless functions integration, Firebase can be your backend babysitter. |
| Team with Backend Expertise | Supabase | Your team knows SQL and wants control over the data layer, custom SQL queries, and the freedom of open source APIs. |
However, if you’re the kind of developer who pretends they don’t need infrastructure knowledge but then ends up debugging forever, Firebase might save you hours. Conversely, if quick setups annoy you and you prefer writing raw SQL over clicking in GUIs, Supabase is a better match.
FAQ
Q: Can I migrate from Firebase to Supabase easily?
A: Nope, not easily. Firebase’s NoSQL data model doesn’t map cleanly to SQL tables. You’ll likely need a custom migration script and data transformations. It’s doable but prepare for some painful data modeling work.
Q: Which one supports offline-first apps better?
A: Firebase has better offline support out-of-the-box with Firestore syncing on mobile devices. Supabase’s real-time capabilities are strong but offline-first is not a first-class citizen yet.
Q: How do they compare on scaling?
A: Firebase is battle-tested at Google scale, so it wins on shear scalability without you worrying. Supabase can scale too but might require more manual tuning or moving to bigger cloud infrastructure.
Q: What about authentication customization?
A: Supabase gives you PostgreSQL triggers that can be used to customize auth flows deeply, and you can add custom OAuth providers more flexibly. Firebase’s Auth is easier to implement but less customizable beyond what they provide.
Q: Are there alternatives I should consider?
A: Definitely! Appwrite, Hasura, and AWS Amplify are all in this space but none are as close a Firebase alternative as Supabase at the moment. Worth checking as your needs grow.
Data Sources
- Supabase GitHub Repository (Accessed March 23, 2026)
- Firebase Official Pricing (Accessed March 23, 2026)
- Supabase Official Pricing (Accessed March 23, 2026)
- Firebase Documentation (Accessed March 23, 2026)
- Supabase Documentation (Accessed March 23, 2026)
Data as of March 23, 2026. Sources: https://github.com/supabase/supabase, https://firebase.google.com/pricing, https://supabase.com/pricing, https://firebase.google.com/docs, https://supabase.com/docs
Related Articles
- Building a Translation Bot with GPT: Lessons Learned
- Unfiltered AI Chatbot: Get Raw, Uncensored Answers Now
- Conversation Design: Crafting Engaging and Natural Dialogues
🕒 Last updated: · Originally published: March 23, 2026