Supabase vs MongoDB Atlas
Supabase is Open-source Firebase alternative providing a Postgres database, authentication, storage, and edge functions, while MongoDB Atlas is Managed MongoDB service with auto-scaling, full-text search, and multi-cloud support. The biggest difference up front: MongoDB Atlas is free, while Supabase starts at $25/mo. Supabase is built for developers who want a full backend with postgres at the core, whereas MongoDB Atlas targets teams wanting managed nosql database in the cloud.
| Feature | Supabase | MongoDB Atlas |
|---|---|---|
| Free tier available | ✓ | ✓ |
| Open source | ✓ | — |
| Auth | ✓ | — |
| Charts | — | ✓ |
| Document DB | — | ✓ |
| Edge Functions | ✓ | — |
| Multi-Cloud | — | ✓ |
| Postgres | ✓ | — |
| Realtime | ✓ | — |
| Search | — | ✓ |
| Storage | ✓ | — |
Pricing: MongoDB Atlas is completely free (Free M0 cluster), which makes it the obvious pick if budget is the top concern. Supabase starts at $25/mo, but Free for 2 projects, pauses after inactivity. That cost buys you a more polished or feature-rich experience, so it comes down to whether the extras justify the spend.
Feature gaps: Supabase offers Auth, Edge Functions and Postgres that MongoDB Atlas lacks. MongoDB Atlas brings Charts, Document DB and Multi-Cloud that Supabase does not have.
Team fit: Both tools target any size teams, so the decision hinges on features and workflow fit rather than scale.
Open source: Supabase is open source, meaning you can self-host, audit the code, and avoid vendor lock-in. MongoDB Atlas is proprietary — you are trusting the vendor with your data and uptime.
Where each tool shines: Supabase's biggest strengths are: full postgres database with sql access and extensions. open source with self-hosting option for full control. MongoDB Atlas's biggest strengths are: includes document db as a core feature, purpose-built for database workflows. includes search as a core feature, purpose-built for database workflows.
Watch out for: With Supabase, users commonly note that free tier pauses inactive projects after one week. With MongoDB Atlas, the main complaint is that free plan exists but key features are locked behind the paid upgrade.
choose Supabase if
- Your profile matches its sweet spot: developers who want a full backend with postgres at the core
- You need self-hosting, data sovereignty, or the ability to audit source code
- You specifically need Auth and Edge Functions
- You care about open source with self-hosting option for full control
- The free tier works for you: free for 2 projects, pauses after inactivity
choose MongoDB Atlas if
- Your profile matches its sweet spot: teams wanting managed nosql database in the cloud
- Budget is a hard constraint — MongoDB Atlas is free, Supabase is not
- You specifically need Charts and Document DB
- You care about includes search as a core feature, purpose-built for database workflows
- The free tier works for you: free m0 cluster
frequently asked
What is the difference between Supabase and MongoDB Atlas?
Supabase is Open-source Firebase alternative providing a Postgres database, authentication, storage, and edge functions, while MongoDB Atlas is Managed MongoDB service with auto-scaling, full-text search, and multi-cloud support. The biggest difference up front: MongoDB Atlas is free, while Supabase starts at $25/mo. Supabase is built for developers who want a full backend with postgres at the core, whereas MongoDB Atlas targets teams wanting managed nosql database in the cloud.
Should I use Supabase or MongoDB Atlas?
MongoDB Atlas is the free option; Supabase charges $25/mo but may offer more polish. Here is how they compare.
When should I choose Supabase over MongoDB Atlas?
Choose Supabase if Your profile matches its sweet spot: developers who want a full backend with postgres at the core; You need self-hosting, data sovereignty, or the ability to audit source code; You specifically need Auth and Edge Functions; You care about open source with self-hosting option for full control; The free tier works for you: free for 2 projects, pauses after inactivity.
When should I choose MongoDB Atlas over Supabase?
Choose MongoDB Atlas if Your profile matches its sweet spot: teams wanting managed nosql database in the cloud; Budget is a hard constraint — MongoDB Atlas is free, Supabase is not; You specifically need Charts and Document DB; You care about includes search as a core feature, purpose-built for database workflows; The free tier works for you: free m0 cluster.
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