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Updated May 2, 2026Databases Comparison

Redis vs Supabase Comparison

A detailed comparison of Redis and Supabase.

R

Redis

The open source, in-memory data store.

Primary Task

In-Memory Cache

Pricing

Open Source

Key Features

  • In-Memory
  • Pub/Sub
  • Lua Scripting
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S

Supabase

The open source Firebase alternative.

Primary Task

Backend DB

Pricing

Freemium

Key Features

  • Postgres Database
  • Realtime Subscriptions
  • Auth & Storage
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At a Glance

FeatureRedisSupabase
Primary TaskIn-Memory CacheBackend DB
Pricing ModelOpen SourceFreemium
Founded20092020
Open Source
Database TypeMulti-modelMulti-model
RealtimeN/A
Built-in Auth
Self-HostableN/AN/A

Pros & Cons

R

Redis

Strengths

  • Extremely fast
  • Flexible data structures
  • Active community

Limitations

  • Limited by RAM
  • Persistence options complex
  • Not ideal as primary database
S

Supabase

Strengths

  • Open Source
  • Postgres-based
  • Unlimited API requests on Pro

Limitations

  • Complex RLS policies
  • No built-in caching
  • Slower initial response on free tier (Cold starts)
Final Decision

The Verdict

Both tools are excellent. Here's how to choose the right one for your project.

R

Choose Redis

Best for

  • Strong In-Memory capabilities
  • Open Source pricing model
  • In-Memory Cache workflows
S

Choose Supabase

Best for

  • Postgres Database focused projects
  • Freemium approach
  • Backend DB use cases

Frequently Asked Questions

What is the main difference between Redis and Supabase?

Redis is primarily a In-Memory Cache, while Supabase is focused on Backend DB. The open source, in-memory data store. The open source Firebase alternative.

Is Redis open source?

Yes, Redis is open source.

Is Supabase open source?

No, Supabase is a commercial product with a freemium model.

Which is better for Databases?

It depends on your specific needs. Redis is often chosen for its in-memory capabilities, while Supabase is popular for its postgres database features.