Is Redis better than PostgreSQL in 2026?

It depends on your needs. Both rated 4.5/5 by users. Redis excels at in-memory data structure store for caching, pub/sub, and latency-sensitive workloads., while PostgreSQL focuses on open-source relational database with jsonb, full-text search, and extensions like pgvector and timescaledb.. Redis starts at $7/mo; PostgreSQL starts at free tier.

Which is cheaper, Redis or PostgreSQL?

Redis starts at $7/mo; PostgreSQL starts at free tier. Redis has a free plan, and PostgreSQL also offers a free tier.

Can I migrate from Redis to PostgreSQL?

Most users can switch between these tools. PostgreSQL supports data import from Redis. Plan 1-3 days for migration depending on data volume and team size.

What are the key differences between Redis and PostgreSQL?

Redis uniquely offers In-Memory Storage, Persistent Storage (RDB/AOF), Pub/Sub Messaging. PostgreSQL uniquely offers ACID Transactions, Advanced SQL, JSON/JSONB Support. Both share 0 features. Redis starts at $7/mo; PostgreSQL starts at free tier. Founded in 2009 and 1996 respectively.

When was this Redis vs PostgreSQL comparison last updated?

This comparison was last updated on May 13, 2026. We review and refresh our comparisons regularly to reflect the latest pricing, features, and ratings from Redis and PostgreSQL.

Home›Databases›Compare›Redis vs PostgreSQL

Updated May 13, 2026 · Independent Analysis

RedisvsPostgreSQL

Capability Overview

Redisvs PostgreSQL

★ 4.5/5-0.1 vs PostgreSQL

Only in Redis

✦ In-Memory Storage
✦ Persistent Storage (RDB/AOF)
✦ Pub/Sub Messaging

✓ Free planFrom $7/mo10M+ users · est. 2009

View Full Review Try Redis Free

PostgreSQLvs Redis

★ 4.6/5+0.1 vs Redis

Only in PostgreSQL

✦ ACID Transactions
✦ Advanced SQL
✦ JSON/JSONB Support

✓ Free planMost popular users · est. 1996

View Full Review Try PostgreSQL Free

Pricing Features Pros & Cons At a Glance FAQ Related

Pricing Intelligence

Redis Plans

Free tier available

Open Source0

Open Source

• Full Redis
• RSAL license
• Community support

Redis CloudBest Value

$7/mo

• Managed Redis
• Free 30MB tier
• 99.999% SLA

Full Redis Pricing Breakdown →

PostgreSQL Plans

Free tier available

Open Source0

Open Source

• Full SQL
• Extensions ecosystem
• Community support

Full PostgreSQL Pricing Breakdown →

Feature Matrix

5 differences found across 10 standardized features

Feature

Redis

PostgreSQL

ACID Transactions

✗

✓

Horizontal Scaling

✓

✗

Time Series

✓

✗

Multi-Model

✓

✗

Serverless

✗

✓

Total (raw)

Pros & Cons Face-Off

Evaluative strengths and weaknesses — not feature lists

Redis

Pros

+Sub-millisecond latency — fastest data store for caching
+Universal — supported by every framework and language
+Rich data structures for real-time use cases
+Redis Stack adds search, JSON, and vector capabilities

Cons

−License changed to RSAL — Valkey is the open-source BSD fork
−In-memory storage makes large datasets expensive

PostgreSQL

Pros

+#1 most-loved database — massive community and ecosystem
+Rich extensions (pgvector, PostGIS, TimescaleDB)
+Zero licensing cost with enterprise-grade features
+Available managed on all major clouds

Cons

−Horizontal write scaling requires external solutions (Citus)
−Large cluster operations require database expertise

At a Glance

User Rating

4.5/5vs4.6/5

Redis

PostgreSQL

▲

Starting Price

$7/movsPay-per-use

Redis

▲

PostgreSQL

Feature Count

16 featuresvs16 features

Redis

PostgreSQL

User Base

10.0Mvs0

Redis

▲

PostgreSQL

Frequently Asked Questions

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Authored by Oleh KemExpert verified·Updated May 13, 2026·Our methodology