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Redis vs YugabyteDB

Redis logo

Redis

Technology

The real-time data platform

From
Free
Rated
-
Full reviewWebsite
YugabyteDB logo

YugabyteDB

Databases

Open source distributed SQL database for cloud native apps

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Redis licensing changed from BSD to AGPL in 2025, impacting open-source usage; YugabyteDB missing PostgreSQL functions and extensions despite claiming compatibility
  • They diverge on capability: Redis covers In-memory data store, YugabyteDB covers PostgreSQL Compatible.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Redis and YugabyteDB actually diverge.

Attributes where Redis and YugabyteDB differ
AttributeRedisYugabyteDB
PlatformsLinux, macOS, WindowsCloud, On-premises, Kubernetes
CategoryTechnologyDatabases
Founded20092016

Identical on both: starting price (Free), pricing model (Unknown), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Redis

  • In-memory data store
  • Data structures
  • Pub/Sub messaging
  • Lua scripting
  • Transactions
  • Persistence options
  • Replication
  • Clustering

Only in YugabyteDB

  • PostgreSQL Compatible
  • Distributed SQL
  • Geo-distribution
  • Linear Scalability
  • High Availability
  • ACID Transactions
  • CDC Support
  • PostgreSQL

What people use each for

The jobs each tool is most often brought in to do.

Redis

  • Cachingnot YugabyteDB
  • Session managementnot YugabyteDB
  • Real-time analyticsnot YugabyteDB
  • Message queuingnot YugabyteDB
  • Leaderboardsnot YugabyteDB

YugabyteDB

  • Transaction processingnot Redis
  • Data storagenot Redis
  • Application backendnot Redis
  • Reportingnot Redis
  • Data analyticsnot Redis

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Redis

  • Licensing changed from BSD to AGPL in 2025, impacting open-source usage
  • All data must fit in memory, limiting scalability to available RAM
  • No built-in support for multi-tenancy
  • Limited transaction support compared to traditional databases

YugabyteDB

  • Missing PostgreSQL functions and extensions despite claiming compatibility
  • Not a true PostgreSQL replacement requiring schema and query compatibility testing before migration
  • Requires careful isolation level management or risk data corruption in production
  • Lacks built-in OLAP capabilities, requiring external systems for analytics
  • Coupled compute and storage scaling reduces optimization flexibility

Pricing, plan by plan

Redis

Free

No published plan breakdown. See the Redis review.

YugabyteDB

Free

No published plan breakdown. See the YugabyteDB review.

Which should you pick?

Choose Redis if

  • You need in-memory data store.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want data structures.
Redis review

Choose YugabyteDB if

  • You need postgresql compatible.
  • You want to start without paying.
  • You work on Cloud, On-premises, Kubernetes.
  • You also want distributed sql.
YugabyteDB review

Questions people ask

Is Redis or YugabyteDB better?
Neither clearly leads. Redis starts at Free and YugabyteDB at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Redis or YugabyteDB?
Redis starts at Free and YugabyteDB at Free.
Does Redis or YugabyteDB run on more platforms?
Redis runs on Linux, macOS, Windows. YugabyteDB runs on Cloud, On-premises, Kubernetes.
Can I use Redis for free?
Both have a free tier, so you can try either at no cost before committing.
What is Redis best used for?
Redis is most often used for caching, session management, real-time analytics, message queuing. Of those, caching and session management are not what YugabyteDB is typically brought in for.
What can Redis do that YugabyteDB cannot?
Redis covers In-memory data store, Data structures, Pub/Sub messaging, Lua scripting. YugabyteDB covers PostgreSQL Compatible, Distributed SQL, Geo-distribution, Linear Scalability.

Answered from the vendors’ own pages

Redis: Is Redis open source?

Redis was open source under the BSD license since its inception in 2009 and has remained open source. However, in 2024-2025, Redis Labs changed licensing to source-available and AGPL, prompting the creation of Valkey, a BSD-licensed open-source fork.

Source
YugabyteDB: Is YugabyteDB a true drop-in replacement for PostgreSQL?

No, YugabyteDB is PostgreSQL-compatible but not a zero-change drop-in replacement. It requires compatibility testing with queries, stored procedures, and ORM configurations before migration.

Source
Redis: What is Redis used for?

Redis is an in-memory data structure store used primarily as a cache, database, and message broker. It provides high-speed data access for real-time applications, sessions, leaderboards, real-time analytics, and other use cases requiring fast data retrieval.

Source
YugabyteDB: What isolation levels does YugabyteDB support?

YugabyteDB allows per-query selection between serializable isolation for critical operations and read-committed for analytics. However, this flexibility requires careful management to avoid accidental data corruption.

Source
YugabyteDB: Does YugabyteDB support both SQL and NoSQL workloads?

Yes, YugabyteDB offers YSQL for PostgreSQL-compatible SQL and YCQL for Cassandra-like NoSQL workloads, using the same DocDB storage engine to support both simultaneously.

Source
YugabyteDB: Can YugabyteDB scale compute and storage independently?

No, YugabyteDB couples compute and storage scaling, unlike TiDB which separates them. This means scaling decisions are less flexible and optimization is more complex.

Source
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