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Technology · head to head

Redis vs Redpanda

Redis logo

Redis

Technology

The real-time data platform

From
Free
Rated
-
Full reviewWebsite
Redpanda logo

Redpanda

Databases

Kafka-compatible streaming platform with no ZooKeeper or JVM

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; Redpanda the community edition is source-available rather than OSI open source, which matters for some procurement
  • They diverge on capability: Redis covers In-memory data store, Redpanda covers Kafka API compatible.

Where they differ

Only the attributes on which Redis and Redpanda actually diverge.

Attributes where Redis and Redpanda differ
AttributeRedisRedpanda
Pricing modelUnknownSource-available community edition with paid enterprise and cloud tiers
PlatformsLinux, macOS, WindowsLinux, Docker, Kubernetes, Self-hosted
CategoryTechnologyDatabases
Founded2009Unknown

Identical on both: starting price (Free), 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 Redpanda

  • Kafka API compatible
  • No JVM or ZooKeeper
  • Thread-per-core
  • Built-in HTTP proxy and schema registry

What people use each for

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

Redis

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

Redpanda

  • Kafka workloads where the operational cost of running Kafka is the blockernot Redis
  • Latency-sensitive streaming where tail latency mattersnot Redis
  • Smaller teams wanting streaming without a dedicated platform groupnot 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

Redpanda

  • The community edition is source-available rather than OSI open source, which matters for some procurement
  • Kafka API compatibility is high but not total, and deep ecosystem tools can hit gaps
  • Smaller community than Kafka, so fewer people have solved your problem before
  • Some operational and tiered-storage features are enterprise-only

Pricing, plan by plan

Redis

Free

No published plan breakdown. See the Redis review.

Redpanda

Free
  • CommunityFree
    • Kafka-compatible broker
    • Single binary
    • Community support

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 Redpanda if

  • You need kafka api compatible.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want no jvm or zookeeper.
Redpanda review

Questions people ask

Is Redis or Redpanda better?
Neither clearly leads. Redis starts at Free and Redpanda at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Redis or Redpanda?
Redis starts at Free and Redpanda at Free.
Does Redis or Redpanda run on more platforms?
Redis runs on Linux, macOS, Windows. Redpanda runs on Linux, Docker, Kubernetes, Self-hosted.
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 Redpanda is typically brought in for.
What can Redis do that Redpanda cannot?
Redis covers In-memory data store, Data structures, Pub/Sub messaging, Lua scripting. Redpanda covers Kafka API compatible, No JVM or ZooKeeper, Thread-per-core, Built-in HTTP proxy and schema registry.

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
Redpanda: Is Redpanda free?

A community edition is free and source-available. Enterprise features and Redpanda Cloud are paid, and the licence is not OSI open 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
Redpanda: Can I use my Kafka clients?

Yes. Redpanda implements the Kafka API, so existing clients and most tooling connect without changes.

Redpanda: Why remove ZooKeeper and the JVM?

Both are significant sources of Kafka’s operational burden — tuning, coordination and failure modes. Removing them is the core of Redpanda’s pitch.

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