ioredis vs Jedis
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
A Node.js client for Redis, written in TypeScript, with Cluster, Sentinel, and Streams support.
Open source · MIT
A Java client library for talking to Redis servers from Java code.
The short answer
Choose ioredis if you need…
- Node.js backend developers who already run Redis and want a full-featured client
- Teams maintaining existing projects that already depend on ioredis
- Apps that use Redis Cluster or Sentinel for high availability
- TypeScript projects that want built-in type declarations
Choose Jedis if you need…
- Java developers who need to read and write data in Redis from an application
- Teams building Java services that use Redis Cluster
- Projects that need Redis JSON or vector set support through a Java client
- Developers who want a client with Maven Central distribution and Javadocs
Side-by-side
| ioredis | Jedis | |
|---|---|---|
| Type | Library | Library |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 15.4k | 12.4k |
| Setup difficulty | Beginner | Intermediate |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | TypeScript | Java |
| Last code update | 4 days ago | 4 days ago |
What each one is
ioredis
ioredis is a Redis client library for Node.js. It lets your JavaScript or TypeScript code send commands to a Redis server and read the results, using either callbacks or promises. It also covers Redis Cluster, Sentinel, Pub/Sub, Lua scripting, and TLS connections.
Jedis
Jedis is a Java library that lets Java programs send commands to a Redis server, a fast data store often used for caching and quick lookups. You add it as a dependency in your Java project and call methods that map to Redis commands. The README describes it as designed for performance and ease of use.
Best for
ioredis
- Node.js backend developers who already run Redis and want a full-featured client
- Teams maintaining existing projects that already depend on ioredis
- Apps that use Redis Cluster or Sentinel for high availability
- TypeScript projects that want built-in type declarations
Jedis
- Java developers who need to read and write data in Redis from an application
- Teams building Java services that use Redis Cluster
- Projects that need Redis JSON or vector set support through a Java client
- Developers who want a client with Maven Central distribution and Javadocs
Strengths
ioredis
- Covers a wide range of Redis features, including Cluster, Sentinel, Streams, and TLS
- Ships with official TypeScript declarations and is written in TypeScript
- Supports both Node callbacks and native promises
Jedis
- Covers all Redis data types according to the README, including JSON and VectorSets
- Documented compatibility table listing supported Redis and JDK versions
- MIT licensed, with Javadocs and a documentation site
Not ideal for
ioredis
- New projects: the README says node-redis is the recommended client for new projects and that ioredis is in best-effort maintenance
- Projects that need Redis Stack features like search or JSON as a first-class API, since the README points to node-redis for those
- Non-Node.js environments, since this is a Node.js client
Jedis
- People who want a high-level object mapping layer; the README points to redis-om-spring for that
- Non-Java projects, since this is a Java library (JDK 8 or newer per the compatibility table)
- Anyone who needs a Redis server itself; Jedis is only the client
Trade-offs
ioredis
- The README says ioredis is in best-effort maintenance and recommends node-redis for new projects
- Requires Node.js 20 or newer for the current v6 release, according to the version table
Jedis
- Compatibility depends on version: the table shows different Redis and JDK support ranges for each Jedis release line
- Some advanced features (failover, token auth) need extra reading in separate docs pages
- The README snippet is truncated, so full API details are not visible here
Getting started
ioredis
Install the library
npm install ioredisOptional: add Node.js type declarations in a TypeScript project
npm install --save-dev @types/nodeJedis
Run a local Redis server with Docker
docker run -p 6379:6379 -it redis:latestMaven dependency (add to pom.xml)
<dependency><groupId>redis.clients</groupId><artifactId>jedis</artifactId><version>8.0.1</version></dependency>Frequently asked questions
What is the difference between ioredis and Jedis?
ioredis: A Node.js client for Redis, written in TypeScript, with Cluster, Sentinel, and Streams support. Jedis: A Java client library for talking to Redis servers from Java code. ioredis suits node.js backend developers who already run redis and want a full-featured client, while Jedis suits java developers who need to read and write data in redis from an application.
Are ioredis and Jedis free?
ioredis: Free and open source. Jedis: Free and open source.
Which is easier to set up, ioredis or Jedis?
ioredis is easier to get started with (rated beginner); Jedis is rated intermediate and usually needs more setup.
Is ioredis or Jedis more popular?
ioredis has more GitHub stars (15.4k) than Jedis (12.4k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to ioredis and Jedis?
Other options people compare them with include node-redis, redis-py.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.