redis-windows/redis-windows: a Cygwin build of Redis for Windows machines

What problem redis-windows/redis-windows solves, and for whom

Redis does not ship an official Windows build, and the project's own README states this repository is not affiliated with, endorsed by, or sponsored by Redis Ltd. So anyone who wants a Redis server process on a Windows laptop has to choose between a Docker container, a commercial Windows port, or a community build. This repository is the third option: binaries compiled from official Redis source for Windows, covering Redis 6.0.20, 6.2.18, 7.0.15, 7.2.8, 7.4.3 and 8.0.0 according to the description, with release tags such as 8.10.2, 8.8.3 and 8.6.7 published in September 2026.

The audience is narrow and worth stating plainly. It is a developer on Windows who wants to run redis-cli against a local server, test cache behaviour, or exercise a queue without installing Docker Desktop or paying for a commercial port. It is not a server operator. The README's disclaimer says the build is recommended for local development only, and that production environments should follow Redis's official guidance and deploy on Linux. That sentence does most of the positioning work for the project.

Cygwin runtime, .NET wrapper, and the path conversion that follows

The repository layout tells you the architecture before you read a line of documentation. Native/ holds the compiled Redis binaries. CommandLine/ and Service/ plus Program.cs and RedisService.csproj make up a .NET 10.0 service wrapper. start.bat is the convenience entry point. The build toolchain is MSYS2 / Cygwin, and that single fact explains the most surprising thing about the project.

Because the Redis server binary is built against the Cygwin runtime, it does not understand Windows paths. The README shows the correct and incorrect forms side by side: redis-server.exe /cygdrive/c/config/redis.conf --dir /cygdrive/d/data --port 6379 works, while redis-server.exe C:\config\redis.conf --dir D:\data does not. RedisService.exe exists to absorb that difference. The README says it automatically handles path conversion and that you should use native Windows paths with it. That is the whole design: a thin .NET layer that translates Windows to Cygwin paths, forwards arguments, and can register the process as a Windows service.

The config file is a third syntax. Inside redis.conf the README recommends forward slashes with a drive letter, for example dir C:/redis/data and logfile C:/redis/logs/redis.log. So a single deployment can involve three path conventions: Windows paths on the RedisService command line, Cygwin paths when calling redis-server.exe directly, and forward-slash Windows paths inside the config file. That is the main cognitive cost of this project.

Installing Redis on Windows 11 and running a first SET

The README does not document an installer download page or a package manager command. It says "After download and extract", so the entry point is the release archive for the version you want. Once extracted, the recommended route is RedisService.exe, which the README marks as the preferred option.

To run in the foreground on the default port with an explicit data directory, the README gives this form:

RedisService.exe run --foreground --port 6379 --dir C:\redis-data

The server stays attached to the console, and because --dir is passed through, the README states that RedisService correctly passes --dir so data is saved to the directory you named. If you prefer the raw binary, the same start looks like this, with Cygwin paths:

redis-server.exe /cygdrive/c/config/redis.conf --dir /cygdrive/d/data --port 6379

With the server up, the persistence cycle the README documents is three commands. Write a key, shut down gracefully, restart, read it back:

redis-cli SET mykey myvalue
redis-cli SHUTDOWN
redis-cli GET mykey

After the restart the README says the GET returns "myvalue". If it does not, the FAQ points at two causes: --dir was not specified, or the process was killed instead of shut down gracefully. For a long-running setup, the service path is RedisService.exe install with -c, --dir and --port, followed by net start Redis, and RedisService.exe uninstall to remove it. The CLI reference also lists --service-name (default Redis), --start-mode (auto or manual), --loglevel and -f, --foreground.

Where this build is the wrong tool

The README answers this one itself, and it is worth taking at face value rather than treating as boilerplate. It says the project is recommended for local development only and that production deployments should follow Redis's official guidance and run on Linux. It also disclaims responsibility for losses caused by use of the project. If your workload has durability requirements, replication topologies, or a failover story, this is not the build to build that on.

The second limitation is the path model. Every person who touches the server through redis-server.exe has to remember Cygwin syntax, and a Windows path passed to that binary is silently the wrong argument rather than an obvious error, which is why the README devotes a table to the mapping. RedisService.exe removes the problem for the service and run commands, but it does not change what the underlying binary accepts, so any script that calls redis-server.exe directly inherits the constraint.

The third is that the README does not document rollback, downgrade or upgrade procedures between the Redis versions this repository packages. There are releases for 6.x through 8.x, but nothing in the project's own documentation describes what happens to an existing data directory when you move a config from one of those to another, or how to revert. If you pin a version, verify the migration path yourself before changing it.

How it differs from Docker and from Memurai

The obvious alternative is running Redis in Docker on Windows. The difference is not performance, it is the shape of the dependency. Docker gives you the official Redis image and the official Linux behaviour, at the cost of running a container runtime and a Linux VM layer on the machine. This project gives you a native Windows process with no container runtime, at the cost of a Cygwin-based binary and the path rules that come with it. If your team already runs Docker Desktop, the container is closer to what production looks like.

Memurai is the other name people search alongside this project. It is a commercial Redis-compatible server for Windows, so the trade is licence and support against a free community build. The README's disclaimer is relevant here: the Apache-2.0 licence in this repository applies only to this repository, not to the official Redis project, so the licence you get is not the same thing as Redis's own licensing. Choosing between the two comes down to whether you want a paid vendor relationship or a self-supported build.

The third option is simply running Redis on Linux, in WSL2 or on a remote host. That is what the README's own production advice points at, and for anything beyond a development workstation it is the least surprising choice.

Maintenance, licensing and the cost of keeping up

The repository is not archived, and the last push was on 2026-09-19, with release 8.8.3 tagged the same day and 8.10.2 on 2026-09-18. Multiple Redis lines are maintained in parallel, which is useful if you are pinned to 6.2 or 7.0 and do not want to jump to 8.x.

The upgrade cost is not the wrapper, which is a small .NET 10.0 program, but the version matrix. Each release corresponds to a Redis version, and the README does not describe an upgrade or rollback procedure, so moving between them means verifying your data directory and config yourself. Budget for that rather than assuming a drop-in swap.

On licensing, the repository is Apache-2.0 and the README states the licence provided here applies only to this repository, not to the official Redis project. That distinction matters because Redis's own licensing has changed over time and this project does not inherit it. Nothing here is legal advice; if you are distributing software that bundles these binaries, check the terms that apply to the Redis version you picked.

Editorial conclusion

Adopt this if you need a Redis server on a Windows workstation for local development and you accept the Cygwin path rules, or you route everything through RedisService.exe so you never type a Cygwin path. Do not adopt it for production: the README itself says it is recommended for local development only and points production users to Linux. Before relying on it, verify three things on your own machine: that redis-server.exe resolves your config with the /cygdrive/ prefix, that a redis-cli SET followed by SHUTDOWN and a restart returns the value, and which release tag matches the Redis version your client library expects.

Frequently asked questions

Official sources

1. Issues
2. License: Apache-2.0
3. README
4. redis-windows/redis-windows on GitHub
5. Releases