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Librespeed is a very lightweight Speedtest implemented in Javascript, using XMLHttpRequest and Web Workers.

No Flash, No Java, No Websocket, No Bullshit.


Supported Architectures

We utilise the docker manifest for multi-platform awareness. More information is available from docker here and our announcement here.

Simply pulling should retrieve the correct image for your arch, but you can also pull specific arch images via tags.

The architectures supported by this image are:

Architecture Available Tag
x86-64 amd64-<version tag>
arm64 arm64v8-<version tag>

Application Setup

Access the speedtest webui at http://SERVERIP. The results database can be accessed at http://SERVERIP/results/stats.php with the password set.
The default template used is based on example-singleServer-full.html. However, all templates are provided for reference at /config/www/. Feel free to customize /config/www/index.html as you like. Delete the file and restart to go back to the image default.

You can optionally place customized speedtest.js and speedtest_worker.js files under /config/www and they will supersede the defaults after a container start. Keep in mind that once you do so, they will no longer be updated. You can delete them and recreate the container to go back to the image defaults.

If you are setting up a mysql or postgresql database, you first need to import the tables into your database as described at the following link

To enable a custom results page set the environment variable CUSTOM_RESULTS=true and start (or restart) the container at least once for /config/www/results/index.php to be created and modify this file to your liking.


To help you get started creating a container from this image you can either use docker-compose or the docker cli.

    container_name: librespeed
      - PUID=1000
      - PGID=1000
      - TZ=Etc/UTC
      - CUSTOM_RESULTS=false #optional
      - DB_TYPE=sqlite #optional
      - DB_NAME=DB_NAME #optional
      - DB_HOSTNAME=DB_HOSTNAME #optional
      - DB_USERNAME=DB_USERNAME #optional
      - DB_PASSWORD=DB_PASSWORD #optional
      - DB_PORT=DB_PORT #optional
      - /path/to/librespeed/config:/config
      - 80:80
    restart: unless-stopped

docker cli (click here for more info)

docker run -d \
  --name=librespeed \
  -e PUID=1000 \
  -e PGID=1000 \
  -e TZ=Etc/UTC \
  -e CUSTOM_RESULTS=false `#optional` \
  -e DB_TYPE=sqlite `#optional` \
  -e DB_NAME=DB_NAME `#optional` \
  -e DB_HOSTNAME=DB_HOSTNAME `#optional` \
  -e DB_USERNAME=DB_USERNAME `#optional` \
  -e DB_PASSWORD=DB_PASSWORD `#optional` \
  -e DB_PORT=DB_PORT `#optional` \
  -p 80:80 \
  -v /path/to/librespeed/config:/config \
  --restart unless-stopped \


Containers are configured using parameters passed at runtime (such as those above). These parameters are separated by a colon and indicate <external>:<internal> respectively. For example, -p 8080:80 would expose port 80 from inside the container to be accessible from the host's IP on port 8080 outside the container.

Ports (-p)

Parameter Function
80 web gui

Environment Variables (-e)

Env Function
PUID=1000 for UserID - see below for explanation
PGID=1000 for GroupID - see below for explanation
TZ=Etc/UTC specify a timezone to use, see this list.
PASSWORD=PASSWORD Set the password for the results database.
CUSTOM_RESULTS=false (optional) set to true to enable custom results page in /config/www/results/index.php.
DB_TYPE=sqlite Defaults to sqlite, can also be set to mysql or postgresql.
DB_NAME=DB_NAME Database name. Required for mysql and pgsql.
DB_HOSTNAME=DB_HOSTNAME Database address. Required for mysql and pgsql.
DB_USERNAME=DB_USERNAME Database username. Required for mysql and pgsql.
DB_PASSWORD=DB_PASSWORD Database password. Required for mysql and pgsql.
DB_PORT=DB_PORT Database port. Required for mysql.
IPINFO_APIKEY=ACCESS_TOKEN Access token from Required for detailed IP information.

Volume Mappings (-v)

Volume Function
/config Persistent config files

Miscellaneous Options

Parameter Function

Environment variables from files (Docker secrets)

You can set any environment variable from a file by using a special prepend FILE__.

As an example:

-e FILE__MYVAR=/run/secrets/mysecretvariable

Will set the environment variable MYVAR based on the contents of the /run/secrets/mysecretvariable file.

Umask for running applications

For all of our images we provide the ability to override the default umask settings for services started within the containers using the optional -e UMASK=022 setting. Keep in mind umask is not chmod it subtracts from permissions based on it's value it does not add. Please read up here before asking for support.

User / Group Identifiers

When using volumes (-v flags), permissions issues can arise between the host OS and the container, we avoid this issue by allowing you to specify the user PUID and group PGID.

Ensure any volume directories on the host are owned by the same user you specify and any permissions issues will vanish like magic.

In this instance PUID=1000 and PGID=1000, to find yours use id your_user as below:

id your_user

Example output:

uid=1000(your_user) gid=1000(your_user) groups=1000(your_user)

Docker Mods

Docker Mods Docker Universal Mods

We publish various Docker Mods to enable additional functionality within the containers. The list of Mods available for this image (if any) as well as universal mods that can be applied to any one of our images can be accessed via the dynamic badges above.

Support Info

  • Shell access whilst the container is running:

    docker exec -it librespeed /bin/bash
  • To monitor the logs of the container in realtime:

    docker logs -f librespeed
  • Container version number:

    docker inspect -f '{{ index .Config.Labels "build_version" }}' librespeed
  • Image version number:

    docker inspect -f '{{ index .Config.Labels "build_version" }}'

Updating Info

Most of our images are static, versioned, and require an image update and container recreation to update the app inside. With some exceptions (noted in the relevant, we do not recommend or support updating apps inside the container. Please consult the Application Setup section above to see if it is recommended for the image.

Below are the instructions for updating containers:

Via Docker Compose

  • Update images:

    • All images:

      docker-compose pull
    • Single image:

      docker-compose pull librespeed
  • Update containers:

    • All containers:

      docker-compose up -d
    • Single container:

      docker-compose up -d librespeed
  • You can also remove the old dangling images:

    docker image prune

Via Docker Run

  • Update the image:

    docker pull
  • Stop the running container:

    docker stop librespeed
  • Delete the container:

    docker rm librespeed
  • Recreate a new container with the same docker run parameters as instructed above (if mapped correctly to a host folder, your /config folder and settings will be preserved)

  • You can also remove the old dangling images:

    docker image prune

Image Update Notifications - Diun (Docker Image Update Notifier)


We recommend Diun for update notifications. Other tools that automatically update containers unattended are not recommended or supported.

Building locally

If you want to make local modifications to these images for development purposes or just to customize the logic:

git clone
cd docker-librespeed
docker build \
  --no-cache \
  --pull \
  -t .

The ARM variants can be built on x86_64 hardware using multiarch/qemu-user-static

docker run --rm --privileged multiarch/qemu-user-static:register --reset

Once registered you can define the dockerfile to use with -f Dockerfile.aarch64.


  • 23.12.23: - Rebase to Alpine 3.19 with php 8.3.
  • 06.12.23: - Replace php mysqli with php pdo_pgsql.
  • 25.05.23: - Rebase to Alpine 3.18, deprecate armhf.
  • 14.05.23: - Added support for
  • 20.01.23: - Rebase to alpine 3.17 with php8.1.
  • 20.08.22: - Rebasing to alpine 3.15 with php8. Restructure nginx configs (see changes announcement).
  • 01.03.21: - Fix up database settings. Make sure index.html is recreated.
  • 28.02.21: - Added php7-ctype.
  • 23.01.21: - Rebasing to alpine 3.13.
  • 01.06.20: - Rebasing to alpine 3.12.
  • 29.04.20: - Add donation links for LibreSpeed to Github sponsor button and container log.
  • 09.01.20: - Initial Release.