Documentation / Installation



You can run using our Docker containers or using NodeJS.


We have Docker images with, Chrome, Firefox and Xvfb. It is super easy to use (Xvfb is started automatically when you start the container). Here’s how to use the container with both Firefox & Chrome (install Docker first).

Mac & Linux

docker run --rm -v "$(pwd)":/ sitespeedio/ -b firefox


C:\Users\Vicky> docker pull sitespeedio/
C:\Users\Vicky> docker run --rm -v ${pwd}:/ sitespeedio/ -b firefox

That will output the data from the run in the current directory. You can read more about running the containers here.

Node JS

Mac & Linux

Prerequisites: Install latest NodeJS LTS (Linux) and make sure you have npm or yarn installed. Also install Chrome/Firefox (you need them to collect metrics).

Make sure you install without sudo using sudo. Checkout Sindre Sorhus guide.


If you prefer npm, just run:

npm install -g


Or with yarn:

yarn global add


We support Windows using Docker. To be able to support running on Windows with NodeJS we need at least one core contributor that can focus on Windows. Are you that one? Please get in touch!