A web crawler to stress test a Bubble.
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Bubble Crunch

A load-testing tool for Bubble. Crawls URLs to put a lot of traffic through a Bubble.


  • Java 11
  • Maven 3

For Ubuntu, you can run:

apt install openjdk-11-jdk maven


To build from source:

mvn -Puberjar clean package

Install Browsers and Web Driver

Before running, you need to install one or both of:

  • Google Chrome and the Chrome web driver for Selenium.
  • Firefox and the Firefox web driver for Selenium.

If you are running a desktop, you can probably just install Chrome or Firefox normally, if you haven’t already.

Install Firefox

apt install firefox

Install Chrome

apt install software-properties-common -y
add-apt-repository ppa:canonical-chromium-builds/stage -y
apt-get update -y
apt install chromium-browser -y

Install Web Drivers:



Look at the files in examples for sample configurations.

Run a simple crawl with default settings:

./bin/crunch.sh -c ./examples/crawl_sites.txt

Same as the above, but uses a full configuration:

./bin/crunch.sh -c ./examples/crawl_config.json