Here’s the video of my talk from PyCon 2015, Make web development awesome with visual diffing tools:

Here are the slides for the talk:

The two tools referenced are:

• dpxdt for generating screenshots
• webdiff for viewing image diffs

I used comparea and dygraphs as sample apps for the demos.

If you enjoyed my talk, you might also enjoy Brett’s talk from a few years ago, The Secret of Safe Continuous Deployment: Perceptual Diffs. It goes into more depth on how screenshots can facilitate rapid deployment.