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Case Study

JAKALA: Absolute confidence in visual regression testing

"It gives us absolute confidence when approving the final release candidate, ensuring that there are no visual issues and bugs for the end users."

Christina Dimkova
Christina Dimkova
Lead QA at JAKALA

The challenge

JAKALA (formerly FFW agency) operates across France, UK, and the Nordics, building and maintaining CMS platforms for clients worldwide. Their QA team is responsible for delivering new features and designs each sprint — and ensuring no visual issues reach end users.

Before tools like Diffy existed, testing was done entirely by hand across multiple devices — iOS, Android, and Windows — both before and after every code deployment. Each round of testing had to be repeated in full to validate that changes hadn’t broken anything. With complex projects spanning multiple front-end teams and dozens of UI components, this was incredibly time-consuming.

Solution

Today, Christina’s team combines modern emulation tools with Diffy to catch visual changes quickly and efficiently. Diffy is used from the very start of each project — as soon as test environments are ready — and is a core part of both sanity testing and visual regression testing each sprint.

For one of their flagship projects — a platform with three separate front-end teams, seven content types, and 25 UI components — Diffy ensures that everything looks correct before and after every release and deployment. It has become a critical checkpoint in their pre-production checklist.

Results

  • Visual confidence before every production release
  • Efficient testing across complex multi-team projects
  • Significant reduction in manual cross-device testing effort