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Happo's new MCP server lets your AI agent review visual diffs the way you wish you had time to: structurally, with a written rationale, and with flake caught along the way. Because the agent already has your code change in context, it knows what UI changes to expect. Happo brings the diffs.
After ten years and three versions, we shipped a new Happo logo. Here's the story behind it: the rushed 2016 original, the smiling hippo that stuck, and a quiet typographic detail in the new wordmark that almost nobody will notice — and why caring about that kind of detail is exactly how we think about building Happo.
Happo coverage often stalls when teams worry about snapshot bills growing with their component count. Happo's new `--only` flag renders only the stories affected by a PR — dropping our own builds by 40% — so you can keep adding coverage without the cost anxiety.
When a major social media platform's in-house Android snapshot testing hit scaling limits with hundreds of developers, Happo built a Gradle plugin bridge. It preserved their existing Roborazzi setup while offloading storage, diffing, and reporting — showing that build vs. buy isn't always binary.
Screenshot testing is well-established on the web, but mobile developers often face different challenges: bloated repositories, slow builds, and scaling pain from storing PNGs directly in the repo. This interview with Henric explores how Happo solved these problems for one large social media platform.