Design Better Nate Koechly and Matthew Darby: YouTube's UX Director and Director of PM on redesigning one of the world's most-used apps
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Feb 12, 2026 Nate Koechly, YouTube UX Director modernizing the app with research-driven design, and Matthew Darby, Director of Product Management coordinating product strategy and measurement. They discuss a four-year redesign with paired visual and quality-of-life updates. They explain predictive measurement, balancing metrics with perception, refining the player, algorithm trade-offs, and giving viewers more control through language and personalization.
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Design Bundles Validated By Predictive Measurement
- Nate Koechly and Matthew Darby ran four annual redesign bundles to modernize YouTube and paired visual updates with quality-of-life features.
- They used a predictive measurement score and post-launch confirmation to validate perceived modernity improvements.
Bundle Visual Changes With Value Features
- Pair visual design updates with clear functional value so users see meaningful improvements.
- Ship quality-of-life features like comment threading or video controls alongside branding changes.
Quantifying Subjective Design With UXR
- YouTube developed a sophisticated UXR methodology to measure subjective qualities like 'modern' before building changes.
- They iterate on designs and run holdbacks after launch to convince the organization with rigorous viewer-based evidence.