PrefabLens

Human-readable diffs for UnityYAML assets in GitHub pull requests

Human-readable diffs for UnityYAML assets — right inside GitHub pull requests. Unity serializes prefabs, scenes, and many other assets as YAML. Reviewing changes to those files on GitHub means scrolling raw text full of fileIDs, GUIDs, and serialization noise. PrefabLens adds a Semantic toggle to each UnityYAML file on the Files changed tab that shows what actually changed: GameObjects, components, and properties, with old and new values side by side. Try it without installing: https://hashiiiii.github.io/PrefabLens/extension.html Features - Semantic view for 26 UnityYAML asset types: .prefab, .unity, .asset, .mat, .anim, .controller, .terrainlayer, .lighting, and more - Inspector-style tree — GameObjects, their components, then properties, with additions, removals, and value changes highlighted - MonoBehaviour script names resolved from GUIDs, so script components show their actual class name instead of a bare GUID - Raw / Semantic toggle per file and globally; your choice is remembered - Sign in with the GitHub device flow straight from the PR page — no passwords, no separate server - Large-file guard: oversized scenes never freeze the tab and render only on an explicit click Privacy - All diff parsing runs locally in your browser via WebAssembly - Your GitHub token stays in local extension storage and is sent only to github.com and api.github.com - No analytics, no tracking, no developer-operated server Privacy policy: https://github.com/hashiiiii/PrefabLens/blob/main/PRIVACY.md Open source PrefabLens is Apache-2.0 licensed. Source, issues, and the CLI and Unity Editor companions live at https://github.com/hashiiiii/PrefabLens