Lighthouse Before vs After

Upload desktop and mobile JSON reports for before and after. We generate summary cards, per-run charts, and comparison tables.

How to get JSON reports

Upload files

Before Desktop
Drag and drop JSON files or a folder here. You can also pick files or a folder manually.
No files selected.
After Desktop
Drag and drop JSON files or a folder here. You can also pick files or a folder manually.
No files selected.
Before Mobile
Drag and drop JSON files or a folder here. You can also pick files or a folder manually.
No files selected.
After Mobile
Drag and drop JSON files or a folder here. You can also pick files or a folder manually.
No files selected.