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GA·TestingApr 2026
Browser Performance Tools
Profile Core Web Vitals, CPU, memory, and long tasks.
Browser Performance Tools is Lovable's Testing feature that profile Core Web Vitals, CPU, memory, and long tasks.
Extends Browser Testing with performance profiling: Core Web Vitals (LCP/CLS/INP), CPU usage, long tasks, and memory.
Capabilities
- Core Web Vitals capture
- CPU and long-task profiling
- Memory inspection
- Per-route performance baselines
Use cases
- Catch a regression that tanks LCP
- Investigate a memory leak in a dashboard
Frequently asked
What is Browser Performance Tools?
Browser Performance Tools is Lovable's Testing feature that profile Core Web Vitals, CPU, memory, and long tasks. Extends Browser Testing with performance profiling: Core Web Vitals (LCP/CLS/INP), CPU usage, long tasks, and memory.
Is Browser Performance Tools GA or in beta?
Browser Performance Tools is generally available (GA) on Lovable.
What Lovable plan includes Browser Performance Tools?
Browser Performance Tools is available on all Lovable plans.
When did Browser Performance Tools launch?
Browser Performance Tools launched on Apr 2, 2026.