TabPulse

Record approximate CPU usage and JS heap memory usage for the active tab.

Users0

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Manifest versionV3

7-day growth0

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Preview

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Version1.0.0

ManifestV3

Size1.18MiB

Languages1English (United Kingdom)

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Overview

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TabPulse helps you monitor how much load a webpage is putting on your browser by recording approximate CPU activity and JavaScript heap memory usage for the currently active tab. It’s useful for troubleshooting slow sites, catching performance regressions, and understanding which pages are heavier during real browsing.

## Key features

- Live recording for the active tab

- Sampling interval control (250ms–2s)

- CPU% (approximate) based on DevTools performance task time deltas

- JS heap memory: heap used and heap total (MB)

Reviews