Observability & Monitoring

thetool

Capture CPU and memory profiles in Chrome DevTools format.

Status
UnmaintainedNo commits in 2599 days.
Last checked
Aging · Sep 4, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

Thetool captures detailed performance metrics for your application and exports them in a format compatible with Chrome DevTools, aiding developers in optimizing their applications.

Thetool stands out by providing a straightforward way to capture and analyze CPU and memory profiles in a format that is directly compatible with Chrome DevTools, making it easier for developers to optimize their applications.

When it fits — and when it doesn’t

A good fit for

  • Developers who need to optimize their web application's CPU and memory usage

  • Teams working on performance-critical applications that require detailed profiling data

Look elsewhere if

  • Projects requiring real-time monitoring of application performance metrics

  • Applications where the tool needs to be integrated into a cloud-based monitoring system

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Steep learning curve for non-JavaScript developers

    The tool heavily relies on JavaScript and Node.js ecosystem, which may be unfamiliar to developers from other backgrounds.

  2. 02

    Limited documentation and examples

    Official documentation lacks detailed guides for advanced use cases and troubleshooting common issues.

  3. 03

    Performance overhead in production environments

    Running thetool in a production environment can introduce noticeable performance degradation due to its data collection mechanisms.

What it does well

  • Captures CPU and memory profiles

  • Exports data in Chrome DevTools format

  • Aids in application performance optimization

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up thetool

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →