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API Monitor DevTools

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ExtensionDeveloper Tools143 users
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Overview

Inspect scheduled timeouts, animation frames, idle callbacks, eval invocations, media, workers, scheduler API

This extension is aimed at web developers who manage medium to large-scale architecture web applications, wanting to see how the clock is ticking. Source code, specification and examples are at https://github.com/zendive/browser-api-monitor [MIT License] List of monitored native APIs: - eval (by default off, refer to README.md) - setTimeout - clearTimeout - setInterval - clearInterval - requestAnimationFrame - cancelAnimationFrame - requestIdleCallback - cancelIdleCallback - scheduler - postTask - yield - Worker - constructor - terminate - onmessage - onerror - postMessage - addEventListener - removeEventListener - SharedWorker - constructor - onerror - port.start - port.close - port.postMessage - port.addEventListener - port.removeEventListener

Details

  • Version
    1.6.0
  • Updated
    June 10, 2026
  • Offered by
    Alexander Block
  • Size
    117KiB
  • Languages
    English
  • Developer
    Email
    u2o7@proton.me
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization
The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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