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Preview of Mocklet

Mocklet by Nikolai

Record API traffic in Firefox DevTools or import HAR files, validate endpoints, tune matching rules, and create hosted mocks on Mocklet.

Available on Firefox for Android™
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Capture real traffic so you can mock anything you want.Extended HAR validation out of the boxInstant mock creationYour mocks are always within reach
About this extension
Mocklet adds a panel to Firefox DevTools for turning recorded network traffic or imported HAR files into hosted HTTP mocks.

Record requests directly in DevTools or upload a HAR file, validate captured endpoints before deployment, tune matching rules for query parameters, headers, and body fields,
filter entries by resource type, and create hosted mock servers with a configurable TTL. You can also review and delete mocks from the panel. A Mocklet sign-in is required.
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Permissions and data

Required permissions:

  • Extend developer tools to access your data in open tabs
  • Access your data for mocklet.io

Optional permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
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More information
Version
0.1.0
Size
465.43 KB
Last updated
8 days ago (Mar 13, 2026)
Version History
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