Caspr: Enforcer
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Install CSP headers on arbitrary websites

Casper Enforcer allows you to install and analyze Content-Security-Policy headers on any website. If you need more advance CSP tools, checkout .

3.7 out of 57 ratings

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Mistah MarkMay 17, 2021

This is great if you do alot of front end development, however it is subscription based. Its around 10$/mo I think it should be 5$/mo.. im cancelling after this month. but great tool

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Stuart LarsenDeveloperApr 12, 2024

Just to clarify, this chrome extension is 100% free. All it does is replace the current CSP on the page. There is a different paid service on that serves as a CSP report-uri which is different. That tool has a subscription cost.

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Shaun MangelsdorfSep 11, 2016

Works well and easy to use 👍

2 out of 2 found this helpful
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Neil MatatallDec 22, 2014

It's helped me set a baseline policy for multiple sites. Sup.

1 person found this review to be helpful


  • Version
  • Updated
    November 5, 2021
  • Offered by
  • Size
  • Languages
    English (United States)
  • Developer
  • 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.


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


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