OptMeowt icon
OptMeowt icon

OptMeowt

 Like

OptMeowt ("Opt Me Out") is a browser extension for sending Do Not Sell signals to websites per the Global Privacy Control draft spec.

OptMeowt screenshot 1

License model

  • FreeOpen Source

Application type

Platforms

  • Mac
  • Windows
  • Linux
  • Google Chrome
  • Firefox
  No rating
0likes
0comments
0news articles

Features

Suggest and vote on features

Properties

  1.  Privacy focused

Features

  1.  Browser extension

OptMeowt News & Activities

Highlights All activities

Recent activities

Show all activities

OptMeowt information

  • Developed by

    privacy-tech-lab
  • Licensing

    Open Source (MIT) and Free product.
  • Written in

  • Alternatives

    53 alternatives listed
  • Supported Languages

    • English

AlternativeTo Categories

Web BrowsersSecurity & Privacy

GitHub repository

  •  181 Stars
  •  18 Forks
  •  1 Open Issues
  •   Updated Jun 5, 2025 
View on GitHub

Our users have written 0 comments and reviews about OptMeowt, and it has gotten 0 likes

OptMeowt was added to AlternativeTo by Paul on Mar 23, 2021 and this page was last updated May 11, 2021.
No comments or reviews, maybe you want to be first?
Post comment/review

What is OptMeowt?

OptMewot sends Do Not Sell signals to all domains a user visits when browsing the web. Such signals must be respected for California consumers per the California Consumer Privacy Act (CCPA), Regs Section 999.315(d). However, many companies respect such signals even when they are sent from outside of California.

OptMeowt currently sends Do Not Sell signals using five methods:

  • A new HTTP Do Not Sell header we are developing in a proposed specification effort at the W3C.
  • The existing DNT header, which is interpreted by some publishers as a Do Not Sell header.
  • The IAB CCPA Compliance Framework for Publishers & Technology Companies, implemented in a first party cookie.
  • Third party cookies of ad networks participating in the DAA's CCPA Opt Out Tool for the Web.
  • Custom headers and cookies used by individual websites maintained and updated in a Do Not Sell list.

Customizing which Sites Receive Do Not Sell Signals Every domain a user visits will be automatically added to a domain list and will receive a Do Not Sell signal by default. However, users can exclude domains that should not receive a Do Not Sell signal. This functionality is available by accessing the domain list from the extension's popup window.