Privacy Policy

Last Updated: August 28, 2026

At extract.best, accessible from https://www.extract.best, the privacy of our visitors and the confidentiality of their files are among our main priorities. This Privacy Policy document outlines the types of information collected and recorded by extract.best and how we use it.

1. 100% Client-Side In-Browser Processing & Zero File Uploads

Unlike traditional cloud conversion tools, extract.best operates with a 100% client-side architecture using WebAssembly (WASM) and local memory workers:

  • Files Never Leave Your Device: All compression and archive extraction (ZIP, RAR, 7Z, TAR, GZ, BZ2, XZ, ISO, CBZ, APK) happens entirely inside your browser's isolated local memory sandbox.
  • Zero Server Uploads: There is no server round-trip, no network transmission of your file contents, and no remote file storage.
  • Instant In-Memory Purge: File data resides purely in volatile RAM buffers while your browser tab is open and is instantly released upon closing or refreshing the page.
  • Client-Side AES-256 Decryption: Password decryption executes directly on your local CPU without ever exposing credentials or file payloads across any network.

2. Google AdSense & Advertising Cookies Compliance

Google is one of the third-party vendors operating on extract.best. In full compliance with Google AdSense Publisher Policies, we provide the following required disclosures regarding advertising cookies and tracking technologies:

  • Third-Party Cookie Usage: Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to our website or other websites on the Internet.
  • Personalized Advertising: Google's use of advertising cookies enables it and its partners to serve personalized and non-personalized ads to our users based on their visits to extract.best and/or other sites across the Internet.
  • Opt-Out of Personalized Advertising: Users may opt out of personalized advertising at any time by visiting Google Ads Settings (or www.google.com/settings/ads).
  • Third-Party Opt-Out Portals: Alternatively, users can opt out of third-party vendor advertising cookies by visiting www.aboutads.info (Digital Advertising Alliance) or the Network Advertising Initiative opt-out page at optout.networkadvertising.org. European users may also manage preferences via www.youronlinechoices.eu.
  • Cookie Consent Settings: You can review or adjust your consent choices directly on extract.best at any time by clicking the Cookie Settings link in the footer below.

3. Log Files & Analytics

extract.best follows a standard procedure of using log files. These files log visitors when they visit websites. The information collected includes internet protocol (IP) addresses, browser type, Internet Service Provider (ISP), date and time stamp, referring/exit pages, and possibly the number of clicks. These are not linked to any personally identifiable information. The purpose of the information is for analyzing trends, administering the site, tracking users' movement on the website, and gathering demographic information.

4. GDPR Data Protection Rights (EEA Users)

If you are a resident of the European Economic Area (EEA), you have certain data protection rights under the General Data Protection Regulation (GDPR):

  • The right to access: You have the right to request copies of your personal data.
  • The right to rectification: You have the right to request correction of inaccurate information.
  • The right to erasure: You have the right to request that we erase your personal data under certain conditions.
  • The right to restrict processing: You have the right to request that we restrict processing of your personal data.
  • The right to object to processing: You have the right to object to our processing of your personal data.
  • The right to data portability: You have the right to request transfer of data to another organization.

5. California Consumer Privacy Act (CCPA / CPRA)

Under the CCPA/CPRA, California consumers have the right to:

  • Request that a business disclose the categories and specific pieces of personal data collected about consumers.
  • Request that a business delete any personal data about the consumer collected by the business.
  • Do Not Sell My Personal Information: We do not sell any personal information or file contents to third parties.

6. Children's Privacy (COPPA)

extract.best does not knowingly collect any Personal Identifiable Information from children under the age of 13. If you think that your child provided this kind of information on our website, we strongly encourage you to contact us immediately and we will do our best efforts to promptly remove such information from our records.

7. Contact Information

If you have additional questions or require more information about our Privacy Policy, do not hesitate to contact us at [email protected] or via our About & Contact page.