Work · alternatives · 2026

24 alternatives to Online Security Pro

Security extension for Google Chrome and other browsers

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Online Security Pro launched in 2018; newer entries below may have overtaken it.

1. 1
   PassProtect▲75

   Stop using bad passwords.

   2018 · its alternatives →

2. 2
   Password Checkup by Google▲178

   A Chrome Extension to help resecure hacked accounts

   2019 · chromewebstore.google.com · its alternatives →

3. 3
   SecurityScorecard Chrome Extension▲69

   See the potential security risk for every site you visit

   2022 · securityscorecard.com · its alternatives →

4. 4
   ThreatSlayer▲85

   Free enterprise grade security for your personal browser

   2023 · chromewebstore.google.com · its alternatives →

5. 5
   Web3 Antivirus Extension 2.0▲140

   Bring confidence and security to your Web3 transactions

   2024 · web3antivirus.io · its alternatives →

6. 6
   Web3 Antivirus for Chrome▲184

   Take back your safety in Web3

   2022 · web3antivirus.io · its alternatives →

7. 7
   Uppward Chrome Extension▲109

   Protect yourself from crypto scams and frauds

   2018 · uppward.sentinelprotocol.io · its alternatives →

8. 8
   HTTPS Everywhere▲290

   Chrome extension that encrypts and secures your browser

   2017 · chromewebstore.google.com · its alternatives →

9. 9
   Extension Monitor▲87

   Track browser extension installations / threats in real-time

   2019 · extensionmonitor.com · its alternatives →

10. 10
    Extension Police▲115

    Police your chrome extensions

    2018 · chromewebstore.google.com · its alternatives →

11. 11
    SafeToOpen▲81

    Anti-phishing extension that alerts you of dangerous sites

    2021 · chromewebstore.google.com · its alternatives →

12. 12
    Proofmarked▲154

    Cybersecurity for everyone. Just in time for Black Friday!

    2023 · chromewebstore.google.com · its alternatives →

13. 13
    INDEXED.pro▲169

    Smart, fast, automatic website URL indexing for SEO

    2023 · indexed.pro · its alternatives →

14. 14
    Stingray Security Chrome Extension▲33

    In-browser A.I. protection from online threats - all free

    Nov 2025 · its alternatives →

15. 15
    NFT Guard▲236

    Protect yourself from fake NFTs and crypto scams

    2022 · blog.mozilla.org · its alternatives →

16. 16
    Suspicious Site Reporter▲74

    Report suspicious sites to Google

    2019 · chromewebstore.google.com · its alternatives →

17. 17
    WebSafely Extension▲113

    Instantly know if a site is a scam, right from your browser

    2025 · chromewebstore.google.com · its alternatives →

18. 18
    Datagator▲63

    browser extension that sues online trackers

    2024 · joindatagator.com · its alternatives →

19. 19
    WebWall▲74

    See how websites use your data and block trackers & threats

    2021 · trywebwall.com · its alternatives →

20. 20
    MetaShield▲102

    A chrome extension to keep your ETH & NFTs safe from scams

    2021 · chromewebstore.google.com · its alternatives →

21. 21
    Slid▲119

    Capture knowledge from online videos, courses, and webinars

    2021 · slid.cc · its alternatives →

22. 22
    CyberWise▲101

    Detect phishing, adware and malware on websites

    2023 · chromewebstore.google.com · its alternatives →

23. 23
    AdGuard for iOS Pro 2.0▲102

    Ultimate iOS system-wide ad blocking and privacy protection

    2018 · adguard.com · its alternatives →

24. 24
    Signed Pages▲75

    A browser extension to verify the authenticity of websites

    2018 · github.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →