Life & fun · alternatives · 2026

This tool monitors server software for security vulnerabilities and sends alerts when issues are detected. It targets developers and system administrators responsible for maintaining secure infrastructure. The product… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Receive Alerts when your Server's software has Security Vulnerabilities launched in 2017; newer entries below may have overtaken it.

1. 1
   AppCanary – Keep vulnerable software off your servers▲108

   aToday, we’re excited to announce that we’re going to be able to build tools that impact almost every software developer on the planet — we’re joining GitHub.

   2015 · appcanary.com · its alternatives →

2. 2PR
   Patchwork – Real-time notifications for OSS vulnerabilities▲122

   2016 · patchworksecurity.com · its alternatives →

3. 3EY
   Enter your URL and view CVEs affecting your stack over last 6 months▲144

   2019 · secalerts.co · its alternatives →

4. 4NF
   Notifications for security vulnerabilities in your dependencies▲10

   2014 · vuln.pub · its alternatives →

5. 5
   MCP-Shield – Detect security issues in MCP servers▲134

   I noticed the growing security concerns around MCP (https://news.ycombinator.com/item?id=43600192) and built an open source tool that can detect several patterns of tool poisoning attacks, exfiltration channels and cross-origin manipulations. MCP-Shield scans your installed servers (Cursor, Claude Desktop, etc.) and shows what each tool is trying to do at the instruction level, beyond just the API surface. It catches hidden instructions that try to read sensitive files, shadow other tools' behavior, or exfiltrate data. Example of what it detects: - Hidden instructions…

   2025 · github.com · its alternatives →

6. 6VS
   Vulnia – Security email alerts about technologies you use daily▲19

   2015 · vulnia.com · its alternatives →

7. 7
   Exploit Alarm▲151

   Vulnerability intelligence for real-time threat analysis

   2024 · exploitalarm.com · its alternatives →

8. 8
   VulnTracker▲3

   Track your products. We’ll watch the vulnerabilities.

   Dec 2025 · vulntracker.io · its alternatives →

9. 9IA
   Instant alerts for applications in distress▲79

   2016 · opsee.com · its alternatives →

10. 10
    Monitornator▲98

    Server monitoring made simple

    2019 · sumvipvn.net · its alternatives →

11. 11PC
    PatrolServer – Continuous updates of the vurnabilities on your servers▲12

    2015 · patrolserver.com · its alternatives →

12. 12
    Monitor all exploits in wild easily for any CVE/EDB/GHSA or Technology▲17

    World's Largest Exploit Database

    2023 · exploit.observer · its alternatives →

13. 13
    VulnCost for Visual Studio Code▲126

    An open source security scanner for Visual Studio Code

    2020 · snyk.io · its alternatives →

14. 14
    Socket – Secure your JavaScript supply chain▲133

    Excited to share the project I've been working on for the past 7 months! We've seen nearly weekly attacks against the open source software supply chain. I saw the seeds of this trend start in the mid 2015s as an open source maintainer and I've watched it only get worse over the years. I finally decided to try to solve this problem. Socket is taking an entirely new approach to one of the hardest problems in security in a stagnant part of the industry that has historically been obsessed with just reporting on known vulnerabilities. Unlike other scanning tools, Socket actually analyzes the…

    2022 · socket.dev · its alternatives →

15. 15
    Real-time security risks detection for any website or server▲22

    Online automated vulnerability scanner to secure firewalls, servers, web applications, and apis. Try 14 days for free.

    2020 · hostedscan.com · its alternatives →

16. 16
    VulnWatch▲12

    Find Security Flaws — No Code Needed.

    2025 · vulnwatch.netlify.app · its alternatives →

17. 17
    Website Threat Scanner▲10

    A web tool to scan websites for common vulnerabilities

    2025 · webscan.dheerajjha.com · its alternatives →

18. 18SV
    SaaS Vulnerability Scanner for Small Businesses▲17

    2017 · scannersec.com · its alternatives →

19. 19
    Browser-based XSS scanner▲57

    This is a simple single-file python program that can find basic XSS (cross-site scripting) vulnerabilities in a target url. Most XSS discovery tools use a payload refelection strategy in which payloads are injected in url parameters and the GET response is inspected for places where the payload content is reflected. This is a very low precision XSS detection strategy because most reflection does not support execution. This program uses a different approach, and instead opens the target url in a browser, tests alert(...) payloads directly in the browser context, and listens for an alert being…

    2024 · github.com · its alternatives →

20. 20
    Vigilante▲7

    Vulnerability monitoring

    2022 · vigilante.bitmind.es · its alternatives →

21. 21IB
    I built a tool that texts you if your server goes down▲21

    2025 · yourserverisdown.com · its alternatives →

22. 22
    I built a tool that detects bad cases of the Log4j vulnerability▲19

    Free defensive Log4Shell tools. Scan logs for CVE-2021-44228 JNDI exploitation attempts (including obfuscated payloads) and check whether a Log4j version is vulnerable.

    2021 · log4shell.tools · its alternatives →

23. 23EE
    Easy email notifications for major security vulnerabilities.▲14

    2013 · vulnerable.co · its alternatives →

24. 24
    Vulnaly▲7

    Cybersecurity audit and prevention

    2025 · 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 →