Dev tools · alternatives · 2026

24 alternatives to JSShield — Malicious JavaScript Detector

Security Tool

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1AI
   An Isomorphic JavaScript Framework Faster Than React▲337

   2015 · jsblocks.com · its alternatives →

2. 2
   Jscrambler▲8

   JavaScript Protection and Webpage Monitoring

   2019 · jscrambler.com · its alternatives →

3. 3
   Owlyshield▲63

   Open source AI-driven antivirus engine written in Rust

   2022 · github.com · its alternatives →

4. 4
   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 →

5. 5
   Jsblocks▲97

   Faster than AngularJS and ReactJS. Better MV-ish Framework.

   2015 · jsblocks.com · its alternatives →

6. 6
   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 →

7. 7AF
   A Face-Detection Library in 200 Lines of JavaScript▲36

   2018 · tkv.io · its alternatives →

8. 8
   Detecting adblock, without JavaScript, by abusing HTTP 103 responses▲108

   Detect adblockers without Javascript by abusing early hints - Mechazawa/103-early-anti-adblock

   2024 · github.com · its alternatives →

9. 9
   How to ensure JavaScript code quality▲83

   DeepScan is a cutting-edge static analysis tool for JavaScript. You can inspect all of your JavaScript code comprehensively.

   2017 · deepscan.io · its alternatives →

10. 10
    An experimental data-flow analysis tool for JavaScript▲95

    Find the origin of any character in the DOM

    2019 · fromjs.com · its alternatives →

11. 11
    Guardscript – Detect any changes made to your JavaScript files▲28

    Guardscript monitors every few minutes any changes made to your Javascript files and sends you a notification with the changes made. You can then detect any malicious modification by analyzing these results.

    2019 · guardscript.com · its alternatives →

12. 12
    Remarkable▲82

    a JavaScript Markdown and Commonmark parser

    2014 · github.com · its alternatives →

13. 13
    Javascript Constable▲67

    Stop data skimming w/ network activity change detection 🕵️

    2019 · fluxguard.com · its alternatives →

14. 14
    JS Analytics Blocker▲66

    Block js libraries such as Segment.io/Mixpanel/KissMetrics

    2014 · chromewebstore.google.com · its alternatives →

15. 15
    KryShield▲2

    Analyze. Detect. Protect.

    Jul 2026 · kryshield.base44.app · its alternatives →

16. 16
    JSProbeX▲8

    Pentesting tool to extract secrets & URLs from JS files

    2024 · github.com · its alternatives →

17. 17
    Javascript obfuscator▲2

    Tool to protect your Javascript source code

    2017 · skillsharelesotho.org · its alternatives →

18. 18
    Code Climate▲63

    Quality & security analysis for RoR and JS.

    2014 · codeclimate.com · its alternatives →

19. 19SO
    ScriptObservatory.org – How much malicious JavaScript goes unnoticed?▲38

    2015 · scriptobservatory.org · its alternatives →

20. 20
    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 →

21. 21
    BrowserTotal: A framework for analyzing browser security posture▲28

    Live extension analysis: Point us at a Chrome/Edge/Firefox extension (store URL or CRX). We spin up a safe sandbox and observe it in real time—permissions use, message passing, storage writes, network calls, remote code loading, and UI injections. Package scanning: Paste an npm/package URL or code. We do quick static + dynamic checks: install/postinstall scripts, obfuscation/eval, exfil endpoints, suspicious APIs, and typosquat/reputation signals. AI explainer: An LLM summarizes the behaviors and risk patterns in plain English (why it’s risky, what to verify,…

    2025 · browsertotal.com · its alternatives →

22. 22
    WebShield.AI▲2

    AI-powered phishing detection for safer browsing

    Jun 2026 · chromewebstore.google.com · its alternatives →

23. 23
    I just released v7 Javalin, a JVM web framework▲6

    Share on X Share on Reddit Hacker News Copy Link

    Feb 2026 · javalin.io · its alternatives →

24. 24
    CyberShield▲7

    Security tools

    2025 · vincenek.github.io · 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 →