# JS Analyzer

> Scan JavaScript files for API endpoints and credentials.

Canonical page: [https://chrome-stats.com/d/js-analyzer](https://chrome-stats.com/d/js-analyzer)

## Overview

- **ID:** `js-analyzer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Faxcel
- **Category:** other
- **Daily users:** 43
- **Weekly downloads:** 4
- **Version:** 1.0
- **Last updated:** 2025-07-05
- **First published:** 2025-07-02
- **Size:** 149 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/js-analyzer/)

## Description

JS Analyzer is a Firefox extension designed to assist developers, security researchers, and anyone interested in analyzing JavaScript files directly within their browser. It automatically scans the JavaScript content on your active webpage to identify potential API keys, sensitive credentials like usernames and passwords, and URL endpoint patterns that might reveal internal API structures. By providing immediate visibility into exposed JavaScript information, JS Analyzer enhances security awareness and facilitates quick identification of crucial data that might have been unintentionally exposed. Its clean and organized pop-up interface displays findings in easily digestible categories: API, Credentials, and Endpoints/Misc, ensuring you can rapidly review and act on discovered information. It's an ideal tool for web security audits, reverse engineering, or simply understanding how web applications interact with backend services.

## Rankings

- #17,449 — Overall
- #130 — analyzer
- #190 — analyze

## Permissions and access

### Permissions

- `scripting`
- `activeTab`

### Host permissions

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [Jsmon Security Analyzer — Web Security Inspector](https://chrome-stats.com/d/jsmon-extension) — 32 users
- [JS Recon Buddy](https://chrome-stats.com/d/js-recon-buddy) — 170 users, 5.00 / 5
- [Endpoint Security Checker](https://chrome-stats.com/d/endpoint-security-checker) — 2 users
- [JS Deep Scraper Pro](https://chrome-stats.com/d/js-deep-scraper-pro) — 93 users, 5.00 / 5
- [Jsmon](https://chrome-stats.com/d/jsmon) — 5 users
- [SecretSifter: Credentials & Secrets Scanner](https://chrome-stats.com/d/secretsifter-extension) — 3 users
- [JS Extractor](https://chrome-stats.com/d/js-extractor) — 33 users, 5.00 / 5
- [Security Pattern Scanner](https://chrome-stats.com/d/security-pattern-scanner) — 1 users
- [Secret Scanner](https://chrome-stats.com/d/secret_scanner) — 37 users
- [KeyFinder](https://chrome-stats.com/d/keyfinder-original) — 17 users
- [YetAnotherBrowserExtension](https://chrome-stats.com/d/yetanotherbrowserextension) — 2 users
- [Secret Scanner](https://chrome-stats.com/d/secretscanner) — 35 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/js-analyzer)