LeakNinja — A VSCode Extension to Prevent Secret Leaks in Your Code

Ninja — Tue, 16 Sep 2025 17:59:24 +0000

The Problem

We’ve all made the mistake:
pushing a .env file or an API key to GitHub by accident.

The result:

🔑 Exposed secrets

💸 Financial risks (e.g. hijacked cloud keys)

😱 Damaged reputation

With the rise of SaaS tools and APIs, secret leaks have become a nightmare for developers.

The Solution: LeakNinja 🥷

LeakNinja is a VSCode extension that automatically detects and blocks sensitive secrets before you even commit.

Features

⚡ Automatic scan on every save

🚧 Warning threshold when sensitive data is detected

⛔ Smart blocking threshold to prevent the leak

🛠️ Easy configuration directly in VSCode

**_Example**_

.env

API_KEY=sk-12345...

👉 LeakNinja detects the key and shows a warning directly in your editor.
👉 If the threshold is exceeded, it even prevents the file from being saved/committed.

Installation

The extension is available on the Visual Studio Code Marketplace.

Simply search for: LeakNinja
or install via CLI:

code --install-extension leakninja

Why LeakNinja?

Because a ninja is silent, fast, and protects your code from the shadows 😉

Call to Action

🚀 Download and test LeakNinja

💬 Share your feedback and improvement ideas

🤝 Contributions are welcome on GitHub

Together, let’s make secret leaks a thing of the past.

DEV Community: Ninja

LeakNinja — A VSCode Extension to Prevent Secret Leaks in Your Code

.env