---
title: "Discussion on \"Why Environment Variables Exist (.env Files Explained)\" | Hashnode"
description: "Discussion on \"Why Environment Variables Exist (.env Files Explained)\". Stop Hardcoding API keys. It's dangerous, and there is a better way"
url: "https://hashnode.com/posts/why-environment-variables-exist-env-files-explained/694ebf31bda3866843e03528"
---

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# [Why Environment Variables Exist (.env Files Explained)](https://yuusvision.hashnode.dev/why-environment-variables-exist-env-files-explained?utm_source=hashnode&utm_medium=feed)

Stop Hardcoding API keys. It's dangerous, and there is a better way

Dec 26, 2025 · 3 min read · yuusvision.hashnode.dev  
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## Written by

[Yoosuf Ahamed](https://hashnode.com/@CodeByYuus)

@CodeByYuus · Colombo, Sri Lanka

  
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Turning ideas into code and data into insights.

Data enthusiast and software developer exploring web development, machine learning, and tech innovations. I share project insights, coding experiments, and practical approaches to solving real-world problems.

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