Software⏱️ 2 min read📅 2026-05-31

How to Fix: Node.js throws "btoa is not defined" error

The btoa-atob package was installed correctly, but the issue persists. Check if there are any conflicts with other packages or modules.

Quick Answer: Check for conflicts with other packages or modules that might be overriding the btoa-atob functions.

The "btoa is not defined" error in Node.js occurs when the btoa-atob package is installed incorrectly or not properly linked to your project. This can be due to various reasons, such as incorrect installation, missing dependencies, or conflicts with other packages.

⚠️ Common Causes

  • Incorrect installation of btoa-atob package
  • Missing dependencies in the project
  • Conflicts with other packages

🚀 How to Resolve This Issue

Method 1: Check Package Installation

  1. Step 1: Run the command `npm ls btoa-atob` to check if the package is installed correctly and linked to your project.

Method 2: Check Dependencies

  1. Step 1: Run the command `npm ls` to check for any missing dependencies in your project.

✨ Wrapping Up

By following these steps, you should be able to resolve the "btoa is not defined" error in Node.js and get your application up and running smoothly.

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