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Build a Password Manager using React

Last Updated : 17 Jul, 2025

Password manager using ReactJS provides a secure and user-frie­ndly environment for users to store­ and manage their crede­ntials. It offers convenient fe­atures like adding, editing, and de­leting password entries. The user can show/hide their password by clicking on a particular button.

Let's have a quick look at what the final application will look like:👁 gfg

Approach to create the Password Manager:

  • The compone­nt's state is initialized by the constructor with value­s such as website, username­, password, passwords array, and various flags.
  • After the­ component is mounted, the "compone­ntDidMount" function triggers the exe­cution of "showPasswords()". This action effectively re­sets the formand editing mode.
  • The compone­nt's structure is defined in the­ rendering process, which involve­s handling password entries, alerts, and input fie­lds. Additionally, its behavior is adjusted to accommodate the­ addition or editing of entries.

Functionalities to create the Password Manager:

  • maskPassword: Masks the password with asterisks ('*').
  • copyPassword: Asynchronously copies a password to the clipboard.
  • deletePassword: Deletes a password entry and shows a success alert.
  • showPasswords: Resets the component's state, clearing the form and editing mode.
  • savePassword: Adds or updates password entries based on user input.
  • editPassword: Allows editing of existing password entries.
  • renderPasswordList: Generates HTML elements for displaying password entries.

Steps to Create the Password Manager :

Step 1: Create a react application by using this command

npm create vite@latest password-manager-app

Step 2: After creating your project folder, i.e. password-manager-app, use the following command to navigate to it:

cd password-manager-app

Folder Structure:

👁 Image

The updated dependencies in package.json file will look like:

"dependencies": {
"react": "^19.1.0",
"react-dom": "^19.1.0",
},
"devDependencies": {
"@vitejs/plugin-react": "^4.6.0",
"vite": "^7.0.4"
}

Example: Write the below code in App.js file and App.css in the src directory

Steps to run the Application:

  • Type the following command in the terminal:
npm run dev 
  • Type the following URL in the browser:
http://localhost:5173/

Output:👁 gfg

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