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Password Peeper

Introduction

Password Peeper is a simple chrome extension that enables users to have a peep of their forgotten passwords or copy the passwords to clipboard without any effort.

I let browser remember some of my passwords so that it can auto-fill my password during authentication. When I forget my password, I also try to find it in the browser.

I had 2 options

  1. Go the Settings -> Passwords and search for the website domain.
  2. Use developer tool to locate the password input DOM element, copy its JS path, paste the path into console and append .value to the JS path to read the password.

These 2 methods works but is too time consuming.

That's why I decieded to make this Password Peeper chrome extension to make the process seamless. One can simply hover over the password to view its value, show all passwords on a website automatically, or with a keyboard shortcut.

Bookmark Method

Another much simpler solution is bookmark. In Chrome, bookmarks can run JavaScript.

Add the following code to an empty bookmark's url.

javascript: document.querySelectorAll("input[type='password']").forEach((ele) => {
  ele.setAttribute('type', 'text');
});

By clicking on the bookmark, all passwords on a page will be displayed in text. It's already super easy to use.

The extension Password Peeper provides more features, such as,

  1. Auto show passwords when page is loaded
  2. Copy to clipboard on double click
  3. Show password on hover (manually trigger or automatically trigger)

Development

The UI is written with Svelte and Svelte Material UI and TypeScript.

The content and background scripts are located in dist as JavaScript files. TypeScript is not used for them simply because I am lazy and this extension is quite simple.

  • npm i to install the dependencies.
  • npm run dev to run development server,
  • npm run build to build the UI into dist/ui.
  • npm run prepare when a new @smui package is installed to update the theme files.