Bootstrap: How do I identify the Bootstrap version?

Question

I want to update Bootstrap on a site, but I don\'t know the installed version.

How can I identify the bootstrap version, with only bootstrap.css and bootstrap.min.js fil

Answer 1

Method 1 - Very Simple

In Package.json - you'll see bootstrap package installed with version mentioned.

"dependencies": {
    // ...
   "bootstrap": "x.x.x"
    // ...
}

Method 2

1. Open node_modules folder and under that
2. Search and open bootstrap folder
3. Now you'll be able to see version number in the following files
   • package.json
   • scss/bootstrap.scss or css/bootstrap.css
   • README.md

Answer 2

You can also check the bootstrap version via the javascript console in the browser:

$.fn.tooltip.Constructor.VERSION // => "3.3.7"

Credit: https://stackoverflow.com/a/43233731/1608226

Posting this here because I always come across this question when I forget to include JavaScript in the search and wind up on this question instead of the one above. If this helps you, be sure to upvote that answer as well.

Note: For older versions of bootstrap (less than 3 or so), you'll proably need to search the page's JavaScript or CSS files for the bootstrap version. Just came across this on an app using bootstrap 2.3.2. In this case, the (current) top answer is likely the correct one, you'll need to search the source code for the bootstrap find what version it uses. (Added 9/18/2020, though was in comment since 8/13/2020)

Answer 3

To check what version you currently have, you can use -v for the command line/console terminal.

bootstrap -v

https://www.npmjs.com/package/bootstrap-cli

Answer 4

The Bootstrap version will be stated at the top of the CSS file. Simply open it and look at the top of the file.

e.g.

/*!
 * Bootstrap v2.3.0
 *
 * Copyright 2012 Twitter, Inc
 * Licensed under the Apache License v2.0
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Designed and built with all the love in the world @twitter by @mdo and @fat.
 */

Answer 5

The easiest would be to locate the bootstrap file (bootstrap.css OR bootstrap.min.css) and read through the docblock, you'll see something like this

Bootstrap v3.3.6 (http://getbootstrap.com)

Answer 6

Open package.json and look under dependencies. You should see:

  "dependencies": {
    ...
    "bootstrap-less": "^3.8.8"
    ...
    }

for angular 5 and over