Add to Goodreads from Amazon.com book page bookmarklet

goodreads-bookmarklet.js

javascript: var asin_elements, asin;asin_elements = document.getElementsByName('ASIN'); if (asin_elements.length == 0) { asin_elements = document.getElementsByName('ASIN.0'); };if (asin_elements.length == 0) { alert('Sorry, this doesn\'t appear to be an Amazon book page.'); }else {  asin = asin_elements[0].value;  if (asin.match(/\D/) === null) { var x = window.open('http://www.goodreads.com/review/isbn/'+ asin, 'add_review'); } else { var x = window.open('https://www.goodreads.com/search?q='+ asin); } x.focus();}

I've updated this today to workaround a limitation in Goodreads. Recently (AFAICT), the bookmarklet stopped working for products that had an ASIN (an Amazon identifier) instead of an ISBN, because of the way Goodreads URL structure worked. So, the old bookmarklet would work for products with an ISBN, but not for products with an ASIN (Amazon Standard Identification Number), which in my limited research seems to be Kindle books.

The fix I've implemented follows the following logic:

• if the ASIN field in the page (in the HTML it is called ASIN whether it is an ASIN or ISBN) is all digits, it is an ISBN and should go direct to the book page
• otherwise if there are letters in the value, it must be an ASIN, and as far as I can tell, the best that we can do on Goodreads is to direct the user to the search page (with the search field filled with the ASIN) as Randy suggested.

Install the bookmark as instructed in previous comments.

Thank you very much!!!!

Thank you very much, I much appreciate it for making this public!

Yet, would you be able to make a similar one for LibraryThing as well (https://www.librarything.com/)? I want to add my kindle library title to LibraryThing, tried changing the search address but it doesn't work this way.

@csababorzasi Thanks. I don't currently have time to create one for LibraryThing, as I don't use it so would have to get familiar with it, but I imagine it would have a similar method for finding books, so it should be relatively easy to modify the script. Let me know how you go.

Hi @lightningdb, finally I was able to do it and it works fine, see code below. I just changed the links, that's it. First I used the links reverse that's why I didn't get it. Thanks again for making the code available, it's a great help!

javascript: var asin_elements, asin;
asin_elements = document.getElementsByName('ASIN');
if (asin_elements.length == 0) {
asin_elements = document.getElementsByName('ASIN.0');
};
if (asin_elements.length == 0) {
alert('Sorry, this doesn't appear to be an Amazon book page.');
} else {
asin = asin_elements[0].value;
if (asin.match(/\D/) === null) {
var x = window.open('https://www.librarything.com/addbooks' + asin, 'add_review');
} else {
var x = window.open('https://www.librarything.com/addbooks?search=' + asin);
}
x.focus();
}

Terrific! Glad you were able to make something work :)

This wasn't working for me with Kindle books kept loading goodreads and saying Page Unavailable An unexpected error occurred. We will investigate this problem as soon as possible — please check back soon! So I changed the following URLs and seems to be working now. Tested on Kindle, Paperback and Hardback and goodreads loads each time.

Changed:

var x = window.open('https://www.goodreads.com/search?q='+ asin);

To:

var x = window.open('https://www.goodreads.com/book/isbn?isbn='+ asin);

Working Bookmarklet:

javascript: var asin_elements, asin;asin_elements = document.getElementsByName('ASIN'); if (asin_elements.length == 0) { asin_elements = document.getElementsByName('ASIN.0'); };if (asin_elements.length == 0) { alert('Sorry, this doesn\'t appear to be an Amazon book page.'); }else {  asin = asin_elements[0].value;  if (asin.match(/\D/) === null) { var x = window.open('http://www.goodreads.com/review/isbn/'+ asin, 'add_review'); } else { var x = window.open('https://www.goodreads.com/book/isbn?isbn='+ asin); } x.focus();}

Awesome, thanks @SirGryphin