Kindlebility is now Tinderizer
- Kindlebility sends articles on the web to your Kindle.
- It needs your Kindle email address (@free.kindle.com addresses are fine).
- I don’t store your Kindle address or use it for anything else.
- Use Kindlebility to make a bookmarklet.
- Add email@example.com to your Kindle Approved Email List.
- Click the bookmarklet on a page to send the article to your Kindle.
I’ve been meaning to write some more about Kindlebility, since I’ve been making improvements to it, people are using it, and I’m getting feedback, so here it goes.
Kindlebility is an application I wrote after I got my Kindle. You give it your Kindle email address (free or regular), authorize the email it uses, and you get a bookmark that you can click on pretty much any page, and it will do some magic (described later) to send the page to your Kindle for easy reading.
I was frustrated that I could send things to it to get converted and look pretty on the device, but there were always too many steps. Run this, save that, convert here, email, blah, blah, blah. I’m a programmer damnit! I can automate this.
I put it up online because it’s not the most expensive thing in the world to run, and I figured other people would find it useful as well. You probably don’t think you need this until you use it a few times, then the value really shows.
To communicate with the server, I use the socket.io library, since it talks to node with no problem, I get cross browser support, and it makes doing progress updates on the client side super simple.
I don’t need to store anything on the server side, so I don’t keep your Kindle email for anything. You can also just remove firstname.lastname@example.org from your Kindle Approved Email List and I can’t send anything to it, so you don’t have to worry about spam.
The server downloads the page, runs Readability on the content, and writes the new HTML out to a file. It kicks off a process to run wkhtmltopdf on the HTML file, which spits out a pretty decent looking PDF. It then reads that PDF, and POSTs it to Postmark (they have a REST API for email; awesome!) with “convert” as the subject. Amazon converts it for easier reading (allowing you to change font sizes, etc), and it gets sent to your Kindle, either over 3G or Wifi, depending on which Kindle you have and which email (free or regular) you put in the box.
The Source Code
If you don’t believe me on any of these points, feel free to check out the source code, available on Github.
That’s it! Go ahead and try it out. I’ll be working on it more, making further improvements, fixing bugs, and whatever else. If you have suggestions, comments, or if it’s not working quite right, please let me know. If you love it so much, there’s a donate button at the bottom of the page.