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A friendly Finnish hacker. I am technology consultant, open source advocator and entrepreneur. My expertise areas cover HTML5, Python, Plone, Javascript, WebGL,UNIX and mobile web. Mikko likes sushi, Angry Birds and dislikes winter. Mikko is a DZone MVB and is not an employee of DZone and has posted 43 posts at DZone. You can read more from them at their website. View Full User Profile

Obfuscate.js: clean sensitive information out from web page screenshots

01.16.2013
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Obfuscate.js is a Javascript console tool which obfuscates the text on the web page hiding sensitive information. The purpose of this tool is to be able to make shareable screenshots for collaborative debugging, examples, demos and so on. You no longer need to manually blur parts of the screen shot in Photoshop, GIMP, etc. image manipulation program, saving your precious time and making sharing screenshots easier.

  • You invoke Obfuscate.js script from the Javascript console of your web browser
  • Obfuscate.js obfuscates the whole page or parts of it
  • Take a screenshot
  • Post to a public forum, blog or other media

I hacked it together in a day for my own purposes.

1. Demostration

Obfuscate.js can walk through the whole page (<body>) or arbitary page bits chosen by CSS selectors.

Open the page with sensitive information in your web browser.

Open Javascript console. Copy-paste line of text from obfuscate.min.js to your Javascript console.

https://github.com/miohtama/obfuscate.js/raw/master/media/console.png

In this point you have the orignal page still with sensitive information

https://github.com/miohtama/obfuscate.js/raw/master/media/sensitive.png

After this you can obfuscate a part of a page by writing the command in the console targeting a specific CSS selector:

obfuscate("#waffle-grid-container"); // Obfuscate contents of Google Spreadsheet

https://github.com/miohtama/obfuscate.js/raw/master/media/part.png

Or simply obfuscate all text the whole page:

obfuscate(); // Obfuscate all the text on the page

https://raw.github.com/miohtama/obfuscate.js/master/media/full.png

2. More information

Go to Obfuscate.js Github project page.

Published at DZone with permission of Mikko Ohtamaa, author and DZone MVB. (source)

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