I like the idea of being able to save the blurred areas, having standard sets of these for popular sites (e.g., GitHub API keys, Twilio, AWS, etc.) would be worth paying for.<p>As others have mentioned, I'd like more secure ways to blur the area, e.g., completely blanking it out, or filling with random text and then blurring.<p>Edit: Would also be useful to replace the text instead of blurring, that way viewers could see realistic information without revealing real keys, etc.<p>Edit: Please allow the plus (+) symbol for emails.