Cryptogram is a free browser-based tool that allows you to protect your privacy when sharing photos online. By password-protecting photos with Cryptogram, you will have better control over who can see photo content.
Cryptogram lets you input JPEG images and produce images that look like random noise. The original images can be restored if given the correct password.
The encoding format is designed to be robust to the levels of JPEG compression seen on social networking websites, such as Facebook or Google Plus.
You will be able to upload Cryptogram'd images on the web and the original image can be decoding using the Cryptogram browser extension and right password.