h!dd3n is a Chrome extension developed by õÕ. It allows users to convey messages without being noticed by encoding them using Zero Width Characters (ZWSP). These special Unicode characters do not occupy any visible space and cannot be highlighted, making them perfect for hiding messages.

With h!dd3n, you can encode any message using ZWSP and send it to anyone without anyone else being able to read it. You can also receive encoded messages from other h!dd3n users and decrypt them right in your browser. The decoded messages can be inserted almost anywhere without being seen.

In addition, h!dd3n provides an option to convert the message to l33t sp34k, making it noticeable for the recipient to decode. The extension features various buttons that allow users to encode and decode messages, copy encoded messages to the clipboard, paste encoded messages from the clipboard, and clear the encoded message field.

h!dd3n is an easy-to-use extension with an intuitive interface. It stores messages locally and does not share them with any third-party services. The encoding keys are also stored locally on your device, ensuring privacy and security.