Insert HTML by Designmodo is a Chrome extension that allows users to easily insert custom HTML format into Gmail. This extension adds an icon inside the Gmail Compose text area, and when clicked, it opens a modal popup where you can paste your HTML script. This feature is particularly useful for users who frequently need to insert custom HTML formatting or code snippets into their emails.

One of the main advantages of Insert HTML by Designmodo is its simplicity and ease of use. With just a few clicks, users can quickly insert their desired HTML format into their Gmail messages. The extension does not collect any privacy data, ensuring the privacy and security of user information.

Overall, Insert HTML by Designmodo is a valuable tool for Gmail users who want to enhance their emails with custom HTML formatting. Its intuitive interface and privacy-focused approach make it a reliable choice for those in need of this functionality.