Instagram Ctrl+Enter Submit is a free Chrome extension designed to improve the commenting experience on Instagram. This tool allows users to submit comments using the Ctrl+Enter key combination, mirroring the functionality found in various messaging applications. It effectively prevents accidental submissions while composing multi-line comments, thus enhancing user interaction with the platform.

The extension is compatible with both Japanese and English user interfaces and supports Instagram's web version. It works seamlessly with textarea and contenteditable elements, ensuring a smooth experience when typing comments. Importantly, this tool prioritizes user privacy by not collecting data or communicating with external servers, focusing solely on enhancing the Instagram commenting function.