返信チェッカー for Chatwork is a Chrome extension designed to help users manage their messages effectively within the Chatwork platform. This tool features a 'unanswered badge' that highlights rooms with unread messages, ensuring users do not overlook important replies. When a message is responded to, the badge automatically disappears, providing a clear visual cue for users to follow-up on their communications.

Additionally, the extension includes a pinning feature that allows users to mark rooms where they need to reply later, indicated by an orange badge. This is particularly useful for those who may have initially acknowledged a message but require further time to respond. The extension also offers a 'mention only mode,' filtering notifications to show only messages directed to the user, streamlining the communication process even in busy group chats.