Prompt Later

A small Chrome extension that sends messages into your AI chats later, either once or on a schedule.

About it

It works inside the chat site you're already logged in to (ChatGPT and Claude work; others are experimental), so there's no API key. There's no account or server either: everything stays on your device, encrypted. It's on the Chrome Web Store.

I made it because I needed it, and only found out after I'd shipped it that someone else had already built something similar. It's a small side project, but it still does exactly what I wanted it to.