Riff

Riff is a free Chrome extension that drafts replies, posts and DMs on X, LinkedIn, Facebook, Instagram and more. It runs on-device with Gemini Nano, so nothing you write leaves your computer. There is no account to create and no API key to manage. Riff works in English, Spanish, German and French. It is built for people who write on social media every day and want a quick first draft they can edit, without sending their text to a cloud service. Riff is made by Michael Zima, founder of Zima Media OÜ, a bootstrapped company based in Tallinn, Estonia. Riff is free to use and is available from the Chrome Web Store.