Riff

Riff a post or a reply. A free Chrome extension that writes your posts, replies and DMs on X, LinkedIn, Facebook & Instagram, on your device. You press send.

[Riff @riffreplyapp]

Here is how to set up a brand voice in Riff: https://t.co/8aqCL8QLal

[Riff @riffreplyapp]

Do you post for a company page or a client too?

Riff keeps a brand voice for each one. Add the name, how it sounds, and one or two of its best posts.

Then switch between you and the brand in one click. The next draft sounds like them, not you.

[Zima @MichaelZima]

October 2026 Builder Update

🛠️ Why I built Riff
I started posting more on X in September. By week one I was drowning in outreach, same as in social selling.

Long pitches.

Slow replies.

No leverage.

So I built the tool I needed.

🚀 What happened
In about 4 hours I shipped the first Riff and submitted it to the Chrome Web Store. Local AI in desktop Chrome. Free. No account. Drafts replies, posts, and DMs. I still press send.

Since then I have been collecting feedback from dozens of people, writing the help guide, and growth hacking SEO on a brand-new domain.

📊 Numbers
• ~1,300 new X followers in October
• 1,621 total on @MichaelZima (started growing hard in September)
• Riff ~3 weeks old
• First version shipped to the Chrome Web Store in ~4 hours
• Ahrefs DA 31/100 on https://t.co/CL6lbo9G6b
• 99 directory listings live
• Feedback from dozens of early users

🎯 Takeaway
Free, no-account tools are the marketing. Riff scales the writing. You keep the judgment.

[findalternate @findalternate]

@stellalabsAI 4/25 - Riff @riffreplyapp

A free Chrome extension that writes fresh replies and DMs for X, LinkedIn, Facebook and Instagram using Gemini Nano. Everything runs on your computer — no account, API key or server.

🔗 https://t.co/WZxh6kqLQw

[launched.tools @launchedtools]

Tool of the Day: @riffreplyapp

Replying to every post eats your whole day?

Riff drafts replies to posts and DMs right in Chrome.

Best for: Anyone replying all day
Standout: Runs on your computer, no account

Reviewed ✓ and listed on our website ↓

[Bobby @_asius]

One of the tool, I strongly recommend people to use.

[Riff @riffreplyapp]

@mscode07 @MichaelZima This is happens when reply guy locks in.

[Riff @riffreplyapp]

We are working on a new UI update in 0.5.0

Feature requests:
-Reddit
-Multiple voice profiles
-More brand profiles
-Cleaner 1st time onboarding with Google Nano
-New onboarding experience

[Riff @riffreplyapp]

Five colleagues just asked me where the new slides were, each in a different language. Riff now works in
@Slack and @MicrosoftTeams. Send your message and see.

[Riff @riffreplyapp]

Email slip-ups add up. Riff checks your drafts to help you rephrase. Avoid repeating yourself.

[Riff @riffreplyapp]

We broke open a Riff today. Thank you for the support. We have more cooking!

[Riff @riffreplyapp]

@hmlp331 Thank you. Your promotional theory is correct. Keep going. -Mike

[Haemin | Freelance Developer @hmlp331]

@riffreplyapp Rough notes in, posts out. I got a bit carried away and made you a quick promo 👀 It's yours if you want it, and I can do a longer version too

[Riff @riffreplyapp]

@hmlp331 감자 소년

[Riff @riffreplyapp]

Riff is live on Product Hunt today. Drop in rough notes and get posts, replies and DMs for X, LinkedIn, Facebook and Instagram. Local AI in Chrome. No account. Free.
https://t.co/JyHy6nuytU

[Riff @riffreplyapp]

@VantixAgency 📝

[Riff @riffreplyapp]

@AskZaratech 🥰

[Riff @riffreplyapp]

@SheralTech 🤓

[Riff @riffreplyapp]

@EllaTech0 🧑‍🍳

[Riff @riffreplyapp]

@artists_voyage We have room in the rocket. Get in!

[Riff @riffreplyapp]

@aaliya_va Fun fact about Fiverr and the founder. Mike Zima was the only seller featured in the Fiverr IPO pitch deck. ❤️