If you've used an AI coding agent for any real work this year, you know how the bill goes. It starts at twenty bucks a month. Then you hit a usage cap halfway through a refactor. Then there's a "pro" tier, then credits, then overage pricing for the good models. For a big company that's a rounding error. For a one-person shop or a small IT business here on the Island, it adds up fast, and it's hard to justify when you're not sure how much you'll use it next month.
So when I came across Freebuff, which bills itself as "the 100% free coding agent, $0 forever, funded by ads," I wanted to look at it properly instead of just scrolling past.
What Freebuff is
Freebuff is an AI coding agent. You point it at a project, tell it what you want, and it reads your code, makes changes, and runs things for you. Same basic idea as the paid agents most developers have tried by now.
The difference is the business model. There's no subscription, no credit card at signup, and no credits to run out of. Ads pay for it. That's the whole trade: you see ads, you don't pay.
What you get
A few things stood out to me.
It runs pretty much everywhere. There are desktop apps for Mac (Apple Silicon and Intel), Windows (64-bit, Arm64, and a build for older PCs), and Linux as a .deb or AppImage on both x86_64 and ARM64. That Linux and older-Windows coverage matters more than people think. Plenty of small offices I support still have a machine or two that the newest tools quietly ignore.
There's a terminal version. If you live in the command line like I do:
npm install -g freebuff
cd your-project
freebuff
That's it. It also runs in the browser if you can't or don't want to install anything.
Cloud threads. You can start a task on your desktop and pick it up on your phone or in a browser later. I like this for the "kick off a change before leaving the office, check on it from the truck" kind of day.
Integrations. It connects to GitHub, Linear, Notion, Stripe, Vercel, Supabase, Sentry, PostHog, Resend, and others. So it can work with your actual issues, deploys, error logs, and payment setup rather than just the files on your disk.
Who this helps
Honestly, the people who'll get the most out of this are the ones who've been priced out or are on the fence:
- Small shops and solo IT folks who write the occasional script, internal tool, or website fix and can't justify another monthly subscription.
- Indie developers and side projects where every recurring cost gets questioned.
- Students and people learning who want to see how an agent works without handing over a card.
- Anyone who wants to try an agent before paying for one. Free is a good way to figure out if this workflow even fits you.
If you're a business owner who's been curious about AI for small automations, like a script to clean up a spreadsheet export or a quick fix on your WordPress site, this lowers the barrier to zero dollars.
The caveats (read these)
Free doesn't mean free of tradeoffs. A few things I'd keep in mind:
Review every diff. This goes for every coding agent, paid or free. AI-written code can look right and still be wrong. It can drop a check, misread what you asked, or "fix" something by deleting it. Read what it changed before you commit, and definitely before you deploy. Use Git so you can roll back.
Ads fund it. That's the deal, and I don't think it's a bad one, but go in with your eyes open. Think about what you're connecting to it and what code you're opening in it, especially if you work on client projects with confidentiality expectations. Read the privacy terms before you hook it up to GitHub, Stripe, or anything with customer data.
Be careful with integrations and keys. Giving any agent access to your payment platform, database, or production deploys is a real security decision. Start with the least access you can, use test environments where possible, and don't paste secrets into prompts.
It's not a substitute for judgment. An agent can write code fast. It can't tell you whether that code should exist, whether it's secure, or whether it fits how your business actually runs. That part is still on you, or on whoever you hire.
How to try it
- Go to freebuff.com and grab the desktop app for your OS, or install the CLI with
npm install -g freebuff. - Open a small, low-stakes project first. A personal script or a test repo, not your client's production site.
- Give it a clear, specific task. "Add input validation to the contact form" works better than "make it better."
- Read the diff. Run your tests. Then decide.
If you want to sign up, here's my referral link: https://freebuff.com/?ref=ref-dc83fd45-389e-4b02-ac8a-313a5df8f574 (Disclosure: that's a referral link, so I may get something if you use it. You don't pay anything either way.)
Bottom line
Paid coding agents aren't going away, and for heavy daily use some of them will still be worth the money. But a genuinely free, ad-supported option that runs on Mac, Windows, Linux, the terminal, and the browser is a good thing for small businesses and independent developers. It means you can try this stuff without a budget conversation.
Just treat it like any other tool you'd let near your code: limit what it can touch, check its work, and keep your own judgment in the loop.
If you're in Nanaimo or anywhere on the Island and want a hand setting up AI tools safely for your business, I'm happy to help.
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