Sell the software you built, even if it has no users

You built something that works. Maybe on nights and weekends, maybe in the free time AI handed back to your week, maybe after a layoff gave you nothing but time. It runs, it does something useful, and it is sitting there earning nothing. That is the thing you can sell.

Can you sell software you built on the side?

Yes. If it runs and does something useful, you can list it and sell a license to it. No users required. No revenue required. No company to stand up first. The work is already done. Selling it is the part you have not done yet.

This is true whether you still have a job or not. The software you built on your own time is yours to sell, and plenty of Builders here are employed people turning a weekend project into a second income.

How does one thing you built turn into income?

The license is non-exclusive. You sell a license to one Buyer, you keep the copyright, and you sell the same build to the next Buyer, and the one after that. One build, sold more than once. You keep 92% of every sale.

That is the difference between selling software and selling a chair. The chair sells once. The build keeps selling, because each Buyer gets their own license to run their own copy. You can even keep running your own version the whole time.

What kind of software actually sells?

Working software you made. An AI agent, an internal tool, a scheduling app, a scraper, a starter template, a bot that does one thing well. If a Buyer can run it and get value on day one, it has a price.

AI-built software counts. 84% of developers now use or plan to use AI tools to write code, per the Stack Overflow 2025 Developer Survey, which means a lot of good software got built by people who never shipped it anywhere. A Buyer does not care whether you typed every line or an AI did. They care that it works.

What do you actually have to do to sell it?

List it. That is most of the job. You do not have to market it, answer support tickets, chase invoices, or turn yourself into a company. You point at software you already deployed, set a price, and it goes up for sale.

You keep everything you built. The Builder keeps the copyright, so selling a license does not mean giving the thing away. You can keep running your own copy, keep improving it, and keep selling licenses to it the whole time.

How much do you keep, and how does the money reach you?

You keep 92%. A completed sale carries an 8% platform commission, and the rest is yours.

The money is handled so a Buyer cannot take the code and vanish. On a sale at or above $100, the payment is held in escrow while the Buyer tries your software in a test environment for 7 days. Once they confirm it is what you said, the code is released and you are paid. Under $100, the sale is instant. Either way, identity is verified on both sides, so you know a real Buyer is on the other end.

Where do you start?

You list the software from wherever it already lives at list from anywhere. If the reason it never earned anything is that nobody found it, read you built an app and nobody uses it. For the honest math on what selling a codebase to many Buyers pays over time, read is SaaS passive income. And if you are still working out whether any of this is for you, who is Zero to Hundred for lays out all three sides.