How to Find a Profitable SaaS Idea in Your Abandoned GitHub Repos
Updated 2026-07-06 · by HiddenMRR
Short answer
Most abandoned repos are not businesses — but one or two might be. To find them, stop judging the code and judge the problem: look for a boring, recurring pain that a business loses money on. Score each repo on payer, recurrence, and reachability; anything scoring high is worth a weekend, and the rest you delete guilt-free.
The mistake: judging repos by code, not by pain
When developers reopen an old project, they read the code and decide based on how clean it is. That is the wrong axis. Commercial value lives in the problem you were solving, not in the quality of the solution. A rough, half-finished script that automates a painful, recurring B2B task is worth more than a beautifully architected app nobody needs.
The abandoned repo you are embarrassed by might be sitting on the only thing that actually matters in SaaS: evidence that a real problem annoyed you enough to build something for it.
The three signals that predict revenue
Score every old repo from 0 to 2 on each of these. Anything totalling 4 or more deserves a serious second look:
Where the hidden ideas actually hide
The repos most likely to contain a business are the unglamorous ones:
Pricing reality for a solo dev tool
Be honest with the math before you fantasise about MRR. A one-time utility sells for roughly €9 to €49; something with ongoing value sustains €9 to €29 per month. B2B tolerates 5 to 10 times consumer pricing, so lean B2B.
The receipts: a €9 one-time tool needs about 110 sales a month to clear €1,000. A €29-per-month tool needs about 35 active subscribers for the same €1,000 — and it compounds instead of resetting to zero every month. Under-pricing to 'get users' usually just gets you unpaid support tickets.
The brutal part
Around 90% of your repos are not businesses, and that is completely fine. The point of this exercise is not to save every project — it is to find the one or two that are real and delete the rest without guilt.
Finishing the right old project beats starting a shiny new one, because the single riskiest question in any software business — does anyone actually need this — is already partly answered by the fact that you once needed it enough to build it.
A 30-minute audit you can run today
You do not need a tool to start. You need thirty focused minutes:
Frequently asked questions
Should I finish an old project or start a new one?
Finish the old one if it scores 4 or more on payer, recurrence, and reachability. The hardest question in any SaaS is whether anyone actually needs this, and a project you built from real friction already has a head start on the answer that a brand-new idea does not.
Do GitHub stars mean a repo can make money?
Not directly. Stars measure developer curiosity, not willingness to pay. A repo with 12 stars solving a boring B2B billing problem can out-earn a 2,000-star developer toy. Look at who opens issues and why, not the star count.
How much can a single abandoned repo realistically make?
Most make €0. The realistic win for a solo developer is a €9 to €29 per month micro-SaaS, or a one-time tool doing €200 to €1,000 per month — enough to matter, not quit-your-job-tomorrow money. Anyone promising more is usually selling you a course.
What is the fastest way to audit many repos at once?
Score them on three axes — payer, recurrence, reachability — in a spreadsheet, or use a tool like HiddenMRR that reads each repo's README and package.json and flags commercial signal automatically. Either way the goal is to shortlist one or two, not to rank all forty.
Which of your abandoned repos is closest to money?
HiddenMRR scans your GitHub and scores each project on real B2B revenue potential. First scan is free, no card. €9 one-time for unlimited scans.
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