Hey everyone,
I kept running into the same problem: trying to figure out exactly how much a CI/CD pipeline or a cloud service was going to cost before getting the actual bill at the end of the month. Comparing GitHub Actions vs GitLab CI, or trying to understand AWS Lambda vs EC2 costs, usually meant digging through endless pricing docs and doing the math manually.
So, I built a solution: a suite of 12 free, privacy-first developer cost calculators.
Here are a few of the tools included:
- GitHub Actions Cost Calculator: Paste your YAML workflow and instantly see the exact per-run and monthly costs across Ubuntu, Windows, and macOS runners. (Did you know macOS runners cost 10x more than Ubuntu?)
- CI/CD Cost Comparison: Compare GitHub Actions, GitLab CI, and CircleCI side-by-side to find the cheapest platform for your specific workflow.
- AWS Tools: Lambda vs EC2 calculators, comparing x86 vs ARM Graviton2 architecture (switching to ARM can save you 20% on Lambda).
- AI API Rate Limit Calculator: Figure out your max concurrent users and daily request budgets for OpenAI, Claude, Gemini, etc.
- Tech Stack Cost Estimator: Estimate your total monthly infra cost combining tools like Vercel, Supabase, Clerk, Resend, etc.
Why I made it free:
Every developer deserves accurate pricing data without hitting a paywall, an email wall, or needing a credit card.
- No Signup/Login: Just open and use it.
- Fully Private: All calculations run entirely in your browser. Your data never leaves your device.
- Up-to-date: Pricing data is updated for 2026.
I've put together a GitHub repo that lists all 12 tools, explains what they do, and has the direct links to use them.
You can check out the full list and access the calculators here:
👉 https://github.com/Shubhamorigin/cloud-cost-calculators
U can directly use it - https://githubactionscost.online
Let me know if you find it useful or if there are any other specific calculators you'd like to see added! Feedback is always welcome.
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