Migration Effort Estimator
Answer seven quick questions about your migration project. Get an effort score, time estimate, risk assessment, and phase-by-phase breakdown — all computed instantly in your browser.
How It Works
Answer 7 Questions
Tell us about your tech stack, codebase size, test coverage, dependencies, deprecated APIs, and team experience with the target version.
Get Your Score
Each answer feeds a weighted algorithm that produces an effort score (1–100), risk level, and letter grade. Higher scores mean harder migrations.
Plan Your Work
Get a phase-by-phase time breakdown (Research, Code Changes, Testing, Deployment) and tailored recommendations. Copy as Markdown for your team.
FAQ
Is my data sent anywhere?
No. Everything runs in your browser using JavaScript. Your answers never leave your device. The only network requests are badge image fetches from our badge service.
How is the effort score calculated?
Each of the seven factors has a weighted contribution. Version jump distance is the heaviest factor, followed by test coverage and codebase size. The weighted sum is capped at 100. Scores below 25 are Low risk, 25–50 Medium, 51–75 High, and above 75 Critical.
How accurate are the time estimates?
They are directional estimates based on industry averages. Actual effort depends on your specific codebase, team velocity, and tooling. Use them as a starting point for sprint planning, not a commitment.
Can I use this for framework migrations (e.g. Angular to React)?
This tool is designed for version upgrades within the same technology (e.g. Python 3.9 to 3.13). Cross-framework migrations involve additional considerations like rewriting components, which this estimator does not cover.
Stay ahead of every migration
Track releases, EOL dates, and breaking changes across your entire stack — delivered when new versions land.