Migration Guide
Migrate from JavaScript to TypeScript
Migrate a JavaScript codebase to TypeScript. Incremental adoption with ts-migrate for batch conversion, AI-powered codemods for complex patterns, and strict type checking as the end goal.
What you get
Risk assessment
Blockers, warnings, and unknowns ranked by severity
Effort estimate
Hours, t-shirt size, and role breakdown
Cost estimate
Labor, infrastructure, and tooling cost range
Migration steps
Ordered execution plan with durations
Open questions
What still needs to be answered before you start
Draft config or code
Starter configs when the migration path supports it
How it works
Describe your migration
Select JavaScript as source and TypeScript as target. Add context about your setup — configs, docs, architecture notes.
Keshro runs the analysis
Keshro researches the path, finds similar past migrations, and generates a structured assessment with risks, effort, cost, and steps.
Get your plan
Review the migration plan, refine it with your team, and use it as a living document during execution.
Ready to plan your JavaScript to TypeScript migration?
Get a risk assessment, effort estimate, and step-by-step plan in minutes.
Start Migration Analysis