TypeCoverage AI

Measure TypeScript type coverage and identify remaining any-typed gaps

Code & DevelopmentFree

TypeCoverage AI measures the percentage of expressions in a TypeScript codebase that have explicit or inferred types versus those that fall back to 'any' through explicit annotation, implicit inference failure, or third-party library gaps. The tool generates coverage reports showing the most impactful files to type, estimates the effort required to reach target coverage levels, and identifies patterns where 'any' types propagate through the codebase. TypeScript migration teams use it to prioritize typing efforts and track progress toward fully typed codebases.

Key Features

• ✓Expression-level type tracking
• ✓Any-propagation analysis
• ✓Migration effort estimation
• ✓Coverage trending
• ✓Impact-based prioritization