Catch Every Type Change in TypeScript
Compare interfaces, type aliases, and generics side by side. Spot breaking type changes in Angular, React, and Node.js projects before they compile.
Compare TypeScript NowTypeScript's type system evolves with your codebase. Interface changes, generic refactoring, and type narrowing updates can break consumers silently if not reviewed carefully. When reviewing PRs that modify shared types, update Angular decorators, or refactor React component props, you need to see every type-level change clearly -- not buried in a wall of implementation details.
Why TypeScript Developers Choose PowerDiff
Type-Aware Highlighting
Interfaces, generics, enums, type aliases, and utility types are all syntax-highlighted. Review type changes with the same clarity as your editor.
Interface Evolution Tracking
Compare interface versions to see added, removed, or changed properties. Catch optional-to-required changes and type widening that break consumers.
Source Code Privacy
Your TypeScript code, type definitions, and internal interfaces never leave the browser. Safe for enterprise codebases and proprietary type systems.
Framework-Ready Diffs
Built on the Monaco editor with first-class TypeScript support. Compare Angular decorators, React TSX components, and NestJS controllers naturally.
Frequently Asked Questions
Does PowerDiff highlight TypeScript-specific syntax?
Yes. PowerDiff uses the Monaco editor, which provides full TypeScript syntax highlighting including interfaces, type aliases, generics, enums, decorators, and access modifiers. You get the same highlighting quality as VS Code.
Can I compare .ts and .tsx files?
Yes. PowerDiff handles both TypeScript and TSX (TypeScript with JSX) content. React component types, generic props, and JSX return types are all properly highlighted in the diff view.
Is PowerDiff useful for reviewing Angular or React TypeScript changes?
Absolutely. Compare Angular service changes, React hook type signatures, or NestJS controller updates. PowerDiff highlights decorators, dependency injection patterns, and component interfaces clearly.
Can I compare TypeScript declaration files (.d.ts)?
Yes. Paste your .d.ts files to compare type declarations, module augmentations, and ambient declarations. This is especially useful when reviewing changes to shared type packages or auto-generated types.
Ready to Diff Your TypeScript?
Paste your code and catch every type change instantly.
Compare TypeScript Now