ts-morph

What it is

ts-morph is a powerful TypeScript compiler API wrapper that enables developers to perform static analysis and make programmatic changes to their code. It simplifies the process of working with TypeScript source files, making it easier to analyze and modify code programmatically.

ts-morph stands out by providing a more accessible and streamlined way to interact with the TypeScript compiler API compared to directly using the TypeScript Compiler API itself.

When it fits — and when it doesn’t

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

1. 01

   Steep learning curve for new users

   ts-morph's API is comprehensive but not always intuitive, requiring a significant investment of time to fully understand and utilize effectively.

2. 02

   Limited documentation and examples

   The official documentation lacks depth and practical examples, which can make it difficult for developers to implement complex use cases without extensive trial and error.

3. 03

   Performance overhead when processing large codebases

   ts-morph's operations on large TypeScript projects can be slow due to the complexity of parsing and manipulating ASTs, which may lead to longer build times or slower tooling performance.

4. 04

   Frequent breaking changes in minor updates

   The library has a history of introducing significant API changes even within minor version updates, requiring developers to frequently adapt their codebases to the latest API.

What it does well

• Static analysis of TypeScript code

• Programmatic modification of source files

• Simplified interaction with the TypeScript compiler API

Pricing

Free tier

YesOpen source — free to use

Paid from

$0

Model

Flat rate

Enterprise plan

No

Pricing not independently confirmed — check the vendor’s page.