Flow vs TypeScript: Which Is Better Suited For Your Next Project?

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John Kapantzakis
Senior Developer
Two developers in front of giant Flow and Typescript logos
Originally published on Jul 16, 2020Last updated on Jan 4, 2024

Key Takeaways

Is Flow faster than TypeScript?

In general, TypeScript is faster than Flow when it comes to performance. Flow is quicker to start using in a project, as it only requires you to add an annotation to a regular JavaScript file. For efficiency, TypeScript is the best choice. For getting up and running quickly, Flow tends to be a better choice.

Is Flow better than TypeScript?

This greatly depends on the use case and preferences of the developer. TypeScript has a number of cons, including a steep learning curve and boilerplate code, however, TypeScript also offers a large community and additional functionality. Flow is generally less robust with a smaller community, but offers a better ease of use.

What is the difference between Flow and TypeScript?

TypeScript provides more than just type checking when it’s added to a project. Flow primarily provides type-checking functionality. TypeScript has a steeper learning curve compared to Flow but offers more robustness as a result. Generally, Flow is a simple type checker, whereas TypeScript is a more complex type checker that also extends JavaScript functionality.