Developer Tools · head to head
ESLint vs TypeScript
The short version
- Each has a real cost: ESLint slow performance on large codebases compared to newer tools like Oxlint and Biome; TypeScript requires build/compilation step; adds complexity to development workflow
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which ESLint and TypeScript actually diverge.
| Attribute | ESLint | TypeScript |
|---|---|---|
| Platforms | Browser-based JavaScript, Node.js, Any JavaScript environment | JavaScript Runtime, Web Browser, Node.js, Deno, Bun |
| Category | Developer Tools | Web Development |
| Founded | 2019 | 2012 |
Identical on both: starting price (Free), pricing model (Unknown), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in ESLint
Nothing recorded that TypeScript does not also cover.
Only in TypeScript
- Static typing
- Type inference
- Compile-time checking
- ES6+ features
- Interface definitions
- Generics
- Decorators
- Module system
What people use each for
The jobs each tool is most often brought in to do.
ESLint
- Statically analysing JavaScript and JSX to find problems before runtimenot TypeScript
- Automatically fixing issues with syntax-aware rewritesnot TypeScript
- Enforcing a consistent code style across a teamnot TypeScript
- Running as a CI step to block non-conforming codenot TypeScript
- Writing custom rules for project-specific conventionsnot TypeScript
TypeScript
- Large-scale applicationsnot ESLint
- Enterprise developmentnot ESLint
- Type-safe JavaScriptnot ESLint
- Team collaborationnot ESLint
- API developmentnot ESLint
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
ESLint
- Slow performance on large codebases compared to newer tools like Oxlint and Biome
- Complexity in configuration from scratch, particularly for TypeScript support
- Limited built-in TypeScript support, requiring separate parsers and coordination with new TypeScript features
TypeScript
- Requires build/compilation step; adds complexity to development workflow
- Performance slower than compiled languages like Rust or Go when running on same hardware
- Type safety only at compile-time; runtime errors still possible if types are misused
- JavaScript ecosystem requires understanding both TypeScript and JavaScript
Pricing, plan by plan
ESLint
FreeNo published plan breakdown. See the ESLint review.
TypeScript
FreeNo published plan breakdown. See the TypeScript review.
Which should you pick?
Choose ESLint if
- You want to start without paying.
- You work on Browser-based JavaScript, Node.js, Any JavaScript environment.
Choose TypeScript if
- You need static typing.
- You want to start without paying.
- You work on JavaScript Runtime, Web Browser, Node.js, Deno, Bun.
- You also want type inference.
Questions people ask
- Is ESLint or TypeScript better?
- Neither clearly leads. ESLint starts at Free and TypeScript at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, ESLint or TypeScript?
- ESLint starts at Free and TypeScript at Free.
- Does ESLint or TypeScript run on more platforms?
- ESLint runs on Browser-based JavaScript, Node.js, Any JavaScript environment. TypeScript runs on JavaScript Runtime, Web Browser, Node.js, Deno, Bun.
- Can I use ESLint for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is ESLint best used for?
- ESLint is most often used for statically analysing javascript and jsx to find problems before runtime, automatically fixing issues with syntax-aware rewrites, enforcing a consistent code style across a team, running as a ci step to block non-conforming code. Of those, statically analysing javascript and jsx to find problems before runtime and automatically fixing issues with syntax-aware rewrites are not what TypeScript is typically brought in for.
- What can ESLint do that TypeScript cannot?
- TypeScript covers Static typing, Type inference, Compile-time checking, ES6+ features.
Answered from the vendors’ own pages
ESLint: Does ESLint automatically fix code issues?
Many problems ESLint finds can be automatically fixed via the --fix flag. ESLint fixes are syntax-aware so you won't experience errors introduced by traditional find-and-replace algorithms.
SourceTypeScript: What is TypeScript?
TypeScript is an open-source programming language developed by Microsoft that adds static type checking and object-oriented features to JavaScript while compiling down to standard JavaScript.
SourceESLint: How much does ESLint cost?
ESLint is completely free and open-source software maintained by the OpenJS Foundation. The project accepts voluntary donations from sponsors.
SourceTypeScript: When was TypeScript released?
TypeScript was publicly announced on October 1, 2012, by Microsoft after two years of internal development. Version 0.8 was the first release.
SourceESLint: Can I write custom ESLint rules?
Yes. You can develop custom rules that work alongside built-in functionality through ESLint's plugin system, allowing complete customization for your project needs.
SourceTypeScript: Is TypeScript free?
Yes. TypeScript is open-source under the Apache 2.0 license and free to use for commercial and non-commercial purposes.
SourceTypeScript: What is the latest version of TypeScript?
As of February 28, 2025, TypeScript version 5.8 is the latest release.
SourceTypeScript: Does TypeScript require a compilation step?
Yes. TypeScript code must be compiled to JavaScript before execution in browsers or Node.js. This adds a build step to your development workflow.
SourceTypeScript: Can I use TypeScript everywhere JavaScript runs?
After compilation to JavaScript, yes. TypeScript compiles to standard JavaScript that runs in any JavaScript runtime including browsers, Node.js, and Deno.
SourceRelated pages
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