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Head-to-head · Code Transpilers

Babel vs TeaVM

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Babel #1 in Code Transpilers 9.3/10 Free plan Free plan✓ 4 of 4 features Visit Babel
TeaVM #5 in Code Transpilers 8.6/10 Free plan Free plan✓ 2 of 4 features Visit TeaVM

Babel leads on 0 checks, TeaVM on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreBabel · 9.3/10
  • Free planboth
  • Most featuresBabel · 4 of 4

Babel scores higher on our rubric for code transpilers: 9.3 against 8.6 out of 10; our editors rank them #1 and #5.

On conversion mode, Babel gives you Both where TeaVM offers Source-to-source.

Babel is the better fit for javaScript projects needing flexible transforms. TeaVM is the better fit for java teams targeting JavaScript or WebAssembly.

  • Babel fits best

    JavaScript projects needing flexible transforms

  • TeaVM fits best

    Java teams targeting JavaScript or WebAssembly

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Side by side

Feature Babel 9.3/10 Visit ↗ TeaVM 8.6/10 Visit ↗
At a glance
Editor score 9.3 8.6
Ranking #1 in Code Transpilers #5 in Code Transpilers
Best for JavaScript projects needing flexible transforms Java teams targeting JavaScript or WebAssembly
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted, Browser extension Self-hosted
Support Community, Docs Email, Docs
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Babel 4/4 · TeaVM 2/4
Syntax-version conversion ✓ (best) Not checked yet
Intermediate output ✓ (best) Not checked yet
CLI access ✓ ✓
API access ✓ ✓
Specs
Source languages Not checked yet Not checked yet
Target languages Not checked yet Not checked yet
Conversion mode Both Source-to-source
Our review
Pros
  • Plugin- and preset-based pipelines support configurable syntax transforms.
  • Offers CLI, Node.js APIs, source maps, and AST tooling.
  • Open source, with polyfill integration and browser-based compilation.
  • Compiles Java bytecode to JavaScript and Java or Kotlin to WebAssembly GC
  • Maven and Gradle integration with JavaScript interoperability
  • Includes source maps, debugging, development servers, and browser testing
Cons
  • Configuration depends on selecting and combining plugins or presets.
  • Support channels are community resources and documentation.
  • The project is distributed as a collection of npm packages.
  • Works within TeaVM’s supported Java API constraints
  • Focused on new web applications and selected code reuse, not every Java workload
  • Requires self-hosted deployment
Our verdict

Babel is an open-source JavaScript compiler and toolchain for developers who need to transform modern ECMAScript syntax for current or older browsers and other environments. Its audience includes solo developers and teams of different…

Read the review →

TeaVM is an open-source ahead-of-time compiler for Java, Kotlin, and Scala developers who want to build web front ends or reuse selected backend code in browser applications. It compiles Java bytecode to JavaScript, supports Java and…

Read the review →
  1. BabelCode Transpilers 9.3Free plan
  2. TeaVMCode Transpilers 8.6Free plan

Strengths and trade-offs

  • Babel — where it wins

    • Plugin- and preset-based pipelines support configurable syntax transforms.
    • Offers CLI, Node.js APIs, source maps, and AST tooling.
    • Open source, with polyfill integration and browser-based compilation.

    Where it doesn't

    • Configuration depends on selecting and combining plugins or presets.
    • Support channels are community resources and documentation.
    • The project is distributed as a collection of npm packages.

  • TeaVM — where it wins

    • Compiles Java bytecode to JavaScript and Java or Kotlin to WebAssembly GC
    • Maven and Gradle integration with JavaScript interoperability
    • Includes source maps, debugging, development servers, and browser testing

    Where it doesn't

    • Works within TeaVM’s supported Java API constraints
    • Focused on new web applications and selected code reuse, not every Java workload
    • Requires self-hosted deployment
  • Babel9.3/10 · Free plan

    Flexible ECMAScript transforms with CLI, Node.js APIs, and browser compilation.

    Visit BabelFull verdict →
  • TeaVM8.6/10 · Free plan

    A free, open-source compiler for Java teams building browser applications or native targets.

    Visit TeaVMFull verdict →

More comparisons

All code transpilers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update