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Head-to-head · JavaScript Build Tools

Rspack vs Rolldown

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Rspack #4 in JavaScript Build Tools 9.0/10 Free plan Free plan✓ 5 of 6 features Visit Rspack
Rolldown #7 in JavaScript Build Tools 8.6/10 Free plan Free plan✓ 5 of 6 features Visit Rolldown

Rspack leads on 0 checks, Rolldown on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreRspack · 9.0/10
  • Free planboth

Rspack scores higher on our rubric for javascript build tools: 9.0 against 8.6 out of 10; our editors rank them #4 and #7.

Rspack is the better fit for webpack-compatible high-performance builds. Rolldown is the better fit for rollup-compatible Rust builds.

  • Rspack fits best

    Webpack-compatible high-performance builds

  • Rolldown fits best

    Rollup-compatible Rust builds

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Rspack 9.0/10 Visit ↗ Rolldown 8.6/10 Visit ↗
At a glance
Editor score 9.0 8.6
Ranking #4 in JavaScript Build Tools #7 in JavaScript Build Tools
Best for Webpack-compatible high-performance builds Rollup-compatible Rust builds
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Desktop
Platforms Windows, macOS, Linux Windows, macOS, Linux
Support Community, Docs Community, Docs
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Rspack 5/6 · Rolldown 5/6
TypeScript support ✓ ✓
Code splitting ✓ ✓
Tree shaking ✓ ✓
Source maps ✓ ✓
Plugin API ✓ ✓
Remote build cache Not checked yet Not checked yet
Our review
Pros
  • Rust-based parallelized bundling for web applications and libraries
  • Webpack-compatible loaders, plugins, APIs, and broad framework integrations
  • Code splitting, tree shaking, HMR, Module Federation, and TypeScript support
  • Rust-based bundling with Rollup-compatible configuration and plugins
  • Supports TypeScript, JSX, code splitting, tree shaking, and source maps
  • Provides CLI plus JavaScript build, bundle, and watch APIs
Cons
  • Focused on JavaScript web applications and libraries
  • Local development tooling requires project-level integration
  • Its benefits are strongest for webpack-oriented workflows
  • Its workflow is centered on code, configuration, CLI, and APIs
  • The product focus is bundling rather than broader delivery workflows
  • Teams may need to review compatibility with existing Rollup plugins
Our verdict

Rspack is an open-source, Rust-based JavaScript bundler for web applications and libraries. It is designed for teams modernizing webpack-based projects while retaining access to familiar loaders, plugins, configuration patterns, and…

Read the review →

Rolldown is an open-source, Rust-based JavaScript bundler from VoidZero Inc. It is designed for developers building web applications and libraries who want Rollup-compatible configuration and plugin APIs alongside TypeScript and JSX…

Read the review →
  1. RspackJavaScript Build Tools 9.0Free plan
  2. RolldownJavaScript Build Tools 8.6Free plan

Strengths and trade-offs

  • Rspack — where it wins

    • Rust-based parallelized bundling for web applications and libraries
    • Webpack-compatible loaders, plugins, APIs, and broad framework integrations
    • Code splitting, tree shaking, HMR, Module Federation, and TypeScript support

    Where it doesn't

    • Focused on JavaScript web applications and libraries
    • Local development tooling requires project-level integration
    • Its benefits are strongest for webpack-oriented workflows
  • Rolldown — where it wins

    • Rust-based bundling with Rollup-compatible configuration and plugins
    • Supports TypeScript, JSX, code splitting, tree shaking, and source maps
    • Provides CLI plus JavaScript build, bundle, and watch APIs

    Where it doesn't

    • Its workflow is centered on code, configuration, CLI, and APIs
    • The product focus is bundling rather than broader delivery workflows
    • Teams may need to review compatibility with existing Rollup plugins

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update