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Rolldown

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Blazing fast Rust-based JavaScript bundler with Rollup-compatible API and esbuild feature parity.

Free, no paid tier
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Reviews on SourceForge
67 reviews tracked

The Bottom Line

Price
Free, no paid tier. Compare plans

Key facts

  • Rust-based JavaScript bundler for blazing fast performance.
  • Offers Rollup-compatible API and esbuild feature parity.
  • Designed for Vite 8+ and handles large module counts efficiently.

Pros

  • Rust-based bundler
  • Rollup compatible
  • Fast performance
  • Active development
  • Vite integration

Cons

  • Very new
  • Not production ready
  • Limited ecosystem
  • Still developing
  • Documentation sparse

What is Rolldown?

Rolldown is a high-performance JavaScript bundler built with Rust, designed to offer a significantly faster alternative to existing bundlers. It provides a Rollup-compatible API, allowing developers to leverage a familiar interface and a rich plugin ecosystem. Additionally, Rolldown achieves feature parity with esbuild, incorporating built-in transforms, define, inject, minification, and CSS bundling capabilities. This bundler is particularly well-suited for projects requiring rapid build times, especially those with a large number of modules. It's engineered to handle tens of thousands of modules efficiently, as demonstrated by benchmarks showing superior performance compared to esbuild, rspack, and Rollup + esbuild combinations. Rolldown is also explicitly designed to power Vite 8+ as its unified bundler, making it an excellent choice for Vite users seeking enhanced build performance. Rolldown is free and open-source, supported by a dedicated full-time team and community contributors, making it accessible for all developers looking to optimize their JavaScript bundling process.

Available on: Web

Data compiled by Toolradar Pricing checked · How we evaluate
Source rolldown.rs

Ratings Across the Web

4.5 (67 reviews)

Rolldown holds an aggregate rating of 4.5 out of 5 from 67 reviews across SourceForge, last checked September 9, 2026.

SourceForge 67 reviews
4.5/5

Ratings aggregated from independent review platforms. Learn more

Key Features

  • Rust-based bundler
  • Rollup compatible
  • Fast builds
  • Tree shaking
  • ES modules
  • Plugin support

Pricing Plans

Pricing checked Sep 30, 2026. Source: rolldown.rs, read Sep 30, 2026

Rolldown plans and prices, checked September 2026
Plan Price Details
Free

$0

  • Open source (MIT)
  • Rollup-compatible API
  • 10-30x faster than Rollup
+1 more
  • Rust-based bundler
View full pricing

Is Rolldown worth the price?

Great value

Rolldown's pricing is exceptionally generous, as it is entirely free and open-source.

This makes it an incredibly fair and accessible option for all users. It's best for developers and organizations looking for a high-performance bundler without any financial commitment.

Full Rolldown pricing: every plan, hidden costs and alternatives

Rolldown by the numbers

Rolldown compared with 131 IDE & Code Editors tools on Toolradar, as of Oct 2026
Metric Rolldown Peer median Position (1 is best)
Free plan Yes 90% have one n/a
User rating 4.5/5 (across the web, 67 ratings) 4.4/5 #14 of 44 (joint) tools with 20+ reviews

Each position is counted among the tools that have data for that row, as noted under it. All IDE & Code Editors data · How we compute this. Advertising and placement fees are not inputs to any position.

Cite this: Toolradar, “Rolldown by the numbers”, Oct 2026.

Reviews

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4.5/5

Across 67 verified user reviews on SourceForge

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Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

All Rolldown alternatives 6+ tools ranked, pricing + verdict per pick Rolldown vs Rollup Head-to-head: features, pricing, who wins Rolldown vs Webpack Head-to-head: features, pricing, who wins Rolldown vs SWC Head-to-head: features, pricing, who wins

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Rolldown FAQ

How does Rolldown improve build times for large JavaScript projects?

Rolldown is a Rust-based bundler engineered for high performance, specifically designed to handle projects with tens of thousands of modules efficiently. Benchmarks demonstrate its superior performance compared to other bundlers, leading to significantly faster build times.

Which teams would benefit most from using Rolldown?

Teams working on projects that require rapid build times and have a large number of modules would benefit most from Rolldown. It is also an excellent choice for Vite users, as it is designed to power Vite 8+ as its unified bundler.

How does Rolldown compare to esbuild in terms of features?

Rolldown achieves feature parity with esbuild, incorporating built-in transforms, define, inject, minification, and CSS bundling capabilities. This allows developers to leverage a familiar set of functionalities while benefiting from Rolldown's performance advantages.

What kind of limitations should users be aware of when considering Rolldown?

Users should be aware that Rolldown is a very new tool and is not yet considered production-ready. Its ecosystem is still limited, and the documentation is currently sparse as it continues to develop.

How is Rolldown priced?

Rolldown is free and open-source, making it accessible for all developers without requiring any paid plans. It is supported by a dedicated full-time team and community contributors.

Can Rolldown integrate with existing Rollup plugins?

Yes, Rolldown provides a Rollup-compatible API, which allows developers to leverage a familiar interface and a rich plugin ecosystem. This compatibility helps in integrating with existing Rollup plugins.

Does Rolldown offer built-in transformations and optimizations?

Yes, Rolldown includes built-in transforms, define, inject, and minification capabilities. It also supports CSS bundling, providing a comprehensive set of features for optimizing JavaScript projects.

Source: rolldown.rs

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