Rspack
A high-performance bundler that replaces webpack while maintaining API compatibility
- Also known as
- rspack
What is Rspack?
Rspack is a Rust-powered bundler designed as a drop-in replacement for webpack. It combines Rust's performance with JavaScript tools through parallel architecture to provide faster builds and superior developer experience with HMR.
Rspack pricing
We don't have Rspack's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What Rspack does
The capabilities that matter for bundlers, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Dev server hmr
- ✓
- Native esm dev
- -
- Code splitting
- ✓
- Tree shaking
- ✓
- Css bundling
- ✓
- Zero config
- -
- Webpack plugin compat
- ✓
- Rollup plugin compat
- -
- Monorepo aware
- -
- Source maps
- ✓
Platform & deployment
Independently observed- CLI
- Web
- Self-hosted
Integrations (18)
Independently observed- Rsdoctor
- Extension.js
- Angular Rspack
- Re.Pack
- Rsbuild
- Rslib
- Rstest
- Rslint
- Docusaurus
- Modern.js
- Meteor
- Next.js
- Nuxt
- Nx
- React Native
- Storybook
- TanStack Router
- TanStack Start
Security & compliance
Known vulnerabilities: 1 (0 in the last 12 months), max severity MODERATE sourcea count reflects scale & disclosure, not quality
Rspack FAQ
Common questions about Rspack, answered from independent, dated evidence.
What is Rspack?
Rspack is a bundler designed for web applications that replaces webpack with faster build speeds and incremental compilation. It maintains webpack API compatibility while delivering performance improvements for local development and production builds. It is indexed under Bundlers.
Source: https://rspack.dev
Is Rspack free to use?
Rspack is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.
Source: https://rspack.dev
What platforms does Rspack support?
Rspack supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://rspack.dev
Can Rspack be self-hosted?
Yes. Rspack can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://rspack.dev
What does Rspack integrate with?
We have confirmed 14 integrations for Rspack, including Rsbuild, Rslib, Rstest, Rslint, Docusaurus, Modern.js, Meteor and Next.js, plus 6 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.
Source: https://rspack.dev
Is Rspack open source?
Yes. Rspack is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
Rspack alternatives
Other bundlers we track, ranked by the same independent score.
- ViteA modern, high-performance build system for web developmenthigh · 78%
- webpackJavaScript module bundler that packages code and assets for web browsershigh · 78%
- MetroA high-performance bundler optimized for React Native developmentmedium · 66%
- RollupA JavaScript bundler that optimizes ES modules for different runtime environments and removes unused code automaticallyhigh · 76%
- Turbopackmedium · 60%
- esbuildmedium · 66%
Compare Rspack
Side by side against other bundlers, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Rspack, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Capabilities | 100 | 0.08 | 8.3 | ✓ |
| Development activity | 63 | 0.12 | 7.6 | ✓ |
| Release cadence | 97 | 0.07 | 6.5 | ✓ |
| Stars | 78 | 0.03 | 2.6 | ✓ |
| Integrations | 36 | 0.05 | 1.9 | ✓ |
| Dependent projects | 21 | 0.08 | 1.7 | ✓ |
| Security posture | 0 | 0.09 | 0.0 | - |
| Package downloads | 0 | 0.17 | 0.0 | - |
| Security score | 0 | 0.05 | 0.0 | - |
| Developer Q&A activity | 0 | 0.08 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 100 | mediumsource · 2026-10-14 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 6 items | mediumsource · 2026-09-10 · 66% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Open source, Source maps, Css bundling, Tree shaking, Code splitting, Dev server hmr, Hmr dev server, Incremental builds, Webpack plugin compat, Tree shaking code splitting | mediumsource · 2026-10-14 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 17 | mediumsource · 2026-10-14 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Rust | highsource · 2026-10-14 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-10-14 · 95% |
Pricing
Release
Security
| Attribute | Value | Evidence |
|---|---|---|
| Vulnerabilities | Count: 1 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40rspack%2Fcore&per_page=100 · Last 12m: 0 · Max severity: MODERATE | highsource · 2026-10-14 · 90% |
Is Rspack the right choice for you?
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