What is esbuild?
A fast bundler that combines JavaScript and other web assets into optimized output, with built-in TypeScript support and APIs accessible through command-line, JavaScript, and Go interfaces.
What esbuild 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
Security & compliance
Known vulnerabilities: 3 (2 in the last 12 months), max severity HIGH sourcea count reflects scale & disclosure, not quality
esbuild FAQ
Common questions about esbuild, answered from independent, dated evidence.
What is esbuild?
A fast bundler that combines JavaScript and other web assets into optimized output, with built-in TypeScript support and APIs accessible through command-line, JavaScript, and Go interfaces. It is indexed under Bundlers.
Source: https://esbuild.github.io
What platforms does esbuild support?
esbuild supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://esbuild.github.io
Is esbuild open source?
Yes. esbuild 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.
Source: https://github.com/evanw/esbuild
esbuild 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%
- RspackA high-performance bundler that replaces webpack while maintaining API compatibilitymedium · 65%
- Turbopackmedium · 60%
Compare esbuild
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 esbuild, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Dependent projects | 95 | 0.08 | 7.6 | ✓ |
| Release cadence | 88 | 0.07 | 5.9 | ✓ |
| Capabilities | 58 | 0.08 | 4.8 | ✓ |
| Stars | 87 | 0.03 | 2.9 | ✓ |
| Security score | 50 | 0.05 | 2.7 | ✓ |
| Integrations | 0 | 0.05 | 0.0 | - |
| Development activity | 0 | 0.12 | 0.0 | ✓ |
| Security posture | 0 | 0.09 | 0.0 | - |
| Package downloads | 0 | 0.17 | 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 | 0 | mediumsource · 2026-10-13 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 3 items | mediumsource · 2026-09-10 · 72% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Source maps, Css bundling, Tree shaking | mediumsource · 2026-10-13 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Go | highsource · 2026-10-13 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-10-13 · 95% |
Release
Security
Is esbuild the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank esbuild against the rest of the bundlers we index, using the same dated evidence weighted your way.
Free to run, no account needed to start. How the evaluation works
Is this your product?
This profile was built from public sources without asking you. You can take the badge below and use it anywhere, and you can claim the profile to correct anything we got wrong. Both are free, and neither moves esbuild up or down: nobody can buy rank here, including you.
Take the badge
Live, always current, and free to use on your own site. It shows esbuild's independent score and links back to this profile.
<a href="https://www.vioscale.ai/software/esbuild" target="_blank" rel="noopener">
<img src="https://www.vioscale.ai/badge/software/esbuild.svg" alt="esbuild, verified on vioscaleAI" width="330" height="76" loading="lazy" />
</a>Markdown, for a README →
[](https://www.vioscale.ai/software/esbuild)Claim the profile
Verify you control the domain, then point us at the pages that state the facts about esbuild and add your own description and media. Free, and it does not change the score.
- Correct anything wrong, with evidence
- Point our crawler at the pages that matter
- Write your own description and add media
Not the owner? How vendor profiles work