Comparison

esbuild vs tsup

No leader: the top candidate esbuild has only 0.21 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

esbuild full profile →tsup full profile →

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esbuild70

tsup46

Attribute comparison across 2 tools
Attribute	esbuild	tsup
Vioscale score	70 / 100low · 21%	46 / 100low · 21%
Security
Scorecardsecurity.scorecard	5	3.5
Vulnerabilitiessecurity.vulnerabilities	Count: 3 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=esbuild&per_page=100 · Last 12m: 2 · Max severity: HIGH	Count: 1 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=tsup&per_page=100 · Last 12m: 0 · Max severity: LOW
Adoption
Dependent reposadoption.dependent_repos	491,246	9,462
Github starsadoption.github_stars	40,018	11,291
Activity
Commits last 30dactivity.commits_last_30d	34	0
Release
Cadence daysrelease.cadence_days	21	8
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	MIT	MIT
Language
Primarylanguage.primary	Go	TypeScript

Score

Vioscale score

esbuild70 / 100low · 21%

tsup46 / 100low · 21%

Security

Scorecard

esbuild5

tsup3.5

Vulnerabilities

esbuildCount: 3 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=esbuild&per_page=100 · Last 12m: 2 · Max severity: HIGH

tsupCount: 1 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=tsup&per_page=100 · Last 12m: 0 · Max severity: LOW

Adoption

Dependent repos

esbuild491,246

tsup9,462

Github stars

esbuild40,018

tsup11,291

Activity

Commits last 30d

esbuild34

tsup0

Release

Cadence days

esbuild21

tsup8

History

esbuild20 items

tsup20 items

License

Spdx

esbuildMIT

tsupMIT

Language

Primary

esbuildGo

tsupTypeScript

Capabilities

Feature-by-feature on the axes that matter for bundlers. “-” means undocumented, not absent.

Capability comparison for Bundlers
Capability	esbuild	tsup
Capabilities
Dev server hmr	-	-
Native esm dev	-	-
Code splitting	-	-
Tree shaking	-	-
Css bundling	-	-
Zero config	-	-
Webpack plugin compat	-	-
Rollup plugin compat	-	-
Monorepo aware	-	-
Source maps	-	-

Capabilities

Dev server hmr

esbuild-

tsup-

Native esm dev

esbuild-

tsup-

Code splitting

esbuild-

tsup-

Tree shaking

esbuild-

tsup-

Css bundling

esbuild-

tsup-

Zero config

esbuild-

tsup-

Webpack plugin compat

esbuild-

tsup-

Rollup plugin compat

esbuild-

tsup-

Monorepo aware

esbuild-

tsup-

Source maps

esbuild-

tsup-

What each one is

The product in its own terms, so the numbers below have context.

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.

Independently observed

tsup

A tool that bundles TypeScript libraries with automatic configuration, supporting Node.js native features and experimental CSS support.

Independently observed

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	esbuild	tsup
CLIPlatforms	✓	✓

Platforms

CLI

esbuild✓

tsup✓

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.