Bundlephobia | Size of npm dependencies
Worth it
Confidence: Medium
Any frontend developer should keep Bundlephobia open . it is free and instantly answers what a dependency costs your bundle before you install it.
Comparison
Bundlephobia | Size of npm dependencies and GitHub both land on Worth it.
Any frontend developer should keep Bundlephobia open . it is free and instantly answers what a dependency costs your bundle before you install it.
Buy if your team writes code . it is the industry default with a genuinely free tier.
| Compare | Bundlephobia | Size of npm dependencies | GitHub |
|---|---|---|
| Verdict | Worth it | Worth it |
| Best for | Frontend devs vetting npm packages pre-install | Software teams of any size |
| Who it's not for | Backend/Node-only teams . no frontend bundle to weigh | Non-technical teams that never touch code |
| Privacy | No known public vulnerabilities found in the sources reviewed.² | Strong built-in security tooling, but a May 2026 breach via a malicious VS Code extension and earlier incidents are documented.16 |
| Support quality | No support evidence in sources | No support-quality evidence in sources |
| Public sentiment | Developers and dev-content writers repeatedly recommend it as a pre-install habit; no substantive complaints surfaced in sources.⁷ | Users treat GitHub as the developer standard, but many beginners find Git confusing and Copilot's new usage-based pricing is widely unpopular.10 |
| Biggest gotcha | Checks packages in isolation; tree-shaking in your build may differ¹ | Copilot AI credits are usage-based; users report surprise bills and lock-in. Model costs before enabling org-wide. |