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 lands on Worth it, and DebugBear lands on Depends.
Any frontend developer should keep Bundlephobia open . it is free and instantly answers what a dependency costs your bundle before you install it.
Buy it if you actively optimize page speed and need continuous Core Web Vitals monitoring with CI checks.
| Compare | Bundlephobia | Size of npm dependencies | DebugBear |
|---|---|---|
| Verdict | Worth it | Depends |
| Best for | Frontend devs vetting npm packages pre-install | Teams continuously tuning Core Web Vitals |
| Who it's not for | Backend/Node-only teams . no frontend bundle to weigh | One-off speed checks . free Lighthouse suffices |
| Privacy | No known public vulnerabilities found in the sources reviewed.² | No known public vulnerabilities found in the sources reviewed.10 |
| Support quality | No support evidence in sources | No support 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 | Praise centers on detailed, mostly free speed insights; independent negative reviews are absent from sources reviewed.12 |
| Biggest gotcha | Checks packages in isolation; tree-shaking in your build may differ¹ | Guess: pricing tiers and per-page limits aren't surfaced in reviewed sources . confirm before committing⁹ |