Bundlephobia vs Sitebulb: Which Should You Choose in 2026?
Choosing between Bundlephobia and Sitebulb comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
By Toolradar Team · Last updated February 22, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Bundlephobia
Analyze the size and performance cost of npm dependencies for your JavaScript bundle.
Best for you if:
- • You need something completely free
- • You need api tools features specifically
- • Analyzes the size of npm packages.
- • Helps optimize JavaScript bundle performance.
Sitebulb
Revolutionary website crawler for better SEO audits, offering both Desktop and Cloud solutions.
Best for you if:
- • You want the higher-rated option (7.7/10 vs 0.0/10)
- • You need seo tools features specifically
- • Conducts comprehensive technical SEO audits with prioritized issues and actionable insights.
- • Offers both Desktop and Cloud crawling, including an Evergreen Chromium JavaScript renderer to mimic Googlebot.
| At a Glance |  Bundlephobia |  Sitebulb |
|---|---|---|
Price | Free | Free + Paid |
Best For | API Tools | SEO Tools |
Rating | —/100 | 77/100 |
| Feature | Bundlephobia | Sitebulb |
|---|---|---|
| Pricing Model | Free | Freemium |
| Editorial Score | — | 77 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | API ToolsTesting & QA | SEO ToolsWeb Analytics |
How Bundlephobia and Sitebulb Compare
Bundlephobia
Analyze the size and performance cost of npm dependencies for your JavaScript bundle.
Free
Sitebulb
Revolutionary website crawler for better SEO audits, offering both Desktop and Cloud solutions.
Free tier available · 77/100 score
Bundlephobia is a api tools tool. Sitebulb is in seo tools.
Who Should Use What?
On a budget?
Bundlephobia is free. Sitebulb is freemium.
Go with: Bundlephobia
Want the highest-rated option?
Sitebulb scores 77/100. Bundlephobia is unrated.
Go with: Sitebulb
Value user reviews?
Neither has user reviews yet.
Go with: Sitebulb
3 Questions to Help You Decide
What's your budget?
Bundlephobia is free. Sitebulb is freemium. Go with Bundlephobia if free matters most.
What's your use case?
Bundlephobia is a api tools tool. Sitebulb is in seo tools. Pick the category that matches your needs.
How important are ratings?
Not all tools have been rated yet.
Key Takeaways
Sitebulb
- Higher score: 77/100 vs unrated
- Free tier available
- Our pick for this comparison
Bundlephobia
- Completely free
- Better fit for api tools
The Bottom Line
Sitebulb (77/100) is our pick. That said, Bundlephobia is free — hard to beat on price.
Frequently Asked Questions
Is Bundlephobia or Sitebulb better?
Sitebulb scores 77/100 in our evaluation. Bundlephobia is free and Sitebulb is freemium.
What are Bundlephobia and Sitebulb used for?
Bundlephobia: Analyze the size and performance cost of npm dependencies for your JavaScript bundle.. Sitebulb: Revolutionary website crawler for better SEO audits, offering both Desktop and Cloud solutions..
What does Bundlephobia cost vs Sitebulb?
Bundlephobia is completely free. Sitebulb is freemium (free tier + paid plans). Visit their websites for detailed pricing.