Browser Extensions · head to head
BuiltWith vs Violentmonkey
The short version
- Each has a real cost: BuiltWith free tier limited to individual site lookups only; no commercial use or reporting; Violentmonkey smaller script ecosystem compared to Tampermonkey which has larger user base and more available scripts
- They diverge on capability: BuiltWith covers Technology profiling, Violentmonkey covers Userscript support.
Where they differ
Only the attributes on which BuiltWith and Violentmonkey actually diverge.
| Attribute | BuiltWith | Violentmonkey |
|---|---|---|
| Platforms | Web | Chrome, Firefox, Edge |
| Founded | 2007 | 2013 |
Identical on both: starting price (Free), pricing model (Unknown), free tier (Yes), user rating (Not yet rated), category (Browser Extensions).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in BuiltWith
- Technology profiling
- Market research
- Competitor analysis
- Lead generation
Only in Violentmonkey
- Userscript support
- Clean interface
- Cloud sync
- Script editor
- Opera support
Both cover
- Chrome support
- Firefox support
- Edge support
What people use each for
The jobs each tool is most often brought in to do.
BuiltWith
- Technology intelligence for identifying web technologies used by competitor companiesnot Violentmonkey
- Lead generation using technology adoption and spend data signalsnot Violentmonkey
Violentmonkey
- Run open-source userscripts to customize or automate web pagesnot BuiltWith
- Import scripts compatible with Greasemonkey and Tampermonkey formatsnot BuiltWith
- Sync scripts and settings across browsers via Dropbox, OneDrive, Google Drive, or WebDAVnot BuiltWith
- Batch import/export scripts as zip filesnot BuiltWith
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
BuiltWith
- Free tier limited to individual site lookups only; no commercial use or reporting
- Basic plan limited to 2 technologies, 2 keywords, 2 retail reports, and 1 system login
Violentmonkey
- Smaller script ecosystem compared to Tampermonkey which has larger user base and more available scripts
- Less marketing and visibility results in lower adoption compared to more widely-known alternatives
- Community maintenance model means slower feature development compared to commercial alternatives
Pricing, plan by plan
BuiltWith
FreeNo published plan breakdown. See the BuiltWith review.
Violentmonkey
FreeNo published plan breakdown. See the Violentmonkey review.
Which should you pick?
Choose BuiltWith if
- You need technology profiling.
- You want to start without paying.
- You also want market research.
Choose Violentmonkey if
- You need userscript support.
- You want to start without paying.
- You work on Chrome, Firefox, Edge.
- You also want clean interface.
Questions people ask
- Is BuiltWith or Violentmonkey better?
- Neither clearly leads. BuiltWith starts at Free and Violentmonkey at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, BuiltWith or Violentmonkey?
- BuiltWith starts at Free and Violentmonkey at Free.
- Does BuiltWith or Violentmonkey run on more platforms?
- BuiltWith runs on Web. Violentmonkey runs on Chrome, Firefox, Edge.
- Can I use BuiltWith for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is BuiltWith best used for?
- BuiltWith is most often used for technology intelligence for identifying web technologies used by competitor companies, lead generation using technology adoption and spend data signals. Of those, technology intelligence for identifying web technologies used by competitor companies and lead generation using technology adoption and spend data signals are not what Violentmonkey is typically brought in for.
- What can BuiltWith do that Violentmonkey cannot?
- BuiltWith covers Technology profiling, Market research, Competitor analysis, Lead generation. Violentmonkey covers Userscript support, Clean interface, Cloud sync, Script editor. Both handle Chrome support, Firefox support, Edge support.
Answered from the vendors’ own pages
Violentmonkey: Is Violentmonkey open-source?
Yes. Violentmonkey is fully open-source and available on GitHub, making it free to use and community-maintained unlike Tampermonkey which has a larger proprietary ecosystem.
SourceViolentmonkey: What browsers does Violentmonkey support?
Violentmonkey works on browsers with WebExtensions support, including Chrome, Firefox, Edge, and other Chromium-based browsers.
SourceViolentmonkey: How does Violentmonkey compare to Tampermonkey in performance?
Community benchmarks show Violentmonkey uses about 15 to 30 percent less RAM on Chrome compared to Tampermonkey when managing many open tabs.
SourceViolentmonkey: What is the current version of Violentmonkey?
Violentmonkey reached version 2.46.0 as of July 31, 2026, with active ongoing development and regular updates to the open-source project.
Source