Question 1

How many companies use ExtJS vs Prototype?

Accepted Answer

25,853 companies use ExtJS and 96 companies use Prototype in our database. ExtJS is more widely adopted with 269.3x more companies than Prototype.

Question 2

What percentage of ExtJS users also use Prototype?

Accepted Answer

0% of companies using ExtJS also use Prototype (107 companies). This overlap suggests the tools serve complementary rather than competing purposes.

Question 3

Which industries prefer ExtJS over Prototype?

Accepted Answer

The top industries using ExtJS are Other, Media & Content, E-commerce & Retail, Professional Services, Hospitality & Travel. For Prototype, the top industries are E-commerce & Retail, Media & Content, Other, Professional Services, Education & Learning.

Question 4

Can I get a list of companies using both ExtJS and Prototype?

Accepted Answer

Yes. AgentData tracks 107 companies that use both ExtJS and Prototype. Subscribe to access the full list with emails, tech stacks, and contacts via CSV or API.

	ExtJS	Prototype
Companies	25,853	96
Category	JS Framework	JS Framework
Emails available	54,934	750
Overlap	0% of ExtJS users also use Prototype (107 companies)

ExtJS vs Prototype

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Company adoption

Top industries

Top companies using ExtJS

Top companies using Prototype

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