How many companies use ExtJS vs Site Kit?

19,193 companies use ExtJS and 83,580 companies use Site Kit in our database. Site Kit is more widely adopted with 4.4x more companies than ExtJS.

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

Yes. AgentData tracks companies using both tools. Sign up free to access the full list with emails, tech stacks, and contacts via CSV or API.

Site Kit is used by 83,580companies — 4.4x more than ExtJS (19,193).

19,193 use ExtJS83,580 use Site Kit

	ExtJS	Site Kit
Companies	19,193	83,580
Category	JS Framework	Analytics

Get the full comparison

102,773 companies with emails, tech stacks, and contacts

1,000 lookups · API access · CSV exports

API access

GET /api/v1/tech?name=extjs

From the makers of AgentData

DragApp

AI-powered shared inbox, help desk, and team collaboration — inside Gmail. 200K+ users.

HeyHelp

AI email assistant inside Gmail. Drafts, sorts, follows up.

Oneway

All-in-one customer platform — live chat, email, automations, changelogs & roadmaps with AI.

Access technology comparison data programmatically via REST API or MCP.