E
ExtJS
vs
K
klaviyo

ExtJS vs klaviyo

ExtJS is used by 25,853companies — 47.6x more than klaviyo (543). 88 companies use both.

25,853 use ExtJS543 use klaviyo88 use both170,565 emails available

Side-by-side comparison

ExtJSklaviyo
Companies25,853543
CategoryJS Frameworkemail_marketing
Emails available169,663902
Overlap0% of ExtJS users also use klaviyo (88 companies)

Company adoption

ExtJS25,853klaviyo543

Top industries

ExtJS

Other2685
Media & Content2091
E-commerce & Retail1461
Professional Services1403
Hospitality & Travel1096

klaviyo

E-commerce & Retail260
Healthcare & Life Sciences21
Other15
Hospitality & Travel12
Education & Learning10

Top companies using ExtJS

NetExambuy-learning.qlik.comINTEGRITY WebDNSwebdns.integrity.huECMA-GLO007 - Synology RackStationmembers.ecma-international.orgICEtmcbonds.comCONTPAQi CFDI Facturación en líneacfdi.com.mx

Top companies using klaviyo

Rao's Specialty Foodsraos.comOktoberfestwinkeloktoberfestwinkel.nlmayday.healthmaydayhealth-shop.fourthwall.comSC TOP PLAST SRLtop-plast.roThe Op Games | Board Games, Puzzles, Dice and More!usaopoly.com

Get the full comparison

26,396 companies with emails, tech stacks, and contacts

Start free →

1,000 lookups · API access · CSV exports

API access

GET /api/v1/tech?name=extjs

AgentData picks

DragApp

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

Try DragApp free →

HeyHelp

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

Try HeyHelp free →

Oneway

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

Try Oneway →

Related comparisons

Atlassian Jira vs ExtJSCompare →Atlassian Jira vs klaviyoCompare →ExtJS vs MagentoCompare →klaviyo vs MagentoCompare →ExtJS vs MethodeCompare →klaviyo vs MethodeCompare →

View individually

E
ExtJS
Companies using ExtJS→
K
klaviyo
Companies using klaviyo→

Frequently asked questions

Need this data via API?

Access technology comparison data programmatically via REST API or MCP.

API docs →