Htmx vs Alpine.js

Htmx lands on Depends, and Alpine.js lands on Worth it.

Htmx

Depends

Confidence: Medium

Adopt it if you run server-rendered CRUD apps and want interactivity without a React-style SPA stack . it is free, so cost is never the issue.

Worth it

Confidence: Medium

Alpine.js is a free, lightweight JavaScript framework ideal for adding modest interactivity to server-rendered pages without a full SPA stack.

Htmx versus Alpine.js
Compare	Htmx	Alpine.js
Verdict	Depends	Worth it
Best for	Server-rendered CRUD and admin apps	Server-rendered apps needing light interactivity
Who it's not for	Apps needing rich client state: editors, dashboards, offline-first	Complex SPAs with heavy state . use React or Vue
Privacy	Maintained OSS with a published security policy; no CVEs found in reviewed sources, but CSP compatibility is a known friction point.¹⁰	Two CVEs appear in public databases; a CSP build exists for strict content-security policies.
Support quality	No vendor; community-only evidence found.	Active GitHub community, no official support
Public sentiment	Developer opinion is polarized: fans praise the simplicity, code reduction, and speed, while skeptics report a complexity ceiling and awkward security integration.^⁶	Users love Alpine for lightweight HTML interactivity but flag performance limits, CSP friction, and Vue comparisons for bigger sites.¹⁴
Biggest gotcha	Inline hx- attributes clash with strict CSP; you will need nonce/hash configuration work¹⁰	Default build uses eval; strict-CSP sites must adopt the separate CSP build