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Web Development · head to head

HTMX vs Penpot

HTMX logo

HTMX

Web Development

Lightweight JavaScript library enabling AJAX, WebSockets, and server-sent events in HTML

From
Free
Rated
-
Full reviewWebsite
Penpot logo

Penpot

Developer Tools

Open source design and prototyping platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: HTMX best suited for server-rendered architectures, not pure client-side SPAs; Penpot smaller user base and community compared to Figma means fewer templates and resources
  • They diverge on capability: HTMX covers AJAX requests, Penpot covers Vector editing.

Where they differ

Only the attributes on which HTMX and Penpot actually diverge.

Attributes where HTMX and Penpot differ
AttributeHTMXPenpot
Pricing modelopen-sourceUnknown
PlatformsWebWeb, Windows, macOS, Linux
CategoryWeb DevelopmentDeveloper Tools
FoundedUnknown2021

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 HTMX

  • AJAX requests
  • HTTP verb support
  • DOM targeting
  • Swap strategies
  • WebSocket support
  • Server-sent events
  • Out-of-band updates

Only in Penpot

  • Vector editing
  • Interactive prototyping
  • Design systems
  • Components & libraries
  • Real-time collaboration
  • SVG support
  • CSS Grid & Flexbox
  • Code export

What people use each for

The jobs each tool is most often brought in to do.

HTMX

  • Building interactive applications without JavaScript framework complexitynot Penpot
  • Server-rendered applications requiring dynamic updatesnot Penpot
  • Adding interactivity to existing server-side applicationsnot Penpot
  • Hypermedia-driven applications using HTML-first approachesnot Penpot

Penpot

  • UI/UX designnot HTMX
  • Prototypingnot HTMX
  • Design systemsnot HTMX
  • Developer handoffnot HTMX
  • Open source projectsnot HTMX

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

HTMX

  • Best suited for server-rendered architectures, not pure client-side SPAs
  • Limited client-side state management capabilities compared to frameworks
  • Smaller ecosystem with fewer third-party libraries and tools
  • Learning curve for developers from JavaScript framework backgrounds

Penpot

  • Smaller user base and community compared to Figma means fewer templates and resources
  • Self-hosting requires Linux server and Docker knowledge for technical setup
  • Real-time collaboration features may have performance issues with very large design files

Pricing, plan by plan

HTMX

Free

No published plan breakdown. See the HTMX review.

Penpot

Free
  • FreeFree
    • Cloud-based design
    • Real-time collaboration
    • Components and variants
  • Unlimited$7/month
    • All free features
    • Priority support
    • Advanced cloud features
  • Enterprise$950/month
    • Custom enterprise features
    • Dedicated support
    • Advanced security

Which should you pick?

Choose HTMX if

  • You need ajax requests.
  • You want to start without paying.
  • You also want http verb support.
HTMX review

Choose Penpot if

  • You need vector editing.
  • You want to start without paying.
  • You work on Web, Windows, macOS, Linux.
  • You also want interactive prototyping.
Penpot review

Questions people ask

Is HTMX or Penpot better?
Neither clearly leads. HTMX starts at Free and Penpot at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, HTMX or Penpot?
HTMX starts at Free and Penpot at Free.
Does HTMX or Penpot run on more platforms?
HTMX runs on Web. Penpot runs on Web, Windows, macOS, Linux.
Can I use HTMX for free?
Both have a free tier, so you can try either at no cost before committing.
What is HTMX best used for?
HTMX is most often used for building interactive applications without javascript framework complexity, server-rendered applications requiring dynamic updates, adding interactivity to existing server-side applications, hypermedia-driven applications using html-first approaches. Of those, building interactive applications without javascript framework complexity and server-rendered applications requiring dynamic updates are not what Penpot is typically brought in for.
What can HTMX do that Penpot cannot?
HTMX covers AJAX requests, HTTP verb support, DOM targeting, Swap strategies. Penpot covers Vector editing, Interactive prototyping, Design systems, Components & libraries.

Answered from the vendors’ own pages

HTMX: How big is the HTMX JavaScript library?

HTMX is only 16 kilobytes minified and gzipped with zero external dependencies.

Source
Penpot: Is Penpot really free?

Yes. Penpot is completely free with no feature gates. The open-source version can be self-hosted on your own infrastructure for zero cost beyond server expenses.

Source
HTMX: Can HTMX work with JSON APIs?

While HTMX is optimized for HTML responses, it can work with JSON through additional configuration and response handling.

Source
Penpot: Can I self-host Penpot?

Yes. Penpot can be self-hosted on your own infrastructure with no licensing costs. Organizations with specific privacy or governance needs can run Penpot on their own servers.

Source
HTMX: Does HTMX support real-time features like WebSockets?

Yes, HTMX includes support for WebSockets and server-sent events for real-time bidirectional communication.

Source
Penpot: What are the paid plans if I use Penpot cloud?

Penpot's cloud service offers a free tier, Unlimited plan at $7 per user per month for professionals and medium teams, and Enterprise starting at $950 per month for larger organizations.

Source
Penpot: What platforms does Penpot support?

Penpot runs in the browser, so it works on Windows, Mac, Linux, and any OS with a web browser. No platform-specific downloads required.

Source
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