Is Blacksmith or HTMX better?

Neither clearly leads. Blacksmith starts at Free and HTMX at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Blacksmith or HTMX?

Blacksmith starts at Free and HTMX at Free.

Does Blacksmith or HTMX run on more platforms?

Blacksmith runs on GitHub Actions, Linux, Windows, macOS. HTMX runs on Web.

Can I use Blacksmith for free?

Both have a free tier, so you can try either at no cost before committing.

What is Blacksmith best used for?

Blacksmith is most often used for replacing github actions runners with faster, cheaper infrastructure, accelerating ci build times for organizations with heavy ci load, reducing cloud spend on github actions by 60% or more, supporting arm architecture builds without github runners. Of those, replacing github actions runners with faster, cheaper infrastructure and accelerating ci build times for organizations with heavy ci load are not what HTMX is typically brought in for.

What can Blacksmith do that HTMX cannot?

Blacksmith covers Bare metal runners, Multiple OS support, ARM support, Docker layer caching. HTMX covers AJAX requests, HTTP verb support, DOM targeting, Swap strategies.

Developer Tools · head to head

Blacksmith vs HTMX

Blacksmith

Developer Tools

2x faster GitHub Actions with 60% cost savings

From: Free
Free plan: Yes

Full review Website

HTMX

Web Development

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

From: Free
Free plan: Yes

Full review Website

The short version

Each has a real cost: Blacksmith per-minute pricing model requires estimating usage to predict costs; HTMX best suited for server-rendered architectures, not pure client-side SPAs
They diverge on capability: Blacksmith covers Bare metal runners, HTMX covers AJAX requests.
Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Blacksmith and HTMX actually diverge.

Attributes where Blacksmith and HTMX differ
Attribute	Blacksmith	HTMX
Pricing model	Unknown	open-source
Platforms	GitHub Actions, Linux, Windows, macOS	Web
Category	Developer Tools	Web Development

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 Blacksmith

Bare metal runners
Multiple OS support
ARM support
Docker layer caching
Sticky disks
GitHub Actions observability
Free tier
Static IPs

Only in HTMX

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

What people use each for

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

Blacksmith

Replacing GitHub Actions runners with faster, cheaper infrastructurenot HTMX
Accelerating CI build times for organizations with heavy CI loadnot HTMX
Reducing cloud spend on GitHub Actions by 60% or morenot HTMX
Supporting ARM architecture builds without GitHub runnersnot HTMX

HTMX

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

Where each one falls short

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

Blacksmith

Per-minute pricing model requires estimating usage to predict costs
macOS M4 pricing ($0.08/min) is significantly higher than GitHub Actions
Docker layer caching and sticky disks are paid add-ons at $0.50/GB/mo
Static IP add-on costs $100/IP/mo

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

Pricing, plan by plan

Blacksmith

Free

Ubuntu x64$0.004/minute
- 3,000 free minutes per month
- 2x faster hardware
- 4x faster cache downloads
Ubuntu ARM$0.0025/minute
- 3,000 free minutes per month
- 2x faster hardware
- 4x faster cache downloads
Windows x64$0.008/minute
- 3,000 free minutes per month
- 2x faster hardware
- 4x faster cache downloads
macOS M4$0.08/minute
- 3,000 free minutes per month
- 2x faster hardware
- 4x faster cache downloads

HTMX

Free

No published plan breakdown. See the HTMX review.

Which should you pick?

Choose Blacksmith if

You need bare metal runners.
You want to start without paying.
You work on GitHub Actions, Linux, Windows, macOS.
You also want multiple os support.

Blacksmith review

Choose HTMX if

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

HTMX review

Questions people ask

Is Blacksmith or HTMX better?: Neither clearly leads. Blacksmith starts at Free and HTMX at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Blacksmith or HTMX?: Blacksmith starts at Free and HTMX at Free.
Does Blacksmith or HTMX run on more platforms?: Blacksmith runs on GitHub Actions, Linux, Windows, macOS. HTMX runs on Web.
Can I use Blacksmith for free?: Both have a free tier, so you can try either at no cost before committing.
What is Blacksmith best used for?: Blacksmith is most often used for replacing github actions runners with faster, cheaper infrastructure, accelerating ci build times for organizations with heavy ci load, reducing cloud spend on github actions by 60% or more, supporting arm architecture builds without github runners. Of those, replacing github actions runners with faster, cheaper infrastructure and accelerating ci build times for organizations with heavy ci load are not what HTMX is typically brought in for.
What can Blacksmith do that HTMX cannot?: Blacksmith covers Bare metal runners, Multiple OS support, ARM support, Docker layer caching. HTMX covers AJAX requests, HTTP verb support, DOM targeting, Swap strategies.

Answered from the vendors’ own pages

Blacksmith: How much do Blacksmith runners cost compared to GitHub Actions?

Blacksmith offers 60-75% cost savings depending on OS. Ubuntu x64 costs $0.004/min vs GitHub at $0.012/min. All plans include 3,000 free minutes monthly.

Source

HTMX: How big is the HTMX JavaScript library?

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

Source

Blacksmith: Can I use Docker layer caching with Blacksmith?

Yes, Docker layer caching is available as an add-on at $0.50/GB/mo. Managed Docker layer persistence is included with the base service.

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

Blacksmith: What is the SLA for Enterprise plans?

Enterprise Blacksmith plans include a 99.9% SLA guarantee along with 24/7 priority support, dedicated Slack channels, white-glove onboarding, and CI optimization support.

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

Blacksmith vs HTMX

Blacksmith

HTMX

The short version

Where they differ

What each one covers

Only in Blacksmith

Only in HTMX

What people use each for

Blacksmith

HTMX

Where each one falls short

Blacksmith

HTMX

Pricing, plan by plan

Blacksmith

HTMX

Which should you pick?

Choose Blacksmith if

Choose HTMX if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Blacksmith

More on HTMX

Keep looking

Other head to heads