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Cloud · head to head

Buildah vs curl

Buildah logo

Buildah

Cloud

Build OCI container images without a daemon or a Dockerfile

From
Free
Rated
-
Full reviewWebsite
curl logo

curl

APIs

Command-line tool for transferring data using URLs with wide protocol support

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Buildah linux only, with no native macOS or Windows support; curl open-source with no vendor pricing: curl is free and open-source under GPL 3.0; no subscription or licensing costs apply
  • They diverge on capability: Buildah covers Daemonless builds, curl covers HTTP/HTTPS.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Buildah and curl actually diverge.

Attributes where Buildah and curl differ
AttributeBuildahcurl
Pricing modelOpen source, no licence feeopen-source
PlatformsLinuxLinux, MacOS, Windows, Unix, Mobile
CategoryCloudAPIs
FoundedUnknown1997

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 Buildah

  • Daemonless builds
  • Rootless
  • Dockerfile compatible
  • Scriptable builds

Only in curl

  • HTTP/HTTPS
  • FTP
  • Multiple protocols
  • Universal compatibility
  • Scripting tools
  • Linux support
  • MacOS support
  • Windows support

What people use each for

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

Buildah

  • Building images in CI without a privileged Docker daemonnot curl
  • Producing minimal images with tighter layer control than a Dockerfile givesnot curl
  • Scripted image assembly where a Dockerfile is the wrong abstractionnot curl

curl

  • API Developmentnot Buildah
  • API Gatewaynot Buildah
  • API Testingnot Buildah
  • API Documentationnot Buildah
  • Microservicesnot Buildah

Where each one falls short

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

Buildah

  • Linux only, with no native macOS or Windows support
  • Scriptable builds are powerful but less portable and less familiar than a Dockerfile
  • Narrow by design: it builds images and does not run them, so it needs Podman or another runtime alongside

curl

  • Open-source with no vendor pricing: curl is free and open-source under GPL 3.0; no subscription or licensing costs apply
  • Commercial support costs hidden: site references 'commercial support available' but pricing is not detailed or accessible from homepage
  • No SaaS model: curl is a command-line tool and library; costs are limited to optional commercial support contracts (pricing unknown)
  • Self-support burden: free software means customers rely on community forums or undisclosed commercial support pricing

Pricing, plan by plan

Buildah

Free
  • BuildahFree
    • Full functionality
    • No usage limits
    • Community support

curl

Free
  • Open SourceFree
    • Full curl functionality
    • Community support

Which should you pick?

Choose Buildah if

  • You need daemonless builds.
  • You want to start without paying.
  • You work on Linux.
  • You also want rootless.
Buildah review

Choose curl if

  • You need http/https.
  • You want to start without paying.
  • You work on Linux, MacOS, Windows, Unix, Mobile.
  • You also want ftp.
curl review

Questions people ask

Is Buildah or curl better?
Neither clearly leads. Buildah starts at Free and curl at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Buildah or curl?
Buildah starts at Free and curl at Free.
Does Buildah or curl run on more platforms?
Buildah runs on Linux. curl runs on Linux, MacOS, Windows, Unix, Mobile.
Can I use Buildah for free?
Both have a free tier, so you can try either at no cost before committing.
What is Buildah best used for?
Buildah is most often used for building images in ci without a privileged docker daemon, producing minimal images with tighter layer control than a dockerfile gives, scripted image assembly where a dockerfile is the wrong abstraction. Of those, building images in ci without a privileged docker daemon and producing minimal images with tighter layer control than a dockerfile gives are not what curl is typically brought in for.
What can Buildah do that curl cannot?
Buildah covers Daemonless builds, Rootless, Dockerfile compatible, Scriptable builds. curl covers HTTP/HTTPS, FTP, Multiple protocols, Universal compatibility.

Answered from the vendors’ own pages

Buildah: Is Buildah free?

Yes, open source with no licence fee.

curl: How much does curl cost?

curl is free and open-source software under the GPL 3.0 license. There is no cost to download, use, or modify the software.

Source
Buildah: Do I still need a Dockerfile?

No. Buildah reads Dockerfiles if you have them, but images can be built entirely from shell commands instead.

curl: Is commercial support available for curl?

Yes. The curl website references 'commercial support available,' but pricing and details are not disclosed on the homepage and require visiting the support page.

Source
Buildah: How is Buildah different from Podman?

Buildah builds images; Podman runs them. Podman actually embeds Buildah for its build command, and the two are designed to be used together.

curl: Can I sponsor curl financially?

Yes. The curl website offers an option to 'Sponsor curl financially.' Visitors can donate to support curl development, but the donation link must be accessed through the site's support section.

Source
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