Compare software

Railpack vs ko: catalog facts
Railpack	ko
Free Free and open source under the MIT licence.	Free Free to use; the source is published on GitHub.
Windows, Command line	Command line
Builds images without writing a Dockerfile Supports many languages and popular static site frameworks	No Dockerfile or Docker installation needed Multi-platform builds and SBOMs by default
Requires BuildKit to build images Automatic detection may need config overrides for unusual projects	Only for Go applications Not suited to images needing cgo or OS packages
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.