Drop any file to identify it
We read file headers, not extensions. Nothing gets uploaded.
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Let go to identify this file.
Couldn't identify this file
What is it
A text file containing instructions for building a Docker container image. Dockerfiles define the base OS, installed software, configuration, and startup commands for containerised applications. No file extension — the filename is literally 'Dockerfile'.
Technical details
Safety
What opens it
Any text editor
VS Code
Related formats