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Developer building blocks

dlib

A long-standing C++ and Python toolkit for machine learning and computer vision, such as face detection.

What it does

dlib is a code library full of machine learning tools and algorithms for solving real-world problems. It is written in C++ and can also be used from Python.

Programmers build it into their own software. It comes with many example programs to learn from.

Its license is very permissive: the README says you can use it however you like, even in closed-source commercial software.

Who it's for

Programmers building software that needs machine learning or image analysis.

Can I use it without coding?

Developers only. A code library that needs a compiler or Python to use. New to this? Start here.

Can I run it?

Cost
FreeNothing to pay or sign up for.
API key
Not needed

Try it

Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?

Before you install

  • Only download from the official GitHub page. Copies with similar names exist for many popular projects.
  • License (BSL-1.0): Read the license on the GitHub page before using it for business.
  • More on staying safe

Where people are talking about it