Free
Bash
Open SourceProgramming Languages
Official GNU Bash shell website with manual and downloads.
bashshellscripting
Official websites, documentation and references for every major language.
25 tools in Programming Languages
Programming Languages
Official GNU Bash shell website with manual and downloads.
Programming Languages
Comprehensive C language and standard library reference.
Programming Languages
Official C# documentation from Microsoft.
Programming Languages
Comprehensive C++ language and standard library reference.
Programming Languages
Official Dart language site with docs, packages and samples.
Programming Languages
Official Elixir language website built on the Erlang VM.
Programming Languages
Type-safe language on the Erlang VM with a friendly compiler.
Programming Languages
Official Go language website with docs, packages and playground.
Programming Languages
Official site for the purely functional programming language.
Programming Languages
Official Java developer portal with documentation, tutorials and downloads.
Programming Languages
MDN reference and guides for JavaScript, maintained by Mozilla.
Programming Languages
High-performance language for technical and scientific computing.
Programming Languages
Official Kotlin language site: docs, playground and standard library reference.
Programming Languages
Official Lua website with reference manual and source.
Programming Languages
Official PHP website with language documentation and downloads.
Programming Languages
Official PowerShell documentation from Microsoft.
Programming Languages
Official website and documentation for the Python programming language.
Programming Languages
Official R project site for statistical computing and graphics.
Programming Languages
Official Ruby language website with documentation and news.
Programming Languages
Official Rust website: documentation, book, crates and tooling.
Programming Languages
Official Scala language site with documentation and downloads.
Programming Languages
Official Solidity language site for Ethereum smart contracts.
Programming Languages
Official Swift.org open-source project site with docs and downloads.
Programming Languages
Typed JavaScript at scale. Official docs, playground and handbook.
Programming Languages
General-purpose language focused on robustness, optimality and clarity.