Copyfree: resources > works

Copyfree Works

The license status of some works may be more complex than it at first appears here. In some cases, the license status listed for a given work is the "primary" license under which it is distributed. In several cases, parts of the work may be distributed under other licenses -- potentially even non-copyfree licenses.

Where present, descriptions are typically drawn from the claims of the projects themselves, and represent neither claims nor opinions of the Copyfree Initiative. Inclusion here (with or without description) does not constitute, and should not be inferred as, endorsement of any project.

Listings are presented for informational purposes only, and no representation is made as to the accuracy or utility of any information provided. Use at your own risk.

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Agarpermalink

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Agar is a powerful open-source, cross-platform toolkit for graphical applications in C, C++ or Objective-C (bindings to Perl and Ada are also available).

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AngularJSpermalink

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ATLASpermalink

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Automatically Tuned Linear Algebra Software (ATLAS) is an ongoing research effort focusing on applying empirical techniques in order to provide portable performance for a reasonably portable BLAS implementation, with C and Fortran77 APIs.

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Automated Testing Frameworkpermalink

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ATF, or Automated Testing Framework, is a collection of libraries to write test programs in C, C++, and POSIX shell.

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Avianpermalink

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Avian is a lightweight virtual machine and class library designed to provide a useful subset of Java’s features, suitable for building self-contained applications.

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Backbone.jspermalink

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bdd-for-cpermalink

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The bdd-for-c project provides a BDD (behavior driven development) library for the C programming language.

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Boostpermalink

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CCVpermalink

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CCV is the C-based/Cached/Core Computer Vision Library, a modern computer vision library.

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Cellopermalink

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Cello is a library that brings higher level programming to C by acting as a modern, powerful runtime system, making things previously impractical or awkward in C easier.

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cloudlibcpermalink

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Nuxi CloudABI is an application binary interface for UNIX-like operating systems built around the concept of capability-based security, and cloudlibc is a standard C library built on top of CloudABI. It implements almost all features of the C11 standard, but also a large part of POSIX.1-2008.

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Craftpermalink

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Craft is a Minecraft clone for Windows, Mac OS X and Linux. It is written in just a few thousand lines of C and uses modern OpenGL (shaders). Online multiplayer support is included using a Python-based server.

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cURLpermalink

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The cURL project provides a command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET and TFTP, with a myriad of powerful features.

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D3.jspermalink

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D3 is a JavaScript visualization library for manipulating documents based on data using HTML and SVG.

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Datpermalink

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Dat is an open source, decentralized data tool for distributing datasets small and large, inspired by the best parts of Git and BitTorrent.

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Dojo Toolkitpermalink

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Dojo is a toolkit for building high quality desktop and mobile web applications.

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Drollpermalink

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Droll is a dice rolling simulator designed for use with RPGs. It comes with a Ruby library as well as command line and IRC dicebot interfaces.

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Editlinepermalink

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Editline is an autotoolized and libtoolized port of the NetBSD Editline library (libedit). This Berkeley-style licensed command line editor library provides generic line editing, history, and tokenization functions, similar to those found in GNU Readline.

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eggsampler/acmepermalink

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The eggsampler/acme project provides a Go client library implementation for the ACME v2 revision 10 specification, specifically for use with the Let's Encrypt service.

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Electronpermalink

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Electron is a framework for creating native applications with web technologies like JavaScript, HTML, and CSS. It takes care of the hard parts so you can focus on the core of your application.

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Ferretpermalink

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Ferret is an information retrieval library in the vein of Apache Lucene. It was originally a full Lucene port but now uses its own file format and indexing algorithm, though it is still very similar to Lucene. It should still do everything you can do with Lucene. It consists of Ruby bindings and a core C implementation easily used directly and portable to other language bindings.

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flotpermalink

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FossGitpermalink

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FossGit is a Fossil SCM mirroring tool that exports to Git.

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Fossilizepermalink

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Fossilize is an FFI-powered C-extension for Ruby that interfaces with the delta encoding algorithm created by D. Richard Hipp for the Fossil SCM project and an attendant command-line utility. It enables a Ruby program to quickly generate a delta between files and strings, and apply those deltas.

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FreeGLUTpermalink

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FreeGLUT is a free-software/open-source window system independent toolkit for writing OpenGL programs, an alternative to the restrictively licensed OpenGL Utility Toolkit (GLUT) library.

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Functional Javapermalink

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gpspermalink

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The Go Package Solver is an engine for tackling dependency management problems in Go. It is trivial -- about 35 lines of code -- to replicate the fetching bits of go get using gps.

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gradle-git-clone-taskpermalink

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The gradle-git-clone-task project provides a Gradle task to have a directory be the contents of a Git repo at a specified treeish. It will clone it if it doesn't exist already, check out the specified treeish, and fetch if you change the treeish to something that isn't in the current clone.

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GrapheneOS/hardened_mallocpermalink

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GrapheneOS hardened_malloc is a hardened allocator designed for modern systems, with integration into Android's Bionic libc. It can be used externally with musl and glibc as a dynamic library for use on other Linux-based platforms, with more portability / integration as a project goal.

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Hebimathpermalink

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Hebimath is an arbitrary precision arithmetic library. In short, Hebimath is a library capable of performing bignum arithmetic in the same vein as GMP, libtommath, TomsFastMath, MPI, and friends.

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hipkupermalink

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With hipku, you can encode any IP address as a haiku, and decode the haiku to recover the IP address. This can render lengthy, ugly IPv6 addresses in prettier, more easily remembered forms.

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howler.jspermalink

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Howler.js is an audio library for the modern web. It defaults to Web Audio API and falls back to HTML5 Audio. This makes working with audio in JavaScript easy and reliable across all platforms.

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html5libpermalink

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The html5lib Ruby and Python libraries are standards-compliant parsing and serializing HTML libraries.

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Hubbubpermalink

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Hubbub is an HTML5 compliant parsing library, written in C.

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IMathpermalink

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IMath is an arbitrary precision integer and rational arithmetic library.

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imguipermalink

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Immediate Mode Graphical User Interface, or imgui, is a bloat-free UI library for C++ with minimal dependencies.

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International Components for Unicodepermalink

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IUPpermalink

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IUP is a multi-platform toolkit for building graphical user interfaces. It offers a simple API in three basic languages: C, Lua and LED. IUP's purpose is to allow a program source code to be compiled in different systems without any modification.

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Jasminepermalink

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Jasmine is a behavior-driven development framework for testing JavaScript code with no other framework dependencies, no DOM requirements, and a clean, obvious syntax.

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jersey2-metricspermalink

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The jersey2-metrics project offers a Jersey 2 ApplicationEventListener that captures information about request processing in Metrics.

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Joppermalink

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Jop is a gem that adds operations of the J programming language to Ruby arrays.

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JQuerypermalink

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keybase libwebpermalink

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This is a library for building web clients for keybase.

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KnockoutJSpermalink

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kramdownpermalink

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Laravel Cashierpermalink

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Laravel Cashier provides an expressive, fluent interface to Stripe's subscription billing services. It handles almost all of the boilerplate subscription billing code you are dreading writing.

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le-acme2-phppermalink

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The le-acme2-php project provides a LetsEncrypt client library for ACME v2 written in PHP. This library is inspired by yourivw/LEClient and enhanced with some new features.

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LEClientpermalink

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LEClient is a PHP LetsEncrypt client library for ACME v2.

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LevelDBpermalink

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LevelDB is a fast, on-disk, ordered mapping key-value storage library.

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libbsdpermalink

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The libbsd library provides useful (and often more secure) functions commonly found on BSD Unix systems, and lacking on others, making it easier to port projects with BSD Unix origins without needing to embed the same code. It includes code under a number of copyfree licenses, plus some function manpage documentation under (non-copyfree) 4-clause "Original" BSD License terms.

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libcacapermalink

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libcpslpermalink

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The libcpsl project provides a deliberately tiny, standalone, freestanding and non-hosted, dynamic storage library for C and C++, kinda like C++ map, list, vector, etc.

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libcpupermalink

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The libcpu project provides an open source library that emulates several CPU architectures, allowing itself to be used as the CPU core for different kinds of emulator projects. It uses its own frontends for the different CPU types, and uses LLVM for the backend.

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libeditpermalink

The libedit library spin-off from NetBSD code is a non-GPL replacement for the readline library.

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libevpermalink

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The libev project provides a full-featured and high-performance event loop that is loosely modelled after libevent, but without its limitations and bugs.

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LibHydrogenpermalink

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LibHydrogen is a lightweight, secure, easy-to-use crypto library for constrained environments.

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libjinglepermalink

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Libjingle is a set of components to interoperate with Google Talk's peer-to-peer voice and video chat.

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LibLZF [1]permalink

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LibLZF is a very small data compression library. It consists of only two .c and two .h files and is very easy to incorporate into your own programs. The compression algorithm is very, very fast, yet still written in portable C.

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libmacaroonspermalink

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Macaroons are flexible authorization credentials that support decentralized delegation, attenuation, and verification. The libmacaroons library provides an implementation of macaroons.

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libmowglipermalink

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The libmowgli project provides a class library containing performance and usability oriented extensions to C.

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liboqspermalink

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The Open Quantum Safe (OQS) project has the goal of developing and prototyping quantum-resistant cryptography, and liboqs is an open source C library for quantum-resistant cryptographic algorithms.

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libpqxxpermalink

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libpwqualitypermalink

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The libpwquality library provides functions for password quality checking and scoring. It also provides a password generation function, and supports a configuration file. The project's reference utilities include pwmake (CLI password generator) and pwscore (CLI password scoring).

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libsodiumpermalink

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libstdgbpermalink

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The libstdgb project provides a C library of useful Game Boy operations.

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LIBSVMpermalink

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libtomcryptpermalink

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LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.

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libtomfloatpermalink

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LibTomFloat is a library that provides multiple precision floating point arithmetic.

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libtommathpermalink

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LibTomMath is a free open source portable number theoretic multiple-precision integer library written entirely in C.

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libtompolypermalink

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LibTomPoly is a public domain open source library to provide polynomial basis arithmetic. It uses the public domain library LibTomMath (not included) for the integer arithmetic and extends the functonality to provide polynomial arithmetic.

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libtorrentpermalink

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The libtorrent project provides a feature complete C++ library bittorrent implementation focusing on efficiency and scalability that runs on embedded devices as well as desktops. It offers Go, Java, Node.js, and Python bindings as well as C++.

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libuclpermalink

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UCL (universal configuration language) is a JSON-compatible software configuration language, and libucl is its implementation.

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libzahlpermalink

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The libzahl project provides a library for arbitrary size integers, bigint.

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Linenoisepermalink

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Linenoise is a small, self-contained, minimal, zero-config, BSD licensed, alternative to libedit and readline used in Redis, MongoDB, and Android.

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lwe-frodopermalink

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LWE-Frodo (lwe-frodo) is a C cryptographic library for post-quantum key exchange based on the learning with errors (LWE) problem. It is based on the paper "Frodo: Take off the ring! Practical, quantum-secure key exchange from LWE."

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metrics-guicepermalink

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The metrics-guice project provides Guice support for the JVM-based Metrics project by Dropwizard.

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minitestpermalink

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The minitest framework provides a complete suite of testing facilities supporting TDD, BDD, mocking, and benchmarking.

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miniz [1]permalink

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The miniz project provides a lossless, high performance data compression library in a single source file that implements the zlib (RFC 1950) and Deflate (RFC 1951) compressed data format specification standards.

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MirageOSpermalink

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MirageOS is a library operating system that constructs unikernels for secure, high-performance network applications across a variety of cloud computing and mobile platforms.

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MochiKitpermalink

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Montezumapermalink

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Montezuma is a text search engine library for Lisp based on the Ferret library for Ruby, which is itself based on the Lucene library for Java.

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muslpermalink

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The musl project provides a new standard library to power a new generation of Linux-based devices; musl is lightweight, fast, simple, free, and strives to be correct in the sense of standards-conformance and safety.

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NaClpermalink

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NaCl is an easy-to-use high-speed software library for network communication, encryption, decryption, signatures, etc. Its goal is to provide all of the core operations needed to build higher-level cryptographic tools.

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ncursespermalink

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The ncurses (new curses) library is a free software emulation of curses in System V Release 4.0 (SVr4), and more.

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Nethereumpermalink

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Nethereum is a .NET integration library for Ethereum, allowing you to interact with Ethereum clients like eth, geth, or parity using RPC.

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nimxpermalink

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Nimx is a cross-platform GUI framework in Nim.

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node-restifypermalink

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The node-restify package provides a node.js REST framework for web service APIs.

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Nuklearpermalink

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Nuklear is a minimal state graphical user interface single header toolkit written in ANSI C and licensed under public domain with no dependencies. Instead of providing a layered library that tries to abstract over a number of platform and render backends it only focuses on the actual UI.

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Nuklear.nimpermalink

Nuklear.nim is a wrapper for the Nuklear GUI library in the Nim programming language.

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NUnitpermalink

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NUnit is a unit-testing framework for all .Net languages. Initially ported from JUnit, the current production release, version 3.0, has been completely rewritten with many new features and support for a wide range of .NET platforms.

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OpenBLASpermalink

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OpenBLAS is an optimized BLAS library based on (discontinued) GotoBLAS2.

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OpenClonkpermalink

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OpenClonk is a free multiplayer action game in which you control clonks, small but witty and nimble humanoid beings. The game is mainly about mining, settling and fast-paced melees. It is not just a game, but also a versatile 2D game engine that allows the creation of mods. It is the successor of the shareware game series Clonk and thus inherits many of its features.

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particles.jspermalink

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The particles.js library creates graphical particle effects.

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PCRE2permalink

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The PCRE2 library is a set of functions that implement regular expression pattern matching using the same syntax and semantics as Perl 5. PCRE2 has its own native API, as well as a set of wrapper functions that correspond to the POSIX regular expression API. The older PCRE version is not copyfree and no longer receives feature updates.

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PixiJSpermalink

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The aim of PixiJS is to provide a fast, lightweight 2D library that works across all devices. The Pixi renderer allows everyone to enjoy the power of hardware acceleration without prior knowledge of WebGL.

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Port Audiopermalink

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py_cuipermalink

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The py_cui project provides a Python library for creating command line user interfaces.

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pyethereumpermalink

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The pyethereum project provides a Python core library for Ethereum.

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RbNaClpermalink

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recommonmarkpermalink

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As a Docutils compatibility bridge for CommonMark, recommonmark is a Markdown parser library.

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RedRugpermalink

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RedRug is a simple Redcarpet wrapper for common Markdown use cases, provided as a Ruby library and a command line utility.

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Relinepermalink

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Reline is is a pure Ruby implementation compatible with the API of Ruby's stdlib "readline", GNU Readline, and Editline.

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RSpecpermalink

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RSpec is a Behaviour Driven Development framework for Ruby, making TDD productive and fun.

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rust-macaroonspermalink

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Macaroons: bearer credentials with caveats for distributed authorization

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sarskovpermalink

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Sarskov returns statistics on the COVID-19 pandemic in a JSON format or array of hashes that you can use in your Ruby/Rails apps.

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Say Cheese!permalink

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Scintillapermalink

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Scintilla is a free source code editing component. As well as features found in standard text editing components, Scintilla includes features especially useful when editing and debugging source code. These include support for syntax styling, error indicators, code completion and call tips.

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serverless-cf-vars [1] [2]permalink

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Inspired by serverless-pseudo-parameters, the serverless-cf-vars plugin allows you to use Cloudformation pseudo parameters in your serverless.yml, as well as substitute in other variables.

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Sewerpermalink

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Sewer is a Let's Encrypt (ACME) command line and Python library client.

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Sglibpermalink

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Sglib is a C library defining useful macros for manipulating common data structures.

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Sherlockpermalink

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Sherlock parses events written in plain English and returns an object defining a basic event.

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SIEGEpermalink

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The SIEGE 2D game engine is licensed, in its entirety, under the terms of the Simplified BSD License. Artwork, however, is included under a mix of other terms, including (for instance) the Bitstream Vera Fonts Copyright and public domain copyrights.

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Sizzlepermalink

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SOCIpermalink

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SOCI is a database access library for C++ that gives the illusion of embedding SQL queries in regular C++ code, staying entirely within Standard C++.

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sqlboxpermalink

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The sqlbox project allows SQLite3 database access within a file-constrained application process (typically as enacted with pledge(2) on OpenBSD) via a separate process with file-system access.

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stbpermalink

The stb project provides a collection of single-file public domain libraries for C/C++.

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structlogpermalink

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Structured logging in Python is made easy with structlog by augmenting your existing logger. It allows you to split your log entries up into key/value pairs and build them incrementally without annoying boilerplate code.

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SubStringspermalink

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SubStrings is a small C-string handling library for C and C++ designed to make common tasks easier.

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swkpermalink

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The swk software is a minimalist widget kit with support for SDL and X11.

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Tcl/Tkpermalink

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Tk is a graphical user interface toolkit that takes developing desktop applications to a higher level than conventional approaches. Tk is the standard GUI not only for Tcl, but for many other dynamic languages, and can produce rich, native applications that run unchanged across Windows, Mac OS X, Linux and more.

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temporenc-rustpermalink

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The temporenc-rust project provides a Rust library for Temporenc, a binary date/time format.

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termboxpermalink

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The termbox library provides a minimalistic API which helps the programmer write text-based user interfaces.

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TOMLpermalink

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TOML (Tom's Obvious, Minimal Language) aims to be a minimal configuration file format that's easy to read due to obvious semantics. TOML is designed to map unambiguously to a hash table. TOML should be easy to parse into data structures in a wide variety of languages.

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tomsfastmathpermalink

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TomsFastMath is a fast public domain, open source, large integer arithmetic library written in portable ISO C.

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Torque3Dpermalink

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Torque3D is a well-tested, constantly evolving, open source, 3D, C++ game engine.

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Ultimate++permalink

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Ultimate++ is a C++ cross-platform rapid application development framework focused on programmer productivity. It includes a set of libraries (GUI, SQL, etc.), and an integrated development environment.

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Unitypermalink

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Unity is an expressive, extensible, portable, quick, simple unit test framework for C, especially for embedded software development.

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Ur/Webpermalink

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Ur/Web is the Ur statically typed functional programming language, plus a special standard library. It supports dynamic web applications backed by SQL databases. The standard library signature is such that well-typed Ur/Web programs "don't go wrong" in a very broad sense.

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UrlBuilder [1]permalink

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UrlBuilder safely creates valid, properly encoded URL strings with a fluent builder-style API.

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utf8procpermalink

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The utf8proc project provides a small, clean C library that provides Unicode normalization, case-folding, and other operations for data in the UTF-8 encoding, supporting Unicode version 9.0.

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vcfgpermalink

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The vcfg project provides an extended ini syntax config file parser library for the V language.

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Versionizepermalink

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Versionize is a Ruby library providing simple version identification capabilities.

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VIGRApermalink

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Xanadupermalink

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Xanadu is a text-based game engine for the browser.

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XZ Embeddedpermalink

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XZ Embedded is a relatively small decompressor for the .xz file format. It was developed with the Linux kernel in mind, but it is easily usable in other projects too.

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