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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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Archiveopteryxpermalink

Archiveopteryx stores email in a database and provides access to it through IMAP and more.

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AttestationServerpermalink

License Reference

AttestationServer is a GrapheneOS project that provides the server code for running an attestation service for use by the Auditor app. The Auditor app uses hardware-based security features to validate the identity of a device along with authenticity and integrity of the operating system

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authsrv9permalink

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btpdpermalink

License Reference

The btpd project provides a service for sharing files over the BitTorrent network protocol. It runs in daemon mode, thus needing no controlling terminal or GUI. Instead, the daemon is controlled by the btcli command line utility, or other programs capable of sending commands and queries through the btpd control socket.

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djbdnspermalink

License Reference

The djbdns software package is a DNS implementation created by Daniel J. Bernstein.

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fractal cellspermalink

License Reference

The fractal cells project provides a componentized, complete hosting and deployment solution for common software infrastructure, running on FreeBSD.

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Freeholdpermalink

License Reference

Freehold is a personal web server for containing and managing your personal data. Use Freehold-Sync to synchronize your desktop files with your freehold instance to make your own open, and secure Dropbox / Google Drive alternative.

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H2Opermalink

License Reference

H2O is a new generation HTTP server that provides quicker response to users with less CPU utilization when compared to older generation of web servers. Designed from ground-up, the server takes full advantage of HTTP/2 features including prioritized content serving and server push, promising outstanding experience to the visitors of your web site.

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Harakapermalink

License Reference

Haraka is an open source SMTP server written in Node.js which provides extremely high performance coupled with a flexible plugin system allowing JavaScript programmers full access to change the behaviour of the server. It is used heavily in some high traffic sites.

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Hato Mail Suitepermalink

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Jenkinspermalink

License Reference

The leading open source automation server, Jenkins provides hundreds of plugins to support building, deploying and automating any project.

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kadnodepermalink

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libtorrentpermalink

License Reference

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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lighttpdpermalink

License Reference

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Mail-in-a-Boxpermalink

License Reference

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

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memventipermalink

License Reference

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Mighttpd2permalink

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Mighttpd2 (called mighty) is a simple but practical HTTP server written in Haskell that handles static files and CGI scripts, and provides reverse proxy and URL rewriting with HTTP redirect.

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Nginxpermalink

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OpenBazaar Serverpermalink

License Reference

The OpenBazaar networking demon can be used to access the OpenBazaar P2P network.

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OpenSMTPDpermalink

License Reference

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extensions. It allows ordinary machines to exchange emails with other systems speaking the SMTP protocol.

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Oragonopermalink

License Reference

Oragono is a modern IRC server written in Go, combining the features of an ircd, a services framework, and a bouncer. It also offers bleeding-edge IRCv3 support.

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Parleypermalink

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Parley was an email service that is intended to make secure email communications more accessible to end-users without requiring a technical background. Its client and server code are now abandonware.

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Polipopermalink

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Pondpermalink

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Pond is forward secure, asynchronous messaging for the discerning.

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PureFTPdpermalink

License Reference

Pure-FTPd is a free, secure, production-quality and standard-conformant FTP server. It doesn't provide useless bells and whistles, but focuses on efficiency and ease of use.

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qmailpermalink

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ShairPortpermalink

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sthttpdpermalink

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The sthttpd project is a maintenance fork of the original thttpd, a "tiny/turbo/throttling" HTTP server.

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TclMonpermalink

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tentpermalink

License Reference

Tent lets you control your data instead of handing it over to service and app providers. Just like email, you choose a Tent provider or can set up your own Tent server.

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Tile38permalink

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Tile38 is an open source, in-memory geolocation data store, spatial index, and realtime geofence. It supports a variety of object types including lat/lon points, bounding boxes, XYZ tiles, Geohashes, and GeoJSON.

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txircdpermalink

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The txircd project provides a modular IRCd built using Twisted, made to be extremely customizable.

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Upspinpermalink

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Upspin is an experimental project to build a framework for naming and sharing files and other data securely, uniformly, and globally: a global name system of sorts. It is not a file system, but a set of protocols and reference implementations that can be used to join things like file systems and other storage services to the name space.

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Urbit [1]permalink

License Reference

Urbit is secure decentralized P2P "personal server platform" that runs on any existing Unix OS. The platform seeks to deconstruct the client-server model in favor of a federated network of personal servers with a consistent digital identity. Its components include Nock and Hoon programming languages.

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X.Orgpermalink

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Yawspermalink

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zkcpermalink

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Zero Knowledge Communications (zkc) is a suite of programs to enable private and secure communications between any number of parties.

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