OPALS is an open-source integrated library system with modules for cataloguing, online public access catalog, circulation, inventory, reports, union catalog and interlibrary loan, equipment and asset management, textbook management, ebook management, streaming video and digital archive management. It is offered for school, academic, special and public libraries.
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OpenAudio is a list of open-source audio software projects, covering apps, plugins and libraries. The intent is to catalog open-source audio apps, plugins such as VSTs, and other resources that are either fully featured or useful examples with non-trivial features. It includes sections for audio plugins, collections, audio apps, development libraries and APIs, code samples and open data resources.
OpenMPT (Open ModPlug Tracker) is a free tracker software for Windows that is a step sequencer supporting many tracker module formats. It can create and play back music, import a wide variety of module formats, and natively edit Impulse Tracker, FastTracker, Scream Tracker and ProTracker module files. It offers a native GUI, VST plugins and ASIO output.
OpenUtau is an open singing synthesis platform described as an open source UTAU successor. It is available as a Windows x64 installer and portable versions, with installation guides for macOS x64 and Linux x64. A beta is referenced for DiffSinger or the arm64 version for macOS.
OpenVideo is a browser extension that detects videos on video streaming platforms and plays them in an ad-free player, allowing users to watch or download videos and movies without ads or popups.
Openwhyd is a community site for discovering and collecting music tracks from YouTube, Soundcloud, Deezer and other services. Users can add tracks to collections, and other users can add, like, comment on and share them. The site also offers a mobile track finder for locating favorite tracks on the go. It is maintained collaboratively under the MIT License.
orDrumbox is a free online drum machine and multi-track step sequencer that runs in a web browser. It offers a step sequencer, automatic rhythm and pattern generation, an integrated software synthesizer, and drum kits and audio samples. Users can create and edit drum patterns and export them as WAV files.
OSINT Dojo is a curated resource directory covering general OSINT and methodology, article publishing platforms, CTFs and quizzes, video streaming platforms, and other uses of OSINT. It also lists archived or deleted content, collection tools, cryptocurrency and dark web resources, and domain, website and networking tools. A link is provided to submit a resource or broken link.
OSMC is a free and open source media center built on Debian Linux and Kodi Media Center. It offers an App Store for customization and plays major media formats from various devices and streaming protocols. Vero V is the project's flagship device, with support for 4K, HDR and HD audio.
ossia score is a free, open-source intermedia sequencer for Windows, macOS and Linux. It sequences audio, video, OSC, MIDI and DMX on an interactive timeline and supports scripting with JavaScript and Faust. It is used for interactive shows, installations and live electronic music.
Regional streaming service from OtakuDesu, focused on films, series, and programmes from supported markets.
Owncast is a free and open source live video and web chat server that works with existing broadcasting software. Users point their live stream at an Owncast server they control. It includes built-in chat with moderation tools and custom emotes, custom branding and domain options, notifications, and fediverse support. It runs on the user's own server with standard streaming protocols.
PandaCD is a file-sharing community where artists share their own music under Creative Commons and artist-permitted licences. Users can pay what they want with cryptocurrency, and the site lists torrents filtered by tags, licence and payment option.
Regional streaming service from Paradise lost.666, focused on films, series, and programmes from supported markets.
ParsaTV combines linear channel streaming with on-demand or catch-up television pages.
A downloadable Windows application by AGGRO CRAB that procedurally generates a variety of parties as a music visualizer. Controls include spacebar to generate a new party, arrow keys to change BPM, and mute to play other beats. The developer states more content and interactive elements are likely planned.
Regional streaming service from PelisForte, focused on films, series, and programmes from supported markets.
Regional streaming service from Pensar Cursos, focused on films, series, and programmes from supported markets.
Petaporon is a browser-based piano roll sequencer for composing music, with songs exportable to mp3. It offers 10 instrument sets and supports saving song data to a text file that can be reloaded by dragging it onto the tool.
Pianobook is a community of composers, producers and music makers sharing free virtual instruments. Founded by Christian Henson in 2018, the site offers a catalogue of sounds and encourages use of the free Decent Sampler plugin. Instrument demos are contributed by the community.
Regional streaming service from Pilot, focused on films, series, and programmes from supported markets.
Regional streaming catalogue for regional films and television dramas, presented through Pinoymoviepedia.
Regional streaming catalogue for regional films and television dramas, presented through Play RTS.
Regional streaming service from player.pl, focused on films, series, and programmes from supported markets.