OpenCelliD is a community-built open database of cell towers and their estimated locations. Contributors record nearby cell identifiers with GPS locations, and the data is processed into cell location estimates. The dataset covers GSM, CDMA, UMTS, LTE and 5G NR networks and is available through an API and CSV downloads, supporting device geolocation without GPS.
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OpenGeoData.NI, also referred to as OpenGeoData Niedersachsen, is a platform for discovering, analyzing and downloading geospatial data. It offers data downloads in formats including CSV, KML, Zip, GeoJSON, GeoTIFF and PNG, provides API links for GeoServices, WMS and WFS, and supports data analysis and the creation of StoryMaps and web maps.
OpenMyFiles is an online file information directory. It provides categorized listings of file formats and associated programs, with top categories including archive, audio, data, raster image, spreadsheet, executable, vector image and video files.
Opensource Builders is a platform that helps users discover open source alternatives to popular proprietary software. It allows users to compare features and capabilities of different open source tools to identify the best options for their needs. The platform is an initiative of Openship, and its interface was adapted from a design by Maze Heart.
A GitHub repository maintained by junaid33 for Opensource.builders, a platform that helps users find and build open-source alternatives to common software. It includes features such as a Skill Builder and guidance for installing skills and getting started.
opensourcealternative.to is a free directory that bills itself as the world's largest collection of open source software alternatives to proprietary products. It hosts over 500 open source alternatives to popular proprietary tools, and reports that over 2 million users have replaced proprietary software with options found on the platform. Listed alternatives include game engines, business suites, observability platforms, communication tools, and databases.
Orange is a cross-platform desktop application for searching local files. It offers tokenization and auto completion, monitors file system changes in real time, and provides millisecond-level search with low memory and CPU resource usage.
Orion is an indexer and search engine for torrent, usenet, and hoster links. It provides an API integrated into Kodi addons and mobile apps for finding links to movies and TV shows. Orion does not host or distribute files and complements debrid services. The database is community-maintained and offers anonymous cryptocurrency payments.
OS Vault is a directory page linking to repositories for downloading Windows versions from Windows 1.0 to Windows 11, including pre-alpha, alpha, beta and RC builds, other Microsoft products such as Office and Plus, and a virtual machine program. It also links to official Microsoft desktop themes for several Windows versions and skins for Windows Media Player 9 Series. The site states it is not an official Microsoft website.
ArcGIS Hub site for discovering, analyzing and downloading data. It supports downloads in CSV, KML, Zip, GeoJSON, GeoTIFF and PNG formats, provides API links for GeoServices, WMS and WFS, and offers analysis with charts and thematic maps.
OSS Gallery is a crowdsourced list of open-source projects on the internet. The site features projects with star counts and short descriptions, including Dub, shadcn/ui, freeCodeCamp, and roadmap.sh. Individual project pages present summaries such as Dify's LLM app development platform and LibreChat's ChatGPT clone.
OSS Gallery is described as a crowdsourced list of the best open-source projects on the internet. It is built with the Dub TypeScript SDK, which creates short links for each project page and displays real-time click analytics.
OSSSoftware helps discover software alternatives, open source projects, or replacement apps.
The OWASP Cheat Sheet Series is a collection of cheat sheets on specific application security topics, created by application security professionals with expertise in those topics. The site hosts all of the project's cheat sheets and offers downloads of the site and an ATOM feed for updates.
OwnTV is a native Android TV IPTV player built with Kotlin and Jetpack Compose for TV. It uses libmpv (FFmpeg) and ExoPlayer (Media3) playback engines and accepts user-supplied Xtream logins, M3U playlists or Stalker/Ministra portals. It ships no channels, playlists, subscriptions or streams, and supports features including EPG, catch-up TV, profiles and downloads.
This page provides a guide for downloading paid applications from the Microsoft Store. It notes the method only works for apps that verify ownership via a Microsoft account, not those using external license checkers. The guide outlines steps including retrieving the app's appxbundle or msixbundle file, using the WSAppBak tool, and requires the Wiztree utility.
PairDrop is an open-source, peer-to-peer cross-platform file transfer tool. It allows users to instantly share images, videos, PDFs and links with people nearby, with no setup or signup required. The service requires JavaScript to function and supports multiple languages.
Pandoc is a universal document converter that converts files between markup formats. It supports many input and output formats, including Markdown, HTML, EPUB and Microsoft Word docx, and offers markdown syntax extensions and automatic citations and bibliographies. Pandoc is open-source software maintained by volunteers.
Patchy is a temporary file uploader that is easy to host, described as a replacement for Uguu. It uses a low amount of memory, works without JavaScript, and can be used from other software such as Chatterino2 and ShareX. It is written primarily in Crystal.
patchy.moe is a temporary file uploader service. It has a maximum upload size of 4GiB, and all hosted files expire 14 days after upload. As of the snapshot date, the service had 1392 hosted files, operates alternative domains including ayaya.beauty and patchy, and provides an abuse contact email. It also offers configurable uploader settings, upload history tracking and an admin panel.
Patrins is a file hosting platform for uploading, organizing and sharing files. Uploads can be made through a dashboard, drag and drop, CLI or API, and each file gets a shareable page with inline previews. It also offers folder organization, temporary uploads that expire, WebDAV drive mounting, upload widgets and per-file analytics.
PDALife is a site offering downloads of applications for Android and iOS, described as a replacement for the Play Store and the App Store. It lists games and programs with version numbers and mod variants.
PDBj, the Protein Data Bank Japan, maintains the global PDB/BMRB/EMDB archives of macromolecular structures. Its website provides integrated tools for searching and analyzing PDB data, along with data deposition, standard format downloads, molecular viewers, derived databases and an educational service. PDBj is a member of the Worldwide PDB.
A web tool for editing PDF bookmarks. Users select a PDF, add or edit chapter, section and subsection bookmarks, and import bookmarks via keyboard shortcuts. It also includes a merge feature where files are dragged to reorder them before merging.