OK Video is a video platform for creator uploads, channels, livestreams, and on-demand viewing.
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Okular is a document viewer that reads PDF documents, comics and EPub books, browses images and visualizes Markdown documents. It supports additional formats including DjVU, and lets users annotate PDFs and view and verify digital signatures embedded in PDFs.
Steve's Computer Collection is a website dedicated to the preservation and display of vintage computer systems. It presents old, rare and antique computers and invites browsing of old computer advertisements. The site also offers a view of 150 old computers at the same time.
Emulator-style archive browser for viewing old websites through historical browsers.
Olympicstreams lists live fixtures and viewing pages across supported sports and competitions.
ÖNB-API-IIIF enables you to view historical books, newspapers, postcards and create collections with them.
Online EXIF Viewer is a browser-based tool for viewing EXIF data and image metadata. It shows camera and lens details, shutter speed, aperture, ISO, capture time and GPS location when present. It also reads IPTC and XMP metadata, including captions, keywords and creator credits. Metadata can be copied, downloaded or shared through a public link.
ooh.directory is a collection of blogs organised by topic. Visitors can explore categories, search blog details, browse random blogs or view recently updated blogs. The site is run by Phil Gyford and started in 2022.
OpenBenches is a platform that hosts a map of public memorial benches. As of the listed data, it includes 44,306 user-added benches, and allows users to search bench inscriptions, view random bench listings, and add new bench entries to the map.
OpenSyllabus is a non-profit archive of higher education teaching materials. It holds a collection of 32.9 million college syllabi from thousands of schools, providing curriculum overviews to support curricular innovation, lifelong learning, and student success. The project aims to expand open education, with most of its tools available for free. Additional offerings include an exploration tool for teaching across syllabi, a course transfer lookup tool, a navigable view of anglophone higher education, a print store for large prints of top-assigned academic titles, and a blog with news and data stories.
OpenUserJS is a site for downloading userscripts to enhance your browser. Its home page lists userscripts with names, install counts, ratings and update dates, including tools to bypass link shorteners, block YouTube autoplay previews, view manga pages online and widen GitHub pages. The site states that continued use constitutes agreement to its Terms of Service and Privacy Policy.
A framework focused on gathering information from free tools or resources, intended to help people find free OSINT resources. It was originally created from an information security point of view.
OsmAnd~ is an open source offline world map application based on OpenStreetMap, available from F-Droid. It offers map viewing, GPS navigation without an internet connection, route planning and GPX track recording. The listing notes anti-features including non-free assets and tracking via an installation ID sent with map download requests.
Oxfordshire Open Data provides a place for the public, researchers and developers to access, analyse and share information about the area. Data may be viewed, re-used and downloaded under licence. The site offers browsing by categories including population, finance, economy, education, elections, environment, food, health, parks, planning, public safety, land and property, and transportation.
Ozone3D.Net offers free 3D graphics software and tutorials, including a set of GPU benchmarks and utilities. The listed tools include GPU Caps Viewer, a freeware utility describing graphics card capabilities, memory and OpenGL support, and GPU Shark, a GPU monitoring utility for NVIDIA and AMD/ATI cards. FurMark is a Freeware OpenGL 2 benchmark stressing vertex and pixel processors through fur rendering.
PabloDraw is an Ansi/Ascii text and RIPscrip vector graphic art editor and viewer with multi-user capabilities. It uses the Eto.Forms cross-platform framework for native UI on Windows, macOS and Linux, and Version 3.3 is described as still in alpha.
Browse live fixtures and viewing pages across supported sports through Palco.
Paperboy is a world newspaper directory that indexes more than 11,000 newspapers from around the world. Readers can browse publications by country, US state or city, and view daily front pages from leading US and UK newspapers. The site also offers press analysis features.
Parakeet-TDT-0.6b-V2 is a Hugging Face Space from nvidia that converts uploaded audio files or microphone recordings into written text, splitting the output into timestamped segments. Each segment can be viewed, played back, and downloaded.
Paste.to is a public paste service for sharing text, code and documents through short, shareable URLs, with account-based management and flexible expiry controls. Content is viewable by anyone with the link; a password can be set for private pastes. It requires a modern browser and notes that its connection is insecure.
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.
PDF4QT is an open source PDF editor for Windows and Linux under the LGPLv3 license. It offers applications for viewing, editing and rendering PDF documents, plus a C++ library and command line tool for developers. Features include digital signature verification, annotation editing and page organization such as merging and splitting.
PeaZip is a free archive manager utility for BSD, Linux, macOS and Windows, offered as an open-source alternative to proprietary software and also available as a portable package not requiring installation. It works with 200+ archive types and variants, handles spanned archives, and provides a file manager with search, duplicate file detection and integrated viewers.
peestream organises movies and television series into browser-based viewing pages with genre browsing and watchlist tools.