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Libraries.io is a free service that collects publicly available open source package information scraped from the internet. Users can search packages by license or language and explore new, trending or popular packages. The data is not validated, corrected or curated for accuracy. API access is free to registered users, subject to a rate limit.
Library and Archives Canada portal for records, archives, genealogy, publications, and collections.
Online public access catalog of the Library of Congress.
Search an online collection of books, documents, media and archival records.
Libre.fm is a music service that lets users keep track of their music listening habits. Music player apps and a browser extension report song title, artist and album to Libre.fm, a process called scrobbling, and the data appears on the user's profile and the community page. The project is open source and was founded in 2009.
LibreOffice is a free, open source office suite developed by a community and a project of The Document Foundation. It includes six tools: Writer for word processing, Calc for spreadsheets, Impress for presentations, Draw for diagrams and 3D illustrations, Base for databases, and Math for formulas. The project offers no-cost downloads and community assistance rather than technical support from the foundation.
LibrePCB is a free, open-source, cross-platform electronic design automation suite for drawing schematics and designing printed circuit boards. It offers a schematic editor and board editor, a semantic library concept, human-readable file formats, and optional library manager and PCB fabrication service. A command-line tool supports headless checks and data exports. It is available in 15 languages and can be used fully offline.
LibreTube is an alternative frontend for YouTube on Android. It is free and open source under GPL-3.0 and does not use Google services or save user data. It supports subscriptions, SponsorBlock and video chapters, and Google account login is not supported.
LibreWolf is an independent custom version of Firefox aimed at privacy, security and user freedom. It uses privacy and security oriented settings and patches to increase protection against tracking and fingerprinting, and aims to remove telemetry, data collection and annoyances while disabling anti-freedom features such as DRM. uBlock Origin is included.
Search an online collection of books, documents, media and archival records.
Search an online collection of books, documents, media and archival records.
Browse digitized texts, images, archives and cataloged cultural materials.
License plate lookup service for searching vehicle records and ownership-related public data.
Liftosaur is a workout tracker and planner for iOS, Android and the web. Users build custom lifting programs with the text-based Liftoscript language or follow built-in routines such as GZCLP, 5/3/1 and PPL. The app logs sets and reps, tracks progress and stores data in the cloud. A web editor allows programs to be edited on desktop and shared by link.
An interactive world map of light pollution that overlays data including NASA Black Marble VIIRS, sky brightness, aurora prediction, observatories and clouds, with SQM/SQC measurements contributed by users. It offers tools such as distance measurement, sky brightness simulation and a search for the closest dark site.
Lighthouse Reports is a non-profit based in the Netherlands that leads complex transnational investigations. It blends traditional investigative journalism methods such as freedom of information requests with emerging techniques like open source investigation and data science, and works with media partners to publish public interest journalism.
A community project providing free real-time lightning maps and apps, with lightning data supplied by Blitzortung.org and contributors. It lets users see lightning strikes in real time across the planet and access maps of former thunderstorms, with regional views for Europe, Germany, USA and Oceania.
Lightyear.fm is a browser-based visualization that depicts radio broadcasts leaving Earth at the speed of light and traveling outward into space. Scrolling away from Earth shows how far past hits have traveled, with more distant points carrying older music. It includes planet and star data and notes that many stars were removed for display purposes and radii are not accurate.
Find digitized publications and collection items through an online library.
Limitless is a Pokémon TCG resource aiming to provide content and information for competitive Pokémon players. It lists recent and upcoming tournaments, City Leagues, decklists and top decks with usage percentages, plus posts. It also covers the Limitless Network Tournament Platform and databases for One Piece and Pokémon Pocket.
Lindy is described as an AI employee that connects to tools and performs work for a team. The page lists integrations with services such as Gmail, Slack and Notion and mentions skills for research, data analysis, decks and dashboards. According to the pricing page, the Team plan starts at $29.99 per month and includes 3,000 credits every month.
Linear Digressions is a podcast series covering machine learning and AI topics, with episodes such as "LLM as a Judge," a cross-post on AI and podcasting from the Harvard Data Science Review, and a benchmark installment on ExploitGym. One episode examines mechanistic interpretability, described as an approach that opens the model itself to trace why it behaves as it does.
LineGraphMaker is an online tool for creating line graphs. Users add a title and axis labels, enter data labels and values separated by commas, adjust line tension, set axis scale and grid lines, and download the graph as a JPG or PNG file.
Research index for locating articles, books, authors and citation information.
