oklavoters.com
Oklavoters.com helps search voter-registration records, voter databases, or public election-related data.
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openrefine.org
OpenRefine is a free, open source tool for working with messy data. It enables users to clean data, transform it between formats, and extend it with web services and external data. All data processing occurs locally on the user's machine rather than in cloud services. Key features include faceting to drill through large datasets, clustering to fix inconsistencies by merging similar values, reconciliation to match datasets to external databases, infinite undo/redo functionality, and support for contributing to Wikidata and other Wikibase instances.
github.com
Vanna is an open source tool that enables users to interact with SQL databases via natural language. It uses large language models and agentic retrieval to generate accurate text-to-SQL queries.
opensourcealternative.to
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.
github.com
ParadeDB is an open-source PostgreSQL extension hosted on GitHub. It adds functionality for application data management, full-text search, vector retrieval and data aggregations to PostgreSQL databases, and is the home of the pg_search extension. The repository includes links to associated documentation, community resources, a blog and a changelog.
pathwaycommons.org
Pathway Commons collects and disseminates biological pathway and interaction data from partner databases, represented in the BioPAX standard. It provides search, visualization and web services, downloadable files in BioPAX, SIF and GMT formats, and tools such as PCViz, CyPath2, PaxToolsR and ChiBE. All data and software are free and open-source.
pdbj.org
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.
pdfiles.net
PDFiles is a site for downloading PDF ebooks, described as offering many electronic books in Arabic and English, including technical references. It lists English and Arabic book sections, categories such as Android, databases, programming and networks, and a latest books section with titles available to download.
peptideatlas.org
PeptideAtlas is a multi-organism, publicly accessible compendium of peptides identified in tandem mass spectrometry proteomics experiments. Each atlas build is made by searching spectra against sequence databases or spectral libraries, assigning probabilities to peptide-spectrum matches and selecting matches that pass a threshold. Builds are named for a species or subproteome, such as Human Plasma, and the search function covers only default builds.
archive.physionet.org
PhysioBank is an archive of annotated, digitized physiologic signals and time series, organized into more than 50 databases with over 36,000 recordings. The recordings are freely available from PhysioNet. A browser-based PhysioBank ATM allows viewing records and annotations or obtaining limited samples in text format. PhysioToolkit software can read data directly from the PhysioNet server without downloading files first.
pleco.com
Pleco is a Chinese language reference and learning app for iPhone, iPad, and Android. It offers OCR lookup, handwriting lookup, licensed dictionary databases, audio recordings, flashcards, a document reader, a screen reader for Android, and animated stroke order diagrams.
powerdrill.ai
Powerdrill Bloom is an AI data analysis workspace with memory. It lets users ask questions across documents and databases in plain language, returning results with the page, row and figure behind them. It runs on-premise or in a private cloud. The free plan includes 1,000 daily refreshed credits and one scheduled task.
profreehost.com
ProFreeHost is a free web hosting service for personal and commercial use. It offers PHP, MySQL, FTP and email hosting with unlimited bandwidth, a control panel, a one-click installer and free subdomains. The features page lists 5GB diskspace with quotas for addon domains, parked domains and MySQL databases.
prometheus-bildarchiv.de
prometheus is a distributed digital image archive that makes over 135 databases from institutes, research facilities and museums searchable through a common user interface, with more than 4,176,000 records from art, culture and history. It is situated at the Institute of Art History of the University of Cologne and supported by the non-profit association prometheus e.V.
quadratichq.com
Quadratic is an AI-powered spreadsheet that connects to various data sources and provides fast, explainable insights. Users can ask questions in plain English and the AI generates formulas, code, and charts. It supports connections to CSVs, Excel, PDFs, and databases like Postgres and Google Analytics. The platform is used by over 250,000 people at companies and universities.
quickref.me
QuickRef.ME shares quick reference and cheat sheet material for developers, contributed by open source contributors. It covers topics including programming languages, Linux commands, Python, databases, keyboard shortcuts and other toolkits.
lweb.cfa.harvard.edu
The R. L. Kurucz atomic linelist is hosted among databases maintained at the CfA. The source describes it as data from Kurucz CD-ROM 18 and 23, with links to CD-ROM 23, the CfA AMP Server and CD-ROM 18. Other Kurucz data are maintained separately by R. L. Kurucz.
cheatsheets.zip
CheatSheets.zip is a repository of quick reference sheets and cheat sheets for developers, described as crafted by the open community. It lists cheat sheets covering topics such as AI tools, programming languages, operating systems, databases and keyboard shortcuts.
rish.kyoto-u.ac.jp
Browse research datasets and datasets related to astrophysics and astronomy.
resources.library.ubc.ca
UBC library resource portal for searching databases, collections, guides, and research tools.
rivoters.com
Rivoters.com helps search voter-registration records, voter databases, or public election-related data.
robloxden.com
Roblox Den is a companion site for Roblox offering guides, tools and tips for the game. It includes databases of music codes, game codes and catalog item codes, along with tools such as admin commands, a username generator, color codes and emotes. The site also provides best games lists and decal IDs. An app and a browser extension extend access to its codes.
opentrackers.org
A directory page on Opentrackers.org listing resources related to Warez and the Scene. It links to background articles, historical archives of BBS, artscene and demoscene material, scene rules and notices, release databases and GLFTPD scripts. The page states that dates represent when each link was added.
scidvspc.sourceforge.net
Scid vs. PC is a chess toolkit derived from Shane's Chess Information Database that lets users create large databases, run chess engines, and play casual games against the computer or on the Free Internet Chess Server. It began as bug fixes for Scid's computer-versus-player features and has grown into a broader alternative with new interfaces.