Valid Number offers a free reverse phone lookup service that retrieves available information for phone numbers and lets users validate a number and identify an associated caller. Users can report suspicious calls from the results page, and a list of recently looked-up numbers reported as unsafe is shown.
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VectorSurv is a vector-borne disease surveillance system. Public health and vector control agencies use the Gateway to manage and analyze surveillance and control data, and each agency keeps privileges to manage its own data and user accounts. VectorSurv Maps shows past and present surveillance results for arboviruses and invasive mosquitoes. A RESTful API lets users integrate VectorSurv data with other software.
Custom Google search engine focused on finding video and streaming resources across selected websites.
VideoToJPG is a browser-based video frame extraction tool built for fast results, converting video files to JPG, PNG, or WebP image files. It supports MP4, MOV, AVI, MKV, FLV, WebM and over 50 additional video formats, and processes all content locally in the user's browser with no upload required. The free service supports batch frame extraction, FPS-based selection, and blur detection for clean output.
An OSINT tool from Aware Online Academy for researching Vimeo. It searches for videos, people, channels and groups, and includes a 'Mature content' option to get more results. Some tools may redirect users to third-party websites.
Virgil APK Search helps search for Android app resources using a focused custom search engine or curated search page.
VisualizeHabit is a tool focused on helping users build small, consistent habits to reach their goals. It offers a free calculator that shows the cumulative results of tiny habits over a year, suggests habits for users to adopt, and visualizes how habits compound over 1 or 10 years to motivate users and help them avoid procrastination and failed New Year's resolutions.
Vuhuv is a search engine based in Türkiye. It provides features such as email send and receive functionality via a Vuhuv account, search predictions, search history, spelling correction, multiple language options, various appearance modes, and region-based search settings.
Rapid7 Vulnerability & Exploit Database is a curated repository of vulnerability and exploit data maintained by Rapid7 Labs. It provides verified CVE intelligence, public exploit details, and remediation guidance, with exploit modules and check methods integrated into the Metasploit Framework. The database is searchable and updated with the latest public vulnerability and emergent threat information.
WalletScrutiny helps bitcoin users check whether a wallet is truly open-source and secure. It runs 17 tests across mobile, hardware, and desktop wallets, and results are grouped into categories such as all tests passed, build or source-code issues, and missing source code. The independent, non-profit project depends on volunteers and donations and lists thousands of wallets reviewed.
WBG Open Finances is a World Bank Group platform that provides access to comprehensive public financial data from IBRD, IDA, IFC, and MIGA. It includes datasets on financial reporting, procurement, projects, and shareholder equity, and presents financial results, lending data, and spotlight publications in simplified, easy-to-consume formats.
Web Check is an OSINT and security tool that reports on a website's configuration, including IP information, SSL certificates, DNS records, cookies, crawl rules and response headers. The site states it supports 44 checks and produces results in about 20 seconds.
WebCrawler is a web search engine or search directory for finding websites, pages, and online information.
WebDork is an open-source Python tool that automates dorking tasks to find publicly available information disclosures for specified companies and organisations. It accepts a target company or organisation name as input, runs dork searches either in a browser or via the terminal, and allows users to view, save, or suppress output of results, with optional proxy support to avoid blocks. The tool is intended for ethical information gathering, and users are required to independently verify any information found through its use.
WebSitesSearch is a web search engine or search directory for finding websites, pages, and online information.
Search-focused site for finding news, deals, and web results from a simple search page.
An article comparing Topological Data Analysis results with those from t-SNE and UMAP packages. It discusses advantages of TDA coupled with self-supervised learning and covers case studies in IoT, image analysis and text analysis, plus open-source libraries for starting with TDA.
Wiby is a search engine focused on older-style, classic web pages. It is lightweight and centered on user-specified subjects of interest, with the goal of creating a web experience reminiscent of the early internet. Users can submit pages to the index, adjust their settings, and use the 'surprise me' feature.
Search engine focused on small, classic, and independent websites across the web.
Defunct free and open-source web search engine by Wikia.
Web search service for locating pages, resources and topic-specific results.
Wikiman is a universal offline documentation search engine for manual pages, tldr-pages, ArchWiki, Gentoo Wiki, DevDocs, and FreeBSD documentation. It offers browsing without needing exact terms or an internet connection by using full-text search for wikis, partial name and description matching for man pages, and fuzzy filtering for search results.
WizardLM is a repository of large language models including WizardLM, WizardCoder and WizardMath, described as LLMs built upon Evol Instruct. The page lists model checkpoints and benchmark results, with WizardCoder-33B-V1.1 reported at 79.9 pass@1 on HumanEval and WizardMath-7B-V1.1 reported at 83.2 pass@1 on GSM8k.
The Wolfram LLM Benchmarking Project is an ongoing initiative that tracks large language model performance using a benchmark centered on Wolfram Language code generation tasks. It publishes the results of its ongoing performance tracking for LLMs.