UpperPix is a collection of free browser-based image tools. It converts JPG, PNG, WebP, AVIF and ICO files, compresses images, resizes files in bulk, generates favicons and ICO files, and merges, splits or compresses PDFs. Processing happens locally with no upload and no registration.
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URL Shorteners Search, hosted at shorteners.grayhatwarfare.com, is a search tool for indexed shortened URLs. It indexes 1.1 billion URLs from 3.6 billion domains, with updates as recent as 06 November 2025. The service provides a public API for searching, fetching, filtering, and sorting shortener URLs and domains, with free registered and premium user tiers. A scrolling API for bulk result fetching is available to Enterprise package users.
URLhaus is a platform operated by abuse.ch with the purpose of sharing malicious URLs used for malware distribution. It allows reporting URLs and browsing a database of malicious URLs. APIs enable pushing and pulling signals and automating bulk queries, and Spamhaus datasets enhanced by URLhaus are offered for threat hunting, email protection and network protection.
UUID Tools is an open-source, free online tool and API for generating UUIDs and GUIDs on the fly, including version-1, version-3, version-4 and version-5. The API requires no authentication, allows up to 100 UUIDs per request and is limited to 60 requests per minute per IP address. It also offers a UUID decoder and bulk generator.
WallBrowser is a wallpaper browser for Wallhaven that allows users to browse, search and download HD wallpapers. It offers advanced filters, color search, favorites management and bulk downloads through a mobile-optimized interface.
Wappalyzer is a website technology checker that identifies the technologies a site is built with, including CMS and ecommerce platforms, analytics tools, frameworks and infrastructure services. It supports single-domain lookups or bulk analysis of thousands of sites, and can also be used in the browser, in a CRM, or through an API.
Webscout provides intelligence on IP addresses for defenders of democracies and critical infrastructure. Its platform ingests network and intelligence feeds, adds context, detects threats, and supports investigation and response. It enriches IPs with data on geolocation, network ownership, VPNs, Tor, residential proxies, and provider attribution, delivered by API, bulk feed, or SIEM integration. It also offers honeypots and domain intelligence.
WorldData.AI is a data platform that aggregates curated data from public sources. It combines datasets, news analysis and location-based data in a single search interface. The site lists a free trial plan with 8000 credits per month, limited access to Global Data, News AI and Geo Intelligence, and a bulk download limit of 250 datasets.
Yazi is a terminal file manager written in Rust that is based on async I/O. All I/O operations are asynchronous, and CPU tasks run across multiple threads. It offers scrollable previews, visual mode with bulk rename, multi-tab support, and incremental find. Search uses fd by name and rg by content. Optional tools extend functionality for thumbnails, archive handling and PDF preview.