unxip is a command-line tool designed for rapidly unarchiving Xcode XIP files and writing them to disk with good compression, aiming to outperform Bom. It can also read from a stream and extract to a specified directory. It is available as a precompiled binary for macOS 12.0 and later, through MacPorts and Homebrew, and can be built with Swift.
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Unyo is a storage, design, or frontend resource for mockups, assets, UI tools, or web search.
Research data portal for exploring engineering records, including experimental data.
Up1 is a code repository or project page with source code, releases, documentation, or setup notes.
Searchable repository for finding engineering datasets and datasets.
UpgradeAll is a code project with source, releases, documentation, or setup notes.
Upload-Assistant is a code project with source, releases, documentation, or setup notes.
Uploader is a code project with source, releases, documentation, or setup notes.
The Upper Ocean Processes Group at the Woods Hole Oceanographic Institution studies air-sea interaction and upper ocean processes using moored surface buoys with meteorological and oceanographic sensors. It provides technical support to upper ocean and air-sea interface science programs and maintains an archive of data from over 30 prior projects.
Upscayl is a free and open source AI image upscaler for Linux, MacOS and Windows. It uses AI to upscale images, offers multiple models and batch processing, and can enhance images by up to 16x.
Upscayl is a GitHub repository or organization with source code, releases, documentation, or project resources.
Uptime Kuma is a GitHub repository or organization with source code, releases, documentation, or project resources.
UPX is a free, portable executable packer for several executable formats, distributed under the GNU General Public License with full source code. It compresses programs and DLLs, typically reducing file size by around 50%-70%, and compressed programs and libraries remain self-contained. UPX inherits the security context of any files it handles, so it should be used only on trusted files.
Find and access engineering research data, with indexed datasets.
Open-source project that provides machine-learning models, research, training resources, or evaluation tools.
URL Expander expands shortened links and reveals redirect destinations before you open them.
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.
URLCheck is a code project with source, releases, documentation, or setup notes.
Find and access art history, music, theatre and media studies research data, with indexed datasets.
Urocissa is a free and open source self-hosted gallery built with Rust and Vue, designed for massive photo collections. It serves millions of photos on a 4GB RAM server using an in-memory cached database and virtual scrolling. It offers instant boolean search and a standalone executable for Windows and Linux.
Urocissa is a code repository or project page with source code, releases, documentation, or setup notes.
The Interactive Data Application from the U.S. Bureau of Economic Analysis provides access to BEA statistics, including national, international, regional and industry data. It organizes data by account and topic and offers printing, saving, exporting and charting, with data sharing via social tools. Data is updated in near real time.
The U.S. Joint Global Ocean Flux Study (U.S. JGOFS) was a national component of international JGOFS, launched in the late 1980s to study the ocean carbon cycle. Its goal was to understand the controls on the concentrations and fluxes of carbon and associated nutrients in the ocean. The program ended in 2005 with the conclusion of the Synthesis and Modeling Project (SMP).
A research tool that visualizes 342 occupations from the Bureau of Labor Statistics Occupational Outlook Handbook, covering 143M US jobs. Rectangle area is proportional to employment, and color shows a selectable metric such as BLS projected growth outlook, median pay, education requirements, or AI exposure. Clicking a tile opens its BLS page.