GlycomeDB was a metadatabase of carbohydrate structures that has become part of GlyTouCan. Its glycan structures and related cross-reference and taxon annotation data were migrated to GlyTouCan, the international glycan structure repository. GlyTouCan assigns globally unique accession numbers and allows individual researchers to register their own structures.
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Glyphs is an open source icon design system for creating icon sets in Figma and using them on the web. It offers thousands of editable icons designed in Figma, web components for any application, and a CLI utility to download SVGs from Figma. Icons are categorized and tagged for easy search, with growing documentation and guides.
The mat package from Gonum provides implementations of float64 and complex128 matrix structures and linear algebra operations on them in Go. It offers interfaces for matrix classes, concrete implementations such as Dense and SymDense, methods for using matrix data, and types for matrix factorizations such as QR and LU.
Community-run website for sharing save files from Grand Theft Auto games and other Rockstar titles. Users can upload saves, browse uploaded files, and patch saves to fix bugs and compatibility issues. It also displays metadata from uploaded save files. Uploaded files are public and anonymous, and expire 30 days after their last download.
An arXiv paper on digging deeper into hidden web databases limited by the top-k output constraint. It presents the GetNext meta-algorithm, which retrieves the next ranked tuple through a restrictive interface without prior knowledge of the ranking function, and algorithms that generate and execute multiple reformulated queries. Theoretical analysis and experiments over synthetic and real-world databases are reported.
Istanbul Metropolitan Municipality's open data platform enables users to search for datasets by keyword or topic, review them, and download data or query it via API to create projects. Published datasets are labeled under categories such as energy, economy, environment, mobility and governance.
ImgOps is a meta-tool for online image operations. A user enters an image by pasting, dragging and dropping, or a URL, then chooses an online image utility. The page lists supported operations including reverse image search, EXIF viewing and removal, editing, format conversion, OCR, and animated GIF utilities. Uploads are stored temporarily in a one-hour cache.
The INGV Open Data Portal provides public access to metadata from the institutional Data Registry of the Istituto Nazionale di Geofisica e Vulcanologia, covering research data in seismology, volcanology and environment. Data are attributed to their authors and can be searched by keyword or by drawing an area on a map; datasets are listed by availability of web services for programmatic access.
JS.ORG offers free subdomains for GitHub Pages sites related to JavaScript, provided the page has reasonable content connected to JavaScript. Users add a CNAME file to their repository and open a pull request to register a subdomain, which should go live within 24 hours. The site has been dedicated to JavaScript and its community since 2015.
Koel is an open-source music streaming server that lets users host and stream their own music. It includes media management for uploads and metadata, Subsonic and OpenSubsonic API support, and iOS and Android apps. The Community version remains free and open-source; a paid Koel Plus version adds features such as individual libraries and storage drivers.
The Life Science Database Archive maintains and stores datasets generated by life scientists in Japan for the long term. It lets users search datasets by metadata in a unified format and access and download them under clear terms of use. It also provides datasets in forms suited to different users in public and private institutions.
Online database of the Louvre's collections, with entries for more than 500,000 works in the Musée du Louvre and Musée National Eugène-Delacroix. Entries are updated daily by teams of experts and include each work's location. The site also offers themed albums and an interactive museum map.
MarkD is an advanced, opinionated live Markdown editor built with SvelteKit. It provides live side-by-side preview, scroll synchronization, theme customization, and real-time document metrics including character, word, and length counts.
Marp, the Markdown Presentation Ecosystem, is a toolset for creating slide decks from Markdown documents. Its format is based on CommonMark, with a ruler for splitting pages. It supports directives, extended syntax, and built-in themes, with CSS theming. Markdown can be converted into presentation-ready HTML, PDF, and PowerPoint files. The ecosystem includes Marp for VS Code and Marp CLI, and is built on the Marpit framework.
The MCHF/MCDHF Database is a NIST collection of transition data from relativistic theories computed by different computational methods. The Landé gJ factor is provided for a few collections. Data is accessed by selecting an element from the periodic table, then a spectrum, a reference number, and a property. Atomic structure codes used in the calculations, including HFFortran95, ATSP, ATSP2K and GRASP2K, are available for download.
Python tool used to download, extract, and apply date, time, and location metadata to Snapchat Memories when exporting them from the app.
MetaNetX.org is an online platform for accessing, analyzing and manipulating genome-scale metabolic networks and biochemical pathways. It integrates data sources and tools, includes a repository of models such as BiGG and Model SEED, networks from BioCyc, and pathways from Reactome, and allows users to upload their own models in formats such as SBML or Excel.
Meta Tags is a tool for editing and experimenting with page metadata, then previewing how a webpage will appear on Google, Facebook, X and more. The site also links to official debuggers for Facebook, X, LinkedIn and structured data.
Metatogger is a free MP3 and FLAC tag editor for Windows. It can edit metadata for multiple tracks at once, identify titles and artists using acoustic fingerprints, add album covers, and organize music files into folders using their tags. It runs on Windows 10 64-bit and later and supports MP3, FLAC, Ogg Vorbis, Opus, M4A (AAC and ALAC), and WMA.
Metrolist is a free YouTube Music client for Android, according to its Telegram listing. It lists YouTube Music account sync, offline downloads and caching, live lyrics, and a Material 3 design with dark themes. The download page directs users to APK files hosted on GitHub releases.
Minuimus is a file optimiser utility script that makes files smaller without compromising their contents, using file-specific optimisations such as decompressing and recompressing data. By default its optimisations are transparent, preserving image pixels, media quality and metadata unaltered. It consists of a perl script and optional binaries, released under the GPL v3 license, and runs on Ubuntu Linux and Windows via Strawberry Perl.
MLReef is an open source ML-Ops platform for collaborating, reproducing and sharing machine learning work. The repository notes it is no longer supported or updated there, with work continuing on GitLab. Described sections include data management with versioned data hosting, containerized code repositories, experiment tracking and ML pipelines on Kubernetes, cloud or bare metal.
ModelDB is an open-source system for versioning machine learning models, including their code, data, config and environment, and for tracking ML metadata across the model lifecycle. It supports reproducible models, experiment management and lifecycle tracking. It runs on Docker and Kubernetes, offers Python and Scala clients, and is maintained by Verta.ai.
Movieo is a movie discovery and tracking tool that helps users find, organize, and track over 250,000 titles. It offers a filtering system to search by criteria such as decade, genre, runtime, and availability on Netflix, with results sorted by scores from IMDb, Rotten Tomatoes, or Metacritic. Users can build and share lists, attach notes, hide watched or uninteresting titles, and import or export their tracked movies. Browsing and tracking are free; optional Premium plans add AI recommendations.