Open Government Portal provides a searchable catalogue of Government of Canada open data. It lists datasets by publisher, format, subjects and update frequency, and includes guidance on working with datasets. The source describes open data as machine-readable, freely shared and reusable without restrictions.
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Open Knowledge Maps is a nonprofit, open science AI-based search engine for scientific knowledge. It provides visual overviews of research topics, helps users find relevant research outputs and identify key concepts. The platform searches over 400 million outputs from more than 11,000 sources, with results based solely on underlying metadata to avoid hallucinations.
Open Library is an open, editable library catalog building toward a web page for every book ever published. Users can read, borrow and discover more than 3M books for free, and contribute corrections and new information like Wikipedia. It also provides APIs for book discovery and lookup services.
Open Music Theory helps find books, reading material, archives, or public-domain educational texts.
Read practical guidance on starting and contributing to open-source projects.
The Open Textbook Library is a catalog of open textbooks licensed by authors and publishers to be freely used and adapted. It offers 1887 open textbooks, supported by the Open Education Network, and lists new and forthcoming titles.
Open Yale Courses is a free educational resource providing full sets of materials for Yale undergraduate courses. Each course includes high-quality recorded video lectures, syllabi, suggested readings, exams, and problem sets. Lectures are available as downloadable videos, audio-only files, and searchable transcripts. Some previously listed courses have been removed and are now accessible via Yale's official Coursera platform.
An open solution to the Data Science Bowl 2018, based on the topcoders winning solution from ods.ai. The repository was archived by the owner on Jun 22, 2022 and is now read-only. It uses PyTorch and references neptune.ml, though running it as a plain Python script is possible.
An archived, read-only GitHub repository holding an open solution to the Google AI Open Images Object Detection Track. It offers starter code, configs and notebooks, with RetinaNet training and references to the Neptune experiment platform; Neptune use is optional and the code can run as a plain Python script. The README notes the competition used Open Images Dataset V4.
An archived, read-only GitHub repository holding an open solution to the Home Credit Default Risk challenge. It provides code, configs and notebooks plus documented solutions using LightGBM, sklearn and XGBoost with engineered features; the README lists cross-validation and leaderboard scores for each. References to Neptune are optional and the solution can run as a plain Python script.
A repository archived by its owner and now read-only. It is an open solution to the TGS Salt Identification Challenge. The project is listed with data science and image segmentation topics. The readme states that support can no longer be provided.
Open-Source iOS Apps is a collaborative list of open-source iOS applications. The repository is tagged for topics including app, apple, ios, ipad, iphone, swift, swiftui and tvos. It includes README, APPSTORE, ARCHIVE, LATEST and contents.json files, a CC0-1.0 license and contributing guidance.
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Reddit link is a Reddit community or thread with discussion, guides, updates, or shared resources.
Open Code Review is an AI-powered code review CLI tool that reads Git diffs and sends changed files to a configurable LLM agent, producing structured line-level review comments. It also scans entire files and supports OpenAI and Anthropic compatible endpoints.
OpenColorIO is an open-source color management solution geared towards motion picture production, with an emphasis on visual effects and computer animation. OCIO is integrated and ready to use in many major software packages.
MinerU is a tool that transforms complex documents such as PDFs and Office documents into LLM-ready markdown or JSON for agentic workflows. It supports multiple input formats including PDF, images, DOC/DOCX, PPT/PPTX, XLS/XLSX, RTF, ODT/ODS/ODP, EPUB, OFD, HTML/MHTML and CSV/TSV. Version 4.0 offers four parsing tiers and a document library with search and citation locators, and documents are not automatically uploaded to the official service; remote parsing requires explicit configuration.
OpenDyslexic is a typeface designed against some common symptoms of dyslexia. The newest version uses the SIL-OFL license, permitting personal, business, educational, commercial, books, ebook readers, applications and websites. It can be downloaded and used for free without mandatory fees, and optional donations and Patreon subscriptions are offered.
Opengist is a self-hosted pastebin powered by Git, described as an open-source alternative to GitHub Gist. Snippets are stored in a Git repository and can be read or modified with standard Git commands or through a web interface. It supports public, unlisted and private snippets, Git operations over HTTP or SSH, and Docker deployment.
Openlibrary is a code project with source, releases, documentation, or setup notes.
OpenMapTiles is an open-source stack for building world maps with OpenStreetMap vector tiles. It includes a vector tile schema, ready-to-use map styles, and tools for generating vector tiles. It works with MapLibre GL, Leaflet, OpenLayers, GIS, and WMTS. The project was created by MapTiler, which maintains the schema and tools.
OpenSCAD is free software for creating solid 3D CAD models, available for Linux/UNIX, Windows and Mac OS X. It is not an interactive modeller; instead it reads a script file describing an object and renders the model. It focuses on CAD aspects rather than artistic modelling and provides constructive solid geometry and extrusion of 2D outlines.
Jan is an open source alternative to ChatGPT that runs offline on the user's computer, according to the repository description. It provides local AI models downloaded and run with an OpenAI-compatible local server at localhost:1337 and supports connecting to cloud GPT and Claude models according to the README features list.
Optimum-TPU is a Hugging Face project providing Google TPU optimizations for transformers models, aiming to ease training and inference on TPUs. It supports text generation models including Gemma, Llama2, Llama3 and Mistral, and includes a text-generation-inference backend. The repository was archived in January 2026 and is read-only, with the project in maintenance mode.