References & Useful Links
Data
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List of 256 colors for Xterm prompt (console). Contains displayed color, Xterm Name, Xterm Number, HEX, RGB and HSL codes.
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78 data APIs for projects
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The Bored API helps you find things to do when you're bored
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The City of Chicago's open data portal lets you find city data, lets you find facts about your neighborhood, lets you create maps and graphs about the city, and lets you freely download the data for your own analysis
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Ready to use API Service full of dummy fake data
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Big blocklist collection for Pi-hole
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A curated collection of all country flags in SVG — plus the CSS for easier integration.
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Informação georreferenciada relacionada com as diferentes atividades do Laboratório Nacional de Energia e Geologia
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A "public suffix" is one under which Internet users can (or historically could) directly register names. Some examples of public suffixes are com, co.uk and pvt.k12.ma.us. The Public Suffix List is a list of all known public suffixes.
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Locate articles and breaking news headlines from news sources and blogs across the web with our JSON API
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A collective list of free APIs for use in software and web development
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A free, open-source API for generating random user data. Like Lorem Ipsum, but for people
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Download maps in geojson
Education / Online Books
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big O cheat sheets
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covers the space and time Big-O complexities of common algorithms used in Computer Science
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Biblioteca do Conhecimento Online (b-on) disponibiliza o acesso ilimitado e permanente às instituições de investigação e do ensino superior aos textos integrais de milhares periódicos científicos e ebooks online de alguns dos mais importantes fornecedores de conteúdos, através de assinaturas negociadas a nível nacional
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Free Cheat Sheets, Revision Aids and Quick References
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Improve development skills by training with peers on code kata that continuously challenge and push coding practice
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The Deep Learning textbook is a resource intended to help students and practitioners enter the field of machine learning in general and deep learning in particular
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Forecasting: Principles and Pratice
Textbook intended to provide a comprehensive introduction to forecasting methods and to present enough information about each method for readers to be able to use them sensibly
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As a unique nonprofit collaborative, our mission is to aggregate and disseminate information to advance earth science and to strengthen the sustainability of our society partners
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Share, stress test, and stay up-to-date on all the latest ML techniques and technologies. Huge repository of community-published models, data & code for your next project
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Don’t let your friends dump git logs into changelogs.
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Semantic Versioning Specification
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Elsevier's premier platform of peer-reviewed scholarly literature. Advance research and scholarship with the world's leading database of peer-reviewed, full-text scientific, technical and health literature
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WTF Happened In 1971?
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How to perform stuff without using jquery
Libraries/Frameworks
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JavaScript charting library
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Choose an open source license
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Javascript framework of layout paradigm referred as "docker"
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htmx is a library that allows you to access modern browser features directly from HTML, rather than using javascript
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IBM Decision Optimization CPLEX
You can model your problems by using the Python API and solve them on the cloud with the IBM Decision Optimization on Cloud service or on your computer with IBM ILOG CPLEX Optimization Studio
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JMESPath is a query language for JSON
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jQuery is a fast, small, and feature-rich JavaScript library
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An open-source JavaScript library for mobile-friendly interactive maps
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SlickGrid is a fully open-source, javascript, vanilla js, client-side grid control compatible with Bootstrap
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open-source headless CMS 100% JavaScript / TypeScript and fully customizable
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responsive IDE interface. Compartmentalize your environment into smaller components, put each of those parts into a docker panel, and organize your environment however you like, whenever you like
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Advanced open-source geospatial data analysis platform
Tools
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On-Demand CSS animations library
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Infinite ASCII diagrams, save to Google Drive, resize, freeform draw, and export straight to text/html.
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Quickly format ASCII table
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Fast badge generating service
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Collection of the most popular developer tools all in one place
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Calculator Soup a collection of diferent types of calculators
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Canva makes it easy to create professional designs and to share or print them
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compares prices of 100+ domain registrars. Prices and promotional codes are updated every hour.
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Create beautiful images of your source code
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Handpicked collection of Web Design & UI Inspiration with Code Snippets
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A designstripe project that lets you create free gradient backgrounds for your website
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Free email validation API. Check if disposable or temporary email address
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Online Graphviz Editor
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free disposable email provider
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An open source virtual hand-drawn style whiteboard
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Create useful .gitignore files for your project
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Test your website speed
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Open Source API Development Ecosystem
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Website analytics with heatmaps
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Online HTML, CSS and JS editor with instant preview
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Free fake API for testing and prototypin
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Build a README
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Collaboration for Mission-Critical Work Self-hosted Team Messaging for Private Networks
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minimalistic and customizable typing test
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Color Palette Generator. Create Beautiful Color Schemes that works
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Generate neumorphic designs. Neumorphism, also known as soft UI, is a visual design trend that combines elements of skeuomorphism and flat design
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Notation allows you to write markdown and automatically publish it Notion. Once it's in Notion, it can be an internal thing, or you can ship it as a public website.
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Omnibug provides you the tools to quickly and easily verify that your marketing technologies are implemented properly
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Open Source Routing Machine, High performance routing engine written in C++ designed to run on OpenStreetMap data
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Server-side image rendering tool that allows web developers and designers alike to dynamically create images to be used as placeholders in a project
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AI-powered Copilot for your Data Warehouse
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Open source data visualization framework built with the goal of making the visual representation of complex data easy for everyone
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Simple editor allows you to quickly add and customize all the sections you need for your project's readme
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Regular expression tester with syntax highlighting, explanation, cheat sheet
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Free and open-source ATS tool for tailoring resumes to job descriptions
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Make beautiful flow diagrams
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Smooth shadows generator
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Concise, consistent, and legible badges
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Simple CSS media query generator for hundreds of devices
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Free SVG icons for popular brands
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leading TLS/SSL Certificate Authority specializing in digital trust for the real world
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In-browser Markdown editor
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A beautiful library with SVG logos
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View, edit, and optimize SVGs
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Simplify life for both you and your team with the world’s #1 task manager and to-do list app
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Create stunning typography
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The Largest Library of Open-Source UI Community-built library of UI elements Copy as HTML/CSS, Tailwind, React and Figma
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Communication APIs for SMS, Voice, Video & Authentication
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MLOps platform that makes it easy to track your experiments, manage & version your data, and collaborate with your team so you can focus on building the best models
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Resume builder. Professional resume and cover letter tools for any job
Websites
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collaborative space for sharing checklists that help ensure software quality, guide you through crisis and other helpful stuff for devs
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The IOGP's EPSG Geodetic Parameter Dataset is a collection of definitions of coordinate reference systems and coordinate transformations which may be global, regional, national or local in application
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Fast math typesetting library for the web
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MiKTeX is a modern TeX distribution for Windows, Linux and macOS
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Pandoc a universal document converter. Convert files from one markup format into another
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roadmap.sh is a website that offers comprehensive technology roadmaps, step-by-step guides and resources for various career paths in software development and web development
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Solarized is a sixteen color palette (eight monotones, eight accent colors) designed for use with terminal and gui applications
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Using generative adversarial networks (GAN), we can learn how to create realistic-looking fake versions of almost anything, as shown by this collection of sites that have sprung up in the past month.
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Hundreds of themes for Windows Terminal
Reporting / Dashboard
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The ultimate tool for working with DAX queries
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analytics platform
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A free platform to explore, create, and publicly share data visualizations online
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Visual analytics with self-service data visualization and advanced data science capabilities