Ideone is an online compiler and debugging tool that allows compiling and running code online in more than 40 programming languages. It also supports adding an input stream, saving output, and adding notes and tags. The site is powered by Sphere Engine and is operated by Sphere Research Labs.
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KDevelop is a cross-platform integrated development environment for C, C++, Python, QML/JavaScript and PHP. It parses projects to provide code completion, supports multiple projects in one session, and offers a Git plugin and documentation integration. It is available for Linux, Windows and macOS.
Learn X in Y minutes is a community-driven site offering brief tours of programming languages, plus frameworks and libraries, tools, and algorithms and data structures. Language pages are available in numerous translations, including English, French, German, Spanish and Chinese.
LibHunt lists open-source projects, libraries and tools across programming languages, ranked by social media mentions and developer engagement. It also presents trending projects, latest discoveries and mentions, and an index of programming language popularity.
A computing-focused community centered around link aggregation and discussion. Users post links with tags and comment on them, with recent posts covering security, CSS, operating systems, databases and programming languages.
Collect metrics and query monitoring data.
A guide to design patterns in the Python programming language by Brandon Rhodes, covering Gang of Four principles, creational, structural and behavioral patterns, and Python-specific patterns. The author states progress is intermittent and directs readers to the site's GitHub commit history for new material.
An Appcues-powered gallery of UX examples covering onboarding tours, in-app feature announcements, user surveys and signup flows, alongside articles and a podcast featuring product and design experts. It is aimed at people seeking inspiration for mobile and web product experiences.
CheatSheets.zip is a repository of quick reference sheets and cheat sheets for developers, described as crafted by the open community. It lists cheat sheets covering topics such as AI tools, programming languages, operating systems, databases and keyboard shortcuts.
Retype is a Markdown-first documentation website builder that turns Markdown files into a website. It installs via npm, Yarn, or the dotnet CLI, and running retype start builds the site and opens it in the browser. Retype Pro and Enterprise licenses unlock Pro features; the Free plan lists three projects. Sites can be hosted on any web server or on GitHub Pages, Netlify, or Cloudflare.
Surge is a static web publishing service for front-end developers that deploys projects from the command line to a CDN. It offers free custom domain support, free SSL for surge.sh subdomains, pushState support for single page apps, custom 404.html pages, and a CLI. Projects can be deployed through build tools such as Grunt, Gulp, Git Hooks, and npm run scripts.
An open-source resource for learning data structures and algorithms through implementations in various programming languages. The site covers programming languages including Python, Java, JavaScript, Go, Rust, and C++, and organizes algorithms into categories such as sorting, searching, and graph algorithms. It also provides guidance on contributing implementations.
A collection of useful online web development tools, published at tiny-helpers.dev. Contributions are closed and pull requests are disabled, after the project was flooded with low-effort, AI-generated submissions. The project is licensed under MIT and uses Vercel's routing configuration.
Awesome Game Dev is a GitHub repository or organization with source code, releases, documentation, or project resources.
Catalog of software network services and web applications that can run on your own server. Entries link to project websites and source code.
Tool for checking cached versions of web pages from search engines and archive sources.
A website collecting cheat sheets, round-ups, quick reference cards and quick reference guides on a single page, organized by topics such as .NET, Ada, Adobe Systems, AJAX, Algebra and Amazon Web Services. Entries link to external PDF or HTML documents and list official project websites.
Codeberg is a non-profit, community-led effort providing services to free and open-source projects, including Git hosting using Forgejo, Pages, CI/CD and a Weblate instance. It is maintained by the non-profit organization Codeberg e.V., based in Berlin, Germany, and states it charges users no money and relies on optional donations. Its community includes developers, artists, academics, hobbyists and professionals.
Dev Scraping APIs is a GitHub repository or organization with source code, releases, documentation, or project resources.
Docker is a platform for building, sharing, and running containerized applications. It provides tools for AI agent sandboxing, agent governance, secure software supply chain management, containerization, local LLM inference, and enterprise-grade application security. The platform is designed to simplify development setup, support local to scaled deployment, and avoid vendor lock-in.
CachedView is a browser for viewing cached versions of web pages. Following Google's discontinuation of its cached pages feature in early 2024, the site uses Archive.org (Wayback Machine) as its primary source for archived snapshots of websites.
Hackertab.dev is a GitHub repository or organization with source code, releases, documentation, or project resources.
r/SelfHosted Wiki provides Linux, macOS, BSD, or Unix documentation, tutorials, manuals, and learning guides.
Developer Q&A site for programming problems, debugging, APIs, frameworks, and software engineering.