Docs

Microsoft’s general-purpose language for the .NET platform, and the scripting language of Unity games. in Programming Languages →

Google’s client-oriented language, the one beneath Flutter. in Programming Languages →

A functional language on the Erlang VM, strong in scalability. in Programming Languages →

The pioneer of numerical and scientific computing, still in use and central to climate and physics simulation. in Programming Languages →

The official site of Google’s simple, fast-compiling language, strong in concurrency. in Programming Languages →

A purely functional, statically typed programming language with lazy evaluation. in Programming Languages →

A high-performance open-source language for scientific computing. in Programming Languages →

An introduction to the LLVM infrastructure plus the Kaleidoscope tutorial, the classic starting point for writing your own language. in Programming Languages →

A lightweight, embeddable scripting language, common in game engines, embedded systems and Neovim. in Programming Languages →

A dynamic, mature language strong in text processing and system scripting. in Programming Languages →

The official docs of one of the web’s most common server-side languages. in Programming Languages →

A language and environment designed for statistics and data analysis, with tens of thousands of packages on CRAN. in Programming Languages →

A multi-paradigm language foregrounding readability and developer happiness — the language of Rails. in Programming Languages →

The official guide to how RubyGems works and how to publish your own gem. in Programming Languages →

Apple’s safe, fast-compiled language, developed primarily for iOS and also running on Linux and servers. in Programming Languages →

A service that automatically builds and publishes the docs for every package on crates.io. in C, C++ & Rust →

The official documentation for the Qt framework: class reference, examples and platform guides for C++ and QML. in C, C++ & Rust →

The official reference for the Rust standard library — types, traits and macros. in C, C++ & Rust →

The official guide to Cargo, Rust’s package manager and build tool. in C, C++ & Rust →

Rust’s official book, building up ownership and borrowing from nothing. in C, C++ & Rust →

The official reference defining the language’s grammar and semantics. in C, C++ & Rust →

The most widely used asynchronous runtime for Rust; network services build on it. in C, C++ & Rust →

A tool doing dependency management and builds for Java with a standard project layout. in Java & JVM →

A modern Lisp dialect on the JVM. Unlike Common Lisp, it uses Java libraries directly and its data structures are immutable by default. in Java & JVM →

Oracle’s current, official Java learning portal. in Java & JVM →

Java’s standard unit-testing framework; the base of writing and running tests. in Java & JVM →

A cross-platform language on the JVM, the preferred language for Android. in Java & JVM →

The open-source reference implementation of the Java platform — where the language and JVM are developed. in Java & JVM →

Oracle’s official Java tutorial, from language basics through collections and concurrency. in Java & JVM →

Routing, forms, HTTP and dependency injection ship inside the framework. in Web & Frontend →

A tool turning Markdown files into a documentation site in the browser, with no build. in Web & Frontend →

Meta’s React-based documentation-site generator, with versioning and translation built in. in Web & Frontend →

A platform for writing and publishing documentation, syncing with Git to turn technical books into websites. in Web & Frontend →

A static-site generator written in Go that turns Markdown into websites. in Web & Frontend →

The most widely used reference for the web platform. in Web & Frontend →

A generator that turns Markdown notes — Obsidian vaults especially — into a linked site. in Web & Frontend →

The rewritten official docs, centred on hooks. in Web & Frontend →

The object, filter and tag reference for Shopify’s theme language. in Web & Frontend →

The official site of the WebAssembly standard: the specifications, an introduction to the concepts and a feature table… in Web & Frontend →

An open-source linter that scans a site for accessibility, speed, security and compatibility problems and explains each… in Web & Frontend →

Ready components and a grid system that get you a working interface without design decisions. in CSS & UI Kits →

A modern framework built purely from CSS (no JavaScript), based on Flexbox. in CSS & UI Kits →

The long-running alternative to Bootstrap: a responsive front-end framework with an XY grid, accessibility-minded… in CSS & UI Kits →

A tiny, modular CSS framework of just a few KB (Yahoo). in CSS & UI Kits →

You style with utility classes and the build step drops unused ones, so the CSS file stops growing. in CSS & UI Kits →

A command-line tool that runs HTTP requests and checks their responses (status, JSONPath, XPath, headers) from plain-text files, usable as tests in CI. in Backend, API & System Design →

Explains the runtime itself before any framework — event loop, streams, worker threads. in Backend, API & System Design →

Event-driven library for bidirectional real-time communication between browser and server; adds automatic reconnection… in Backend, API & System Design →

The plugin and theme development reference. in Backend, API & System Design →

The official Android developer documentation, tools and guides. in Mobile & Desktop →

The official developer documentation and resources for iOS and Apple platforms, including the Human Interface Guidelines. in Mobile & Desktop →

Reference for the main/renderer process split and the IPC between them. in Mobile & Desktop →

Draws every pixel itself through Skia/Impeller rather than using platform widgets, so iOS and Android look identical. in Mobile & Desktop →

The official docs of the cross-platform framework for building native mobile apps with React. in Mobile & Desktop →

Document-oriented NoSQL database that stores data in flexible JSON-like (BSON) documents rather than rigid relational… in Databases →

Searchable documentation for every postgresql.conf parameter, with version differences, defaults and community recommendations. in Databases →

A serverless embedded database living in a single file — the most widely deployed database engine in the world. in Databases →

Developer gateway for the Gemini API and the open-weight Gemma family. in AI · Models & Assistants →

Parameter reference for the Chat Completions, Responses and Realtime endpoints. in AI · Models & Assistants →

OpenAI models with Azure’s region selection and private networking. in AI · Agents & Infrastructure →

The official walkthrough of defining tools, binding a model and wiring the loop. in AI · Agents & Infrastructure →

The current docs drop the old chain vocabulary for a slimmer API built around create_agent. in AI · Agents & Infrastructure →

An async runtime where steps emit and listen for events. in AI · Agents & Infrastructure →

The new line merging AutoGen’s experimental side with Semantic Kernel’s enterprise side. in AI · Agents & Infrastructure →

An agent SDK exposing one API across C#, Python and Java. in AI · Agents & Infrastructure →

The concept page separating short-term memory (in-thread state) from long-term (a cross-thread store), and when each applies. in AI · RAG, Embeddings & Vectors →

Reference for the text-embedding-3 family — dimensions, pricing, usage. in AI · RAG, Embeddings & Vectors →

The embedding service inside GCP. Compared with another provider’s embedding API, if your data sits in BigQuery… in AI · RAG, Embeddings & Vectors →

Google’s automatically generated documentation for codebases, useful for extracting structure and entry points the first time you open a repository. in AI · Applied Tools →

A module architecture plus per-directory configuration through .htaccess. in DevOps & Infrastructure →

The official site of the open-source system that deploys, manages and heals containers at scale. in DevOps & Infrastructure →

The LiteSpeed web server’s configuration reference, including how LSCache rules are written. in DevOps & Infrastructure →

Node reference, self-hosting and credential management. in DevOps & Infrastructure →

The reference for its data structures — lists, sets, sorted sets, streams. in DevOps & Infrastructure →

Bash’s official manual. Unlike tutorials, it has the final word on contested topics such as expansion rules and parameter substitution. in Networking & Sysadmin →

The site for the standard command-line tool for transferring data with URLs and for the libcurl library; it has the… in Networking & Sysadmin →

The official site of the TLS/SSL and general-purpose cryptography library and the openssl command-line tool; command… in Networking & Sysadmin →

Community-maintained Turkish wiki covering Ubuntu and GNU/Linux system administration, package management, networking… in Networking & Sysadmin →

Even Realities’ developer hub, holding app development resources and API documentation. in Smart Glasses & Wearables →

The wiki of Kicksecure, a hardened Debian derivative, covering system hardening, kernel and browser settings, Tor and password management step by step. in Offence, Defence & OSINT →

A resource list for Quarto, the scientific and technical open-source publishing system. in Science & Academia →

Queued access to real quantum processors, with circuits written and submitted through Qiskit. in Quantum Computing →

Installing Q# and the QDK; the VS Code extension is the shortest path to running circuits on a local simulator. in Quantum Computing →

A developer guide and reference for building on Bitcoin: transactions, RPC and the P2P network. in Finance, Markets & Crypto →

Official portal of the Capital Markets Board of Türkiye publishing weekly regulatory bulletins, IPO approvals… in Finance, Markets & Crypto →

A tool generating flowcharts and diagrams from text — “Markdown for diagrams”. in Media, Files & Diagrams →

Free modular training whose modules map one to one onto certification exam objectives. in Learning & Roadmaps →

A guide to accessible interfaces at the code level, showing the wrong approach before the right one in every example. in Cheat Sheets & Quick Reference →

Apple’s interface rules across all its platforms: touch target sizes, navigation patterns, motion and typography. in Cheat Sheets & Quick Reference →

The central archive of TeX and LaTeX packages: each package’s documentation, version, licence and maintenance status on one page. in Cheat Sheets & Quick Reference →

Gathers official documentation for hundreds of technologies in one interface, downloadable offline with instant search. in Cheat Sheets & Quick Reference →

A comprehensive guide to Markdown, used for formatting READMEs and docs. in Cheat Sheets & Quick Reference →

GitHub’s official summary of its own Markdown dialect: tables, task lists, code fences, mentions. in Cheat Sheets & Quick Reference →

Rust’s official style guide, defining rustfmt’s default behaviour. in Cheat Sheets & Quick Reference →

A list of editors, converters and resources for the Markdown markup language. in Lists, Directories & Discovery →

A list of example documentation projects to inspire your own. in Lists, Directories & Discovery →