Tech, dev & more, explained simply

Straightforward guides, comparisons and tutorials on technology, development, gaming and general topics.

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Latest guides

• What is a SQL query? How SELECT, JOIN and aggregation workA SQL query is a declarative statement that asks a relational database for data. This guide explains the SELECT statement, WHERE filtering, JOIN across tables, GROUP BY aggregation, and how to read a query plan.
  database·12 min read
• What is a relational database? How relational databases workA relational database stores data in tables of rows and columns connected by keys, using SQL to query and manage it. This guide covers the relational model, normalization, transactions, and when to choose an RDBMS.
  database·9 min read
• Object Storage Explained: How Object Storage Works and When to Use ItObject storage is a data architecture that stores files as objects with metadata and a unique ID, instead of as files in folders or fixed-size blocks. Learn how S3 buckets work, how object storage compares to block and file storage, and when to choose it.
  devops·10 min read
• Microservice Architecture Explained — Decomposition, Communication, Data, and Trade-offsMicroservice architecture splits an application into small independent services. Learn how decomposition, inter-service communication, data management, and the microservice premium work.
  architecture·9 min read
• What is lazy loading? How deferring resources speeds up the webLazy loading is a performance strategy that defers non-critical resources (images, iframes, JavaScript, CSS) until they are needed. Learn what can be lazy-loaded, the native loading attribute, the Intersection Observer API, and when lazy loading helps or hurts.
  performance·7 min read
• What is Edge Computing? How it works and when to use itEdge computing moves computation closer to users, reducing latency and bandwidth compared to centralized cloud. This guide explains how it works, its benefits, challenges, and how it compares to traditional cloud computing.
  networking·9 min read
• What is database normalization? 1NF, 2NF, 3NF, and BCNF explainedDatabase normalization is the process of structuring a relational database according to a series of normal forms to reduce data redundancy and improve data integrity. This guide explains why normalization matters, walks through 1NF, 2NF, 3NF, BCNF, 4NF, and 5NF with worked examples, and when denormalization is the right trade-off.
  database·14 min read
• What is a webhook? How webhooks work and how to secure themA webhook is a user-defined HTTP callback: one service sends an HTTP request to a URL you control when an event happens. Learn how they work, how they differ from polling and regular APIs, and how to verify signatures and handle retries safely.
  programming·8 min read
• How to use the Web Crypto API in the browser: hashing, signing, and encryptionThe Web Crypto API gives every browser a built-in cryptography engine. Learn how to hash data, sign and verify messages, and encrypt or decrypt content using SubtleCrypto — with practical code examples and security notes.
  security·10 min read
• Web compression: how gzip and Brotli shrink the webWhen a browser loads a page, the HTML, CSS and JavaScript are usually sent compressed. Here's how gzip and Brotli work, and why Brotli often wins for text.
  web·4 min read
• TypeScript vs JavaScript: which language should you learn first?JavaScript is the language of the web; TypeScript is a typed superset of it that compiles to JavaScript. Compare the trade-offs and learn when each one is the right tool.
  development·10 min read
• How to set up SSH key authentication (GitHub + Linux)Set up SSH key authentication for GitHub and Linux servers: generate Ed25519 keys, add to ssh-agent, copy public key, and test connection — step-by-step with open-license sources.
  security·7 min read

Popular tools

• ClaudeAnthropic's AI assistant known for long-context reasoning, strong coding abilities, and Constitutional AI safety approach.development
• ChatGPTOpenAI's conversational AI assistant powered by GPT-4 and GPT-4o models, with plugins, image generation, and a large developer ecosystem.development
• GeminiGoogle's multimodal AI assistant with deep Google Workspace integration, real-time data access, and strong reasoning across text, code, images, and audio.development
• PerplexityAI-powered answer engine providing cited search results with source links, built on large language models with real-time web indexing and transparency focus.development
• GitHub CopilotAI code completion and chat assistant by GitHub and OpenAI that autocompletes code in VS Code, Visual Studio, Neovim, Eclipse and JetBrains IDEs.development
• CursorAI-first code editor based on VS Code that integrates LLMs for inline editing, chat, and codebase-aware suggestions.development
• Visual Studio CodeFree, open-source code editor by Microsoft with built-in Git, debugging, and a vast extension marketplace for every language.development
• FigmaCollaborative web-based interface design tool for UI/UX design and prototyping, with desktop and mobile companion apps.design

Popular comparisons

• ChatGPT vs Claude20 USD · 20 USD
• ChatGPT vs Gemini20 USD · 19.99 USD
• Claude vs Gemini20 USD · 19.99 USD
• Canva vs Figma12 USD · 16 USD
• Cursor vs Visual Studio Code20 USD · 0 USD
• GitHub vs GitLab CI/CD0 USD · 0 USD