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Developer Blog

Guides, Tutorials & Developer Articles

Learn more about frontend development, online tools, JSON, encoding, regex, CSS and productivity workflows.

412 posts

UTM Parameters Explained for Beginners

A beginner-friendly guide to understanding UTM parameters and campaign tracking.

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UUID Versions Explained

Understand the differences between UUID versions, how UUID v1, v3, v4, v5 and v7 are generated, and when to use each version.

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UUID vs Nano ID

Compare UUID and Nano ID by length, randomness, security, performance, database usage and practical use cases.

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UUID vs ULID

Compare UUID and ULID by format, length, time ordering, randomness, database usage, performance and practical use cases.

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Vector Databases Explained

A practical guide to vector databases, embeddings, similarity search, indexing, metadata filtering, hybrid search, and using vector databases in modern AI applications.

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WCAG Color Contrast Guide

Understand WCAG contrast ratios, accessibility requirements and practical techniques for creating readable and inclusive user interfaces.

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WCAG Guidelines for Developers

Understand WCAG principles and practical accessibility requirements for building websites that are usable with keyboards, screen readers and assistive technologies.

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Web Accessibility Explained

Understand web accessibility, WCAG principles, accessible HTML, keyboard navigation, color contrast, forms, images and common accessibility practices.

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WebP vs PNG vs JPEG vs AVIF

Learn the differences between WebP, PNG, JPEG and AVIF, compare compression, quality and browser support, and discover when each image format should be used.

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What Are AI Agents?

A practical explanation of AI agents, including their architecture, tools, memory, planning, decision-making, execution loops, security, limitations, and common use cases.

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What Are AI Tokens?

A practical guide to AI tokens, explaining how text is tokenized, how token counts affect context windows and API pricing, and what developers need to know when building applications with language models.

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What Are Neural Networks?

Neural networks are machine learning models made of interconnected computational units that learn patterns from data by adjusting their parameters during training.

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What Is .editorconfig?

Understand how .editorconfig standardizes coding styles across different editors and IDEs, learn its most useful properties and see practical configuration examples.

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What Is .htaccess?

Understand how .htaccess works and why it remains an important Apache configuration tool.

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What Is a 301 Redirect?

Understand how 301 redirects work, when to use permanent redirects, how they affect SEO and how to avoid common redirect problems.

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What Is a 302 Redirect?

Understand how HTTP 302 redirects work, when temporary redirects are appropriate, how they differ from 301 redirects and common implementation mistakes.

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What Is a CDN?

Understand how CDNs deliver website files from servers closer to users, improve performance, reduce server load and cache static content.

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What Is a Context Window?

A practical guide to AI context windows, token limits, conversation history, long documents, context management, and why context size affects how large language models work.

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What Is a JSON Formatter?

Understand how JSON formatters improve readability, validate syntax, organize JSON documents and simplify debugging for developers.

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What Is a Large Language Model (LLM)?

A practical guide to Large Language Models (LLMs), including tokens, neural networks, transformers, training, inference, context, capabilities, limitations, and common real-world applications.

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