Developer Guides
110 articlesIn-depth tutorials and best practices for the technologies behind your favorite developer tools — hashing and password storage, image and PDF internals, HTTP and DNS, regular expressions, and the browser APIs the tools are built on.
Written and edited by Necmeddin Cunedioglu. Every article is original to this site, carries a publish date, and is corrected in place when something changes — see the editorial policy.
No articles found
Try a different search term or browse all categories below.
Comprehensive Guides
Core Web Vitals in 2026: The Complete INP, LCP, and CLS Optimization Playbook
A practical guide to Core Web Vitals now that INP replaced FID: what LCP, INP, and CLS measure, the thresholds that matter, and how to pass each one.
Generative Engine Optimization (GEO): How to Get Cited by AI Search in 2026
A practical guide to Generative Engine Optimization: how ChatGPT, Google AI Overviews, and Perplexity pick and cite sources — and how to earn the citation.
Prompt Engineering for Developers: Patterns That Actually Work in 2026
A no-hype guide to prompt engineering for real LLM apps: roles, few-shot, chain-of-thought, structured output, RAG, and evaluation patterns that work.
PDF vs DOCX: Structural Document Formats Comparison
PDF vs DOCX architecture: fixed-layout coordinate systems vs reflowable XML text nodes, plus font embedding — and what each format is really for.
Developer Generators: The Tools That Save You Hours Every Week
The generators every developer needs — UUIDs, passwords, QR codes, favicons, meta tags, robots.txt, and .gitignore — and when, why, and how to use each.
The Complete Guide to Browser-Based Image Editing
Image processing in the browser: Canvas drawImage(), Lanczos vs bicubic resampling, EXIF extraction, and local PDF generation — no server uploads.
Time & Date in Programming: The Complete Developer Guide
A developer's guide to handling time: the Unix epoch, the Year 2038 overflow, IANA timezones and DST, ISO 8601, UTC storage, and scheduling with cron.
HTTP Status Codes: The Complete Guide for Developers
A complete guide to HTTP status codes: 401 vs 403, the SEO impact of 301 vs 302, 409 for optimistic locking, and how to monitor 5xx errors properly.
CSS Color Systems: A Complete Guide for Developers
Master CSS color formats — HEX, RGB, HSL, and Color Level 4: when to use each, how to build consistent palettes, and what perceptual uniformity means.
Web Security: Encoding and Hashing Guide
Encoding vs hashing vs encryption: when to use Base64, SHA-256, bcrypt, AES, and HTML entity encoding for web security — with examples and decision trees.
Regular Expressions: The Complete Guide
Master regular expressions from basics to advanced patterns. Learn regex syntax, NFA engine backtracking, lookarounds, capture groups, and real-world examples.
JSON: The Complete Developer Guide
Learn everything about JSON — syntax, data types, parsing mechanics, V8 engine optimizations, schema validation, API best practices, and memory management.
AI Tools
View allUnderstanding Code with AI: A Comprehensive Guide to Code Explainers
How AI code explainers use Abstract Syntax Trees, tokenization, and large language models to decipher complex code and logic in plain English.
Summarizing Long-Form Documents with AI: A Technical Deep Dive
Extractive vs abstractive summarization, how LLMs handle large PDFs via chunking, and the NLP algorithms powering modern document summarizers.
The Evolution of Grammar Checking: How AI is Changing Writing
The architecture behind modern AI grammar checkers: how NLP models evolved from rule-based systems to the neural networks that catch errors today.
AI Paraphrasing Tools: Mechanisms, Architecture, and Ethics
How AI paraphrasing tools work: the neural architectures that rewrite text while preserving meaning, and the ethics of automated rewriting.
Detecting Plagiarism in the Age of LLMs
How do AI content detectors work? Explore the concepts of perplexity, burstiness, and the arms race between generative AI and plagiarism detection algorithms.
Automated Keyword Extraction: NLP Techniques and Algorithms
How AI extracts keywords from text: TF-IDF, TextRank, YAKE, and modern Transformer-based approaches to semantic keyword extraction.
Building AI Question Answering Systems: RAG and Vector Databases
How AI question-answering systems work: Retrieval-Augmented Generation (RAG), vector embeddings, and how models find exact answers in large datasets.
Network & API
View allREST vs WebSockets: When to Use Each
REST vs WebSockets: request/response vs persistent full-duplex connections, polling vs push, latency and scaling trade-offs, and which fits real-time.
SQL vs NoSQL: Which Database Architecture to Choose?
A comprehensive guide comparing SQL (Relational) and NoSQL databases. Understand their structures, scaling capabilities, and use cases.
TCP vs UDP: How the Two Transport Protocols Differ
TCP vs UDP: the three-way handshake, reliability and ordering, header overhead, and which protocol web, DNS, video, and gaming actually use.