Guides, tips, and explainers for developers and data people.
How automated code formatters like Prettier work, how text diffing actually compares versions, and why the two work best together.
What a Unix timestamp is, why seconds vs milliseconds trips people up so often, and how time zones actually work with epoch time.
A practical reference for Markdown syntax, the difference between CommonMark and GitHub Flavored Markdown, and the formatting mistakes that trip people up.
When to compress, resize, or convert an image format, how JPEG, PNG, and WebP differ, and why doing it in your browser protects your photos.
When and how to merge, split, rotate, and compress PDF files — and why doing it in your browser beats uploading documents to a server.
A practical comparison of YAML and JSON syntax, features, common pitfalls, and when to convert between the two formats.
A practical guide to JWT structure, claims, signing algorithms, and the difference between decoding and verifying a token.
A practical explainer on Base64 — how it works, why it exists, and the most common use cases developers encounter.
Everything you need to know about JSON formatting, common syntax errors, and how to validate JSON before using it in your application.
How to turn a spreadsheet or CSV export into ready-to-run SQL INSERT statements for MySQL, PostgreSQL, and standard SQL.
A beginner-friendly guide to writing regex patterns, understanding flags, and testing them with real-world strings.
The hidden risks of using server-side online tools with your API keys, database exports, and private data — and what to use instead.
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