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Blog
- Base64 encoding across 5 languages: JavaScript, Python, Go, Rust, PHP
- Hashing in 2026: SHA-256, HMAC and PBKDF2 across Node, Python, Go, Rust
- Generating UUIDs across languages: stdlib vs libraries in 2026
- HTTP status codes: the only reference you'll need
- ISO 8601 date format cheatsheet: every variant with examples
- How to verify webhook signatures: Stripe, GitHub, Slack
- Why your regex is slow: catastrophic backtracking explained
- CSV parsing is harder than you think (and why `split(',')` isn't enough)
- NaN, null and undefined in JSON: what serialises to what
- Timezone conversion: the edge cases that bite
- Why 0.1 + 0.2 !== 0.3 (and what to do with money)
- How to generate a strong password (and what entropy means)
- Base64URL vs Base64: when the extra characters matter
- Compound interest explained with 5 worked examples
- OKLCH for designers: why switch from HSL
- PNG vs JPG vs WebP: pick the right image format in 2026
- What is HMAC (and why SHA-256 alone isn't enough)?
- Cron schedule cheatsheet: 50 patterns with explanations
- UUID v4 vs v7: which should you use in 2026?
- Complete regex cheatsheet (with copy-paste patterns that actually work)
- How to convert JSON to YAML (and back) without breaking things
- Cron syntax explained: a no-nonsense guide
- Base64 explained: what it is, what it isn't, and when to use it
- JSON vs XML in 2026: which should you actually use?
- What is a JWT? A practical guide for developers in 2026