Step-by-step guides, explanations and best practices for the tools people use every day - written to be useful whether or not you use Zoven.
A practical guide to saving YouTube videos at exactly the resolution you need - 360p for data saving, 1080p for editing, 4K for archiving - plus what to consider before downloading.
Guides · 6 min read
What JSON is, why APIs speak it, the syntax rules that trip people up, and how a formatter/validator turns unreadable walls of text into something you can actually debug.
Explainers · 7 min read
Why length beats cleverness, how attackers actually crack passwords, what breach databases mean for you, and a practical system for unique logins everywhere.
Security · 8 min read
Why client-side PDF processing is safer than uploading contracts to a random website, and what you can do entirely offline: merging, page extraction, rotation, compression and conversion.
Productivity · 6 min read
Every photo you take carries hidden data - GPS coordinates, device model, timestamps. Learn what EXIF reveals, when it matters, and how to strip it before sharing.
Privacy · 5 min read
The quiet pattern in the corner of every restaurant table is a 30-year-old piece of engineering. Here is what is inside a QR code, what makes some unscannable, and how to generate ones that last.
Explainers · 7 min read
Why the same photo can be 400 KB or 4 MB, what "lossy" actually throws away, when PNG beats JPEG (and when it does not), and how modern formats cut page weight in half.
Explainers · 8 min read
What #4F46E5 actually encodes, why RGB is for machines and HSL is for humans, how alpha transparency works, and the contrast rules every interface should respect.
Design · 7 min read
How temporary inboxes work, the sign-up spam they eliminate, the accounts you should never attach them to, and honest limits like missing senders and vanishing addresses.
Privacy · 6 min read
The five fields of a cron line explained field by field, the step, range and list tricks that replace a hundred one-off rules, timezone gotchas, and how to read */5 at a glance.
Explainers · 7 min read
What the symbols in a regex actually mean, why greedy matching surprises everyone, the five patterns that cover most everyday work, and how to stop fearing the world's most useful mini-language.
Explainers · 8 min read
A JWT is three Base64 blocks separated by dots, not encrypted magic. Learn what each part contains, why the signature matters more than the payload, and the classic expiry mistakes.
Security · 7 min read
MD5 checksums, encrypted backups and Base64 attachments are three different things that all "transform data." Learn which one is reversible, which one proves integrity, and which one people misuse.
Security · 7 min read
Spaces become %20, ampersands become chaos, and pasting a URL with an emoji can fail silently. Learn how URLs are actually structured and why encoding exists.
Explainers · 6 min read