Guides & how-tos
Short, practical writing about the tools you use every day.
- ·5 min read
How to Compress a PDF Without Losing Quality (2026 Guide)
A practical walkthrough for shrinking PDF file size while keeping text sharp and images clean — no software installs required.
Read - ·4 min read
JPG vs PNG vs WebP: Which Image Format Should You Use?
A clear, no-nonsense comparison of the three most common web image formats — with a decision tree so you never guess again.
Read - ·6 min read
A Regex Cheatsheet for Everyday Tasks (No PhD Required)
The regex patterns you actually use in real work — validating emails, extracting numbers, cleaning text — with copy-paste examples.
Read - ·3 min read
Unix Timestamps Explained (and How to Convert Them)
What Unix time is, why every backend uses it, and how to translate between epoch seconds and human-readable dates in one click.
Read - ·4 min read
How to Make a Password That Actually Can't Be Cracked
Why length beats complexity, why 'P@ssw0rd!' is terrible, and how to generate and remember truly strong passwords.
Read - ·5 min read
JSON Formatting and Validation: The Complete Practical Guide
Pretty-print, validate and debug JSON like a pro — with the common mistakes that break APIs and how to spot them in seconds.
Read - ·4 min read
How to Make QR Codes That Actually Scan (Every Time)
The design rules that separate a QR code that works in dim light from one that fails at the checkout counter.
Read - ·4 min read
SVG vs PNG: When to Use Each (and When It Matters)
A designer-friendly breakdown of vector vs raster — what to use for logos, icons, illustrations and photos, and why it changes your page speed.
Read - ·3 min read
How to Merge PDF Files Online for Free (Step by Step)
Combine two or more PDFs into a single document in seconds — no software, no watermark, no upload. Works on phone and desktop.
Read - ·3 min read
Convert Image to PDF Online (JPG, PNG, HEIC) — Free & Private
Turn one photo or a stack of images into a single PDF — perfect for scanned documents, receipts and portfolios. No sign-up, no upload.
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