20 posts · browser tools done right
Blog
Practical blog posts for getting the most out of Patrache Studio tools
Tools
Image Compression Guide: Choosing JPG vs PNG vs WebP
Understand lossy vs lossless compression and pick the right format for web, print, and archival use.
PDF Merge & Split in Browser: Why It's More Private
Compare server-based PDF tools with browser-only processing in terms of privacy, speed, and limits.
QR Code Security: Dynamic QR Risks and Shortened URL Traps
Static vs dynamic QR, tracking/expiry risks with URL shorteners, why local generation is safer.
Video Formats Compared: MP4, WebM, MOV, AVI
From container vs codec to choosing the right format for web, editing, and archival.
DevTools
Base64 and URL Encoding: Purpose, Pitfalls, Correct Usage
Binary-safe transport and URL safety: when encoding helps and when it hurts.
JSON Formatting, Validation, and Schema in Practice
Distinguish pretty-printing, syntax validation, and structural validation with JSON Schema.
Regex in Practice: Anchors, Quantifiers, and Capture Groups
Master everyday regex by building anchors, quantifiers, and capture groups from scratch.
UUID v1 vs v4 vs v7: Picking a DB Primary Key
How each UUID version is generated and how it affects indexing, ordering, and sharding.
Calculator
BMI, BMR, and TDEE: What the Numbers Mean and Don't
How each metric is computed, how to use it, and where its assumptions break down.
Compound Interest and the Rule of 72
Simple vs compound interest and the quick mental math behind the Rule of 72.
Exchange Rate Types: Mid-Market vs Cash vs Wire
Why the same currency has different rates on the same day, and how to compute the real cost.
Loan Payment Types: Amortized vs Equal Principal vs Bullet
Compare cash flow, total interest, and risk across three common loan repayment structures.
Diagno
Audio Latency: Measuring Microphone and Speaker Delay
How buffers, sample rates, and drivers produce latency — and how to measure it end-to-end.
Keyboard NKRO and Input Lag for Gaming
Ghosting and rollover, USB 1KRO/6KRO/NKRO trade-offs, and measuring real input lag.
Monitor Dead Pixel Test: Causes and Warranty Rules
Dead vs stuck pixel, how detection works, and how major brands handle warranty.
Webcam Diagnostics: Frame Rate, Resolution, and Lighting
How sensor, MJPEG vs YUY2, and auto-exposure affect real-world quality.
Daily
Budget Tracking That Lasts: 3 Habit Designs That Work
Based on drop-off research: frequency, categorization, and review rituals that stick.
How Accurate Is Calorie and Protein Logging, Really?
Self-report diet tracking error rates from research, and low-friction alternatives that work.
The 21-Day Habit Myth: What Research Actually Shows
The gap between the 1960s "21-day" anecdote and Lally et al. 2010's actual ~66-day median.
Task Methods Compared: GTD, ZTD, and Bullet Journal
Core principles, tool requirements, learning curves, and who each method fits.