Compyrix Blog
Guides, tutorials, deep dives, and release notes to help you get the most out of every tool.
Introducing Compyrix: 19 Free Tools (and 48 More Coming Soon)
We launched Compyrix with a simple mission: build the best free tools website on the internet. Here is what is available today, what is coming, and the principles that guide every design decision.
Latest Articles
Password Security in 2026: A Practical Guide for Real People
Passwords are still the most common form of authentication. Learn exactly how long, how complex, and how unique your passwords really need to be — plus why reusing even one password is the fastest path to getting hacked.
How to Write YouTube Titles That Actually Get Clicked (Data From 1,200 Videos)
We analyzed 1,200 YouTube videos across 6 niches to find out which title patterns doubled CTR and which ones flopped. The findings are surprisingly simple and anyone can apply them today.
BMI Explained: What the Number Actually Means (And What It Misses)
BMI is everywhere — from doctor visits to health apps — but hardly anyone understands how it is calculated or its limitations. We break it down in plain language and tell you exactly when to trust it and when to ignore it.
I Used 50 Free Online Productivity Tools For a Week. Here Are The Only 6 Worth Your Time.
A deep, week-long audit of 50 popular free tools across calculators, converters, formatters, and AI assistants. Most are mediocre, a few are genuinely excellent, and some are actively harmful. Here is the honest ranking.
Under the Hood: How We Built Browser-Side Calculators That Never Phones Home
A technical deep dive into the architecture of Compyrix: why we went all-in on client-side JavaScript, the trade-offs we made, and how to verify for yourself that no data is ever uploaded — even with DevTools open.