Who I am
Behind bitcalc.net is IT Expert Roberto — more than 25 years in IT, with a soft spot for networking, storage and everything that quietly hums along in the server room. By day I manage servers, switches and firewalls; at night the small tools I missed during the day get built here.
Why bitcalc?
The idea is simple: most online tools send your data somewhere — often to the US, often into a database you can never get rid of. I did not want that. Every calculator on bitcalc runs entirely in your browser: you enter an IP, a hash comes out, and nothing leaves your machine. No account, no tracking, no hidden data grab.
How the tools are made
Every tool here has a real trigger: the subnet calculator, because I constantly needed a CIDR calculator in my head when designing VLANs. The RAID calculator, because ordering a server without a capacity calculation is just guessing. The password generator, because the browser's built-in manager is not always at hand. The tools were not born from a marketing plan but from daily work — and that is how they are maintained.
Technology & transparency
- 100 % client-side: All calculations run in your browser (Vanilla JS). There is no server that receives your input.
- Cryptographically sound: The password and hash generators use the Web Crypto API instead of Math.random().
- No profiling: Matomo runs cookieless with IP anonymization — the minimal measurement needed for further development, nothing more.
- Advertising you control: Ads only appear if you opt in via the cookie consent. Without consent the site stays completely ad-free.
- Honest labeling: Some illustrations are AI-generated and labeled as such. Content is editorially reviewed.
Contact & feedback
Found a bug, missing a tool, or a calculation looks off? Email me at info@bitcalc.net — I usually reply within a few days. Real feedback from day-to-day admin work is the most important input for this project.
Last updated: August 2026