bitcalc

🛠️ IT Tools for Pros

Network, storage, security — fast, precise, free.

What is bitcalc?

bitcalc is a collection of ten tools for your daily IT work — from the subnet calculator to the JSON formatter. Everything runs right in your browser: you enter data, nothing leaves your machine. No registration, no hidden costs, no tracking.

How to use bitcalc

1

Pick a tool

Choose a tool from the grid — from the subnet calculator for VLAN planning to the JSON formatter for API debugging.

2

Enter your values

Type in your values. The result appears live as you type — no page reload, no waiting.

3

Use the result

Copy the result or jump straight to related tools. Your data always stays on your machine.

From the blog

Hands-on knowledge for admins: storage, networking, security — straight from real server work.

🔒 100 % client-side 🚫 No registration 💸 Free forever 🇪🇺 GDPR-friendly

Verfügbare Tools

Warum bitcalc?

🔒 Kein Tracking-Quatsch

Deine Daten bleiben auf deinem Rechner. Alles läuft clientseitig — nichts wird an Server geschickt. Keine Cookies (außer für die Sprache & Matomo cookieless), kein Profiling, keine Werbung, kein Bullshit.

⚡ Sauber schnell

Keine Werbeflut, keine Newsletter-Popups, keine Ladezeiten. Du tippst was ein, kriegst sofort dein Ergebnis. So muss das.

🔧 Von Admins für Admins

Gebaut von jemandem, der selbst in der IT arbeitet. Wenn du auf ein Tool klickst, weißt du: das wurde nicht von einem Marketing-Team ausgedacht, sondern von jemandem, der genau weiß, wann man einen CIDR-Rechner braucht — nämlich jetzt sofort, während der Chef hinter einem steht.

💸 Dauerhaft gratis

Keine „Pro"-Abos, keine versteckten Paywalls. Die Tools sind und bleiben kostenlos — komplett werbefrei, ohne Tracking und ohne Datenverkauf.

Frequently asked questions

Are my inputs stored?

No. All calculations run in your browser — nothing is sent to a server and nothing is stored. Once you close the page, your inputs no longer exist.

What does bitcalc cost?

Nothing. All tools are and will remain free — no subscriptions, no paywalls, no hidden costs. bitcalc is ad-free and is not funded by your data.

Do the tools work offline?

Yes. Once the page has loaded, every calculation runs directly in your browser. You can keep using the page offline.

Who is behind bitcalc?

An IT administrator from Remscheid, Germany, who builds the tools he needs in his own daily work. More on the about page.

Why should I trust bitcalc?

Because nothing has to leave your machine: no data transfer, no account, no tracking. The password and hash generators use the cryptographically secure Web Crypto API — and everything is clearly stated in the imprint.

Who is behind it?

Behind bitcalc is an IT administrator from Remscheid who uses these tools himself every day. Every calculator here grew out of real daily work — not out of a marketing plan.