About PacketNebula

PacketNebula exists because most online tool sites are slow, ugly and nosy. You paste a JWT into a random site and wonder where it just went. You open a subnet calculator and wait for three ad networks to load before you can type. We run networks and systems for a living, and we wanted the tools we would actually use ourselves.

What we believe

• Your input is none of our business. Every tool that can run entirely in your browser does. When a lookup needs a server (DNS, SSL), we say so on the page and we log nothing.
• The answer comes first. Every guide starts with the answer. The background and the theory come after, for people who want them.
• Numbers need sources. When we publish a figure, we link to where it comes from.

Reusing our figures

Every chart and diagram on this site is our own work. You can reuse them for free with a visible link back to the page they come from. That is the whole license.

Contact

Found a bug in a tool, or a number you think is wrong? Tell us through the contact page. Corrections make the site better for everyone.