Blacknode is a small company specializing in Computer and Information Security. It provides consulting the following services.

The company is based in Stockholm, Sweden and run by student and security researcher Joakim Uddholm.

It aims to provide a personal, yet professional, security and programming consulting service for you.

Tools & Services.

These are some free tools and services created by Blacknode.

Burn After Reading

URL: https://burn.blacknode.se
Source code: On github
A simple webservice for sending short lived secrets like passwords. Secrets are encrypted clientside using javascript and stored in memory with an expiry time.


URL: https://ip.blacknode.se
A "what-is-my-ip" service without any fuss. Free to use, so long as it does not get abused.


Want to get in touch? The message will be encrypted in your browser to ensure confidentiality.

Your name, email address and message will be encrypted with GPG here in the browser, then sent via email to me. Doing so ensures that the message cannot be manipulated or read when in transit between the mail servers.

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