URL

Center logo (optional)

Format

strangstad.com

Live strangstad.com in this format. The screen is not clickable.

WireGuard config builder

Build server and client configs in your browser. Demo keys are random bytes for illustration — use wg genkey and wg pubkey for real deployments.

Enable IP forwarding and firewall NAT on the server before production use. Prefer real WireGuard tooling for keys.

Advanced password generator

Cryptographically strong passwords and passphrases generated locally in your browser. Nothing is sent to stech servers.

A–Z a–z 0–9 Symbols Avoid ambiguous (0OIl1) Require each selected set

Tip: use a password manager. We never see these values.

Hash text locally

SHA-256, SHA-1, and SHA-512 in your browser. Nothing is uploaded.

Input File Compare to (Rune checksum)

For checksums and demos — not a substitute for proper password hashing (bcrypt or argon2).

UUID generator

RFC 4122 version 4 UUIDs via crypto.getRandomValues — generated locally.

Subnet and CIDR calculator

IPv4 subnet math entirely in your browser — planning LANs and on-prem installs.

Encode and decode

Input Output

JWT decoder

Decode header and payload only — no signature verification and no secret handling. Stays in your browser. Never paste production secrets here; redact tokens if sharing screenshots.

JWT

Header

Payload

Cron helper

Certificate workshop

Paste a public certificate, a chain, or a CSR. We decode what we can in the browser: type, size, SHA-256 fingerprint, dates, and host-like names. Private keys are refused. This is a helper, not a CA.

Public PEM (certificate, chain, or CSR)

Commands on a machine you trust

openssl x509 -in cert.pem -text -noout
openssl x509 -in cert.pem -noout -fingerprint -sha256
openssl req -in req.csr -text -noout
openssl verify -CAfile ca.pem cert.pem
openssl s_client -connect host:443 -servername host </dev/null 2>/dev/null | openssl x509 -noout -dates

Site brief

Where the site is, who uses it, what already runs. Same questions as contact — plus a map, a LAN, and the stack.

Place Kind of site Rooms People Already have mail? Linux already? Air-gap Deadline Site LAN Travel Hours

Stack Saga + Rune + Edda Hermod Aella + Stella + Skjal Heim Thala

Notes

Map is OpenStreetMap. Pin a town or use your location — we do not store it on the server.

Install checklist

Saga + Rune + Edda
Site Identity
Mail (Hermod or existing)
Aella + Stella + Skjal
Heim rooms
Thala servers
Linux on workstations
Travel / on-site day booked

Markdown to HTML

Markdown

Preview

MAC and UUID tools

Lab and documentation helpers only — generate locally administered MACs for VMs and docs, not for spoofing live networks you do not own.

Named palette

Converter

Output