Free VPN & privacy tools

A small set of free, browser-based tools for self-hosted VPN users - no signup, nothing stored.

• WireGuard config generator

  Generate a ready-to-use WireGuard server and client config in your browser.

• IP & WebRTC leak test

  Check whether your real IP leaks past your VPN; runs entirely in your browser.

• Self-hosted VPN cost calculator

  Estimate the monthly cost of running your own VPN on a VPS.

• wg-easy docker-compose generator

  Build a docker-compose.yml for wg-easy v15, with an HTTPS panel through Caddy or an SSH tunnel.

• WireGuard MTU calculator

  Get the right MTU from a do-not-fragment ping or your link type, with the config line and the test commands.

• WireGuard AllowedIPs calculator

  Route everything except your LAN or an IP: get the exact AllowedIPs line for a split tunnel, IPv4 and IPv6.

• Tailscale exit node generator

  Turn a Linux VPS into a Tailscale or Headscale exit node: full setup script, approval and client commands.

• VLESS REALITY config generator

  X25519 keys, UUID and short ID generated in your browser, with Xray and sing-box configs and a vless:// link.

• WireGuard port checker

  Is UDP 51820 reachable at all? Detect CGNAT and double NAT, get the firewall rule and the test that proves the port is open.

• Tailscale pricing calculator

  Tailscale, Twingate, NetBird or ZeroTier: which free plan still fits your users and devices, what the paid plans cost over 1 to 3 years, and when self-hosting is cheaper.

• vmess / vless link converter

  Paste a vmess://, vless://, trojan:// or ss:// link: read every field, check its security, and get the Xray-core, sing-box and Clash Meta config.

• Headscale config generator

  Self-host the Tailscale control server: config.yaml, Docker Compose or .deb, Caddy or nginx, exit node policy and first commands.

• New Contabo control panel checklist

  Contabo moved every customer to a new control panel on 19 October 2026: tick off the 8 steps (password, tickets, Sub-Users, servers).

• AI robots.txt checker

  Paste your robots.txt and see whether GPTBot, ClaudeBot, PerplexityBot, Google-Extended and OAI-SearchBot are blocked or allowed, and why. Runs locally.