Free tools for
better connections.
From your public IP to a working proxy configuration. Practical tools, free to use, with no login required.
Local tools keep inputs in your browser. DF-IP handles IP lookups. My IP checks automatically when opened; other lookups start when you run them.
IP and network lookups
Work locally in your browser
Proxy format converter
Convert and deduplicate proxy lists locally, then export URIs or CSV.
Open toolProxy configuration generator
Generate proxy URIs and curl examples for your operating system.
Open toolIP / CIDR calculator
Calculate subnets, address ranges and exact IPv4 / IPv6 counts locally.
Open toolBrowser environment check
Inspect language, time zone, screen dimensions and feature support locally.
Open toolFrom a check to a connection
Check your current exit, organize your proxy list, then generate a connection example. Use the Windows client and product guides to complete your setup.
Useful results, clear limits
A valid format does not prove a proxy is online. Geolocation is not a risk rating. Each tool explains its limits.