Test & Fix Your Internet
with 20+ free diagnostic tools
Free suite of online tools to test and diagnose internet problems: speed, security, DNS, latency, Wi-Fi signal, subnets and more. Everything runs in your browser, no downloads.
Choose a category
IP Addressing
6 free tools
Diagnostics & Connection
7 free tools
Wi-Fi & Signal
3 free tools
Email & Domain
3 free tools
Security
2 free tools
Reference
2 free tools
Frequently asked questions
Is RouterFixer free?
Yes. All tools are 100% free, no sign-up and no limits.
Is my data really private?
Yes, privacy first: calculations run on your device and your IP and network go nowhere. Only the connection tools (speed test, latency, complete check and DNS lookup) make network requests, using Cloudflare public services; see the Privacy Policy.
Are the tools fast?
They're instant. No queue, no upload and no waiting: the tools respond as you type.
Do I need to be technical to use it?
No. RouterFixer was built both for IT students and network admins and for anyone who just wants to fix their home Wi-Fi.
Do I need to install an app?
No. Everything works right in your browser, on desktop or mobile.