Free proxy tools
Six free tools for anyone who works with proxies: check which proxies are alive, see the IP websites see, test for leaks, inspect your browser fingerprint, convert list formats and estimate costs. No sign-up, and they work with proxies from any provider.
- Free, no sign-up
- Works with any provider
- Five of six run entirely in your browser
Pick a tool
Each one opens on its own page and is ready to use.
Free proxy checker
Paste up to 50 proxies and see which ones work, with the response time for each.
Tested from our server
What is my IP
Your public IPv4 and IPv6 address as websites see it, plus what your browser tells them.
Runs in your browser
WebRTC leak test
Find out whether your browser gives away your real IP behind a proxy or VPN.
Runs in your browser
Browser fingerprint checker
Canvas, graphics card, fonts, screen and time zone, with checks for values that contradict each other.
Runs in your browser
Proxy format converter
Turn any proxy list into host:port:user:pass, user:pass@host:port, URL, curl or JSON, in bulk.
Runs in your browser
Proxy cost calculator
Estimate the GB a job needs and see the cheapest way to buy it on each product.
Runs in your browser
Which tool answers which question
| Your question | Tool |
|---|---|
| Which of these proxies still work? | Free proxy checker |
| Is my proxy on? Which IP do websites see? | What is my IP |
| Does my browser leak my real IP around the proxy? | WebRTC leak test |
| What else can a site read from my browser or profile? | Browser fingerprint checker |
| My tool wants the list in another format | Proxy format converter |
| How many GB do I need, and what will it cost? | Proxy cost calculator |
Check a proxy setup in three steps
The order most people need when they set up a new proxy or a new browser profile.
Step 1
Is the proxy alive?
Run your list through the proxy checker and keep the lines marked Working.
Step 2
Is it hiding you?
Connect through the proxy, open What is my IP, then run the WebRTC leak test. Both should show the proxy, not you.
Step 3
Does the browser fit?
Open the fingerprint checker in the same profile and clear any warnings, so time zone, language and hardware agree with the IP.
Questions about the tools
Are the tools really free?
Yes. There is no sign-up and no payment. The proxy checker has fair-use limits, and nothing else is limited.
Do I need to be a VantixProxy customer?
No. The tools work with proxies from any provider, and with no proxy at all.
What happens to what I enter?
Five of the six tools run entirely in your browser, so what you paste or what they read never leaves your device. The proxy checker sends your list to our server to run the test and discards it afterwards. What is my IP and the WebRTC leak test contact a public IP echo service and a public STUN server, which is how they learn your address. The Privacy Policy lists them.
Can I use the tools with an anti-detect browser?
Yes, and that is where they are most useful. Open them inside the profile you want to check, with that profile’s proxy switched on.
Need proxies to go with the tools?
Residential IPs in 195 countries from $4.75 that never expire, or monthly plans from $0.49/GB. No KYC, crypto or card.