Free Proxy & Network Tools

Test proxies, check your public IP, verify IPv6, estimate bandwidth, and run WebRTC leak tests. Free, no signup.

No Registration Required

Runs in Your Browser

Always Free

Updated April 26, 2026

Checkers use our API or DNS; browser tools run locally with no rate limits.

Online Proxy Checker

Test proxy speed, protocol type, exit IP, and location. Supports HTTP, HTTPS, SOCKS4, and SOCKS5 with bulk checking.

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IP Address Checker

Public IPv4/IPv6, ISP, ASN, and location details — fast lookup with no signup.

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IPv6 Compatibility Checker

Check if domains support IPv6 using A, AAAA, MX, and NS lookups before deploying IPv6 proxies or dual-stack traffic.

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Bandwidth Estimator

Single or Multi API: measure size, sum workflow with Next, project GB & cost — extension for CORS (Hotmail, Google).

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WebRTC Leak Test

Quick ICE candidate scan to see if WebRTC exposes IPs outside your VPN or proxy tunnel.

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Chilly Proxy extension

Separate Chrome and Firefox builds — multi-proxy save, URL measure without CORS.

Download ZIP →

Which tool should you use?

Tool Best For Input Output
Proxy Checker Bulk testing proxies before production One or more proxies Status, protocol, exit IP, country/city
My IP Checker Checking visible public IP identity No input IPv4/IPv6, ISP, ASN, geo, timezone
IPv6 Checker Domain IPv6 readiness validation Domain or URL A, AAAA, MX, NS + IPv6 addresses
Bandwidth Estimator Job volume and cost planning GB/day, days, $/GB Total GB and estimate
WebRTC Leak Test VPN/proxy privacy check One click ICE candidates list

Why use proxy tools?

Verify proxy masking: confirm IP and location before running scrapers, bots, or QA flows.

Check geo-targeting: verify exit region for localized pricing, ads, and content checks.

Catch issues early: spot dead proxies, wrong protocols, or missing IPv6 support before deploy.

Need reliable proxies?

Chilly Proxy offers premium residential and datacenter proxy plans with flexible billing and geo-targeting across 195+ countries.

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Frequently asked questions

Which tool should I use first?
Start with the IP checker, then run proxy checker for lists, and use IPv6 checker before IPv6 proxy deployment.

Do I need an account?
No. All tools are open with no signup, no login, and no credit card.

Do these tools work on mobile?
Yes, they are responsive and work in modern mobile browsers.