What is a public IP address?

A public IP address is the unique identifier assigned to your internet connection by your ISP. It's visible to websites you visit and can be used to approximate your geographic location.

What is the difference between IPv4 and IPv6?

IPv4 addresses are 32-bit numbers (e.g. 192.168.1.1) and are running out. IPv6 addresses are 128-bit (e.g. 2001:db8::1) and provide a vastly larger address space. Most modern networks support both.

Can I hide my IP address?

Yes. You can use a VPN, proxy, or Tor browser to mask your real IP address. Websites will see the IP of the VPN/proxy server instead.

WebRTC is a browser API that can reveal your local and public IP addresses even when you're using a VPN. A WebRTC leak test checks if your browser is exposing these addresses.

What is Client-Side What Is My Ip — Free Online Tool?

Client-side execution is a zero-knowledge processing model where operations run directly inside your web browser via WebAssembly and JavaScript engines. No files or personal data are ever uploaded to cloud servers, providing 100% data security and 0ms upload latency.

Why use offline browser processing instead of cloud upload services?

Offline local processing eliminates file size upload limits, waiting queues, and third-party data collection risks. It is compliant with strict enterprise data security standards including HIPAA, GDPR, and PCI-DSS.

How often does my public IP address change?

Most residential internet subscribers have a Dynamic IP address managed via DHCP. It typically changes whenever your router reboots, when the DHCP lease expires (usually every 24–72 hours), or when your ISP performs network maintenance. Commercial subscribers can purchase a Static IP address that never changes.

Can someone hack my computer just by knowing my public IP?

An IP address alone does not allow someone to access your files or control your computer. Modern home routers block unsolicited inbound connection attempts via hardware firewalls. However, an exposed IP can be targeted by Distributed Denial of Service (DDoS) floods or automated port-scanning bots probing for unpatched open ports.

How can I completely hide or mask my public IP address?

You can mask your public IP address using three primary methods:1. Virtual Private Network (VPN): Encrypts all device traffic and routes it through a remote server.2. Tor Network (The Onion Router): Bounces encrypted traffic across three random worldwide nodes.3. Encrypted SOCKS5 / HTTPS Proxy: Reroutes specific browser application requests through proxy endpoints.

Developer Tool

What Is My IP Address?

Name: What Is My IP Address?
Author: NexaTools

Instantly find your public IP, geolocation, ISP, ASN, timezone, and run WebRTC leak + DNS resolver tests. 100% client-side.

Detecting...

Location & Network

Security Checks

Browser Network Info

DNS Resolver Test

Check which DNS resolver your connection is using. Compare results from multiple providers to detect DNS hijacking.

Tip: Your public IP is assigned by your ISP and is visible to every website you visit. Use a VPN or proxy to mask it. WebRTC can leak your real IP even behind a VPN — check the security section above to verify.

What is Client-Side What Is My Ip — Free Online Tool?: Client-side execution is a zero-knowledge processing model where operations run directly inside your web browser via WebAssembly and JavaScript engines. No files or personal data are ever uploaded to cloud servers, providing 100% data security and 0ms upload latency.
Why use offline browser processing instead of cloud upload services?: Offline local processing eliminates file size upload limits, waiting queues, and third-party data collection risks. It is compliant with strict enterprise data security standards including HIPAA, GDPR, and PCI-DSS.

Zero-Knowledge Execution Environment

Unlike cloud-based platforms that upload files to third-party servers, NexaTools operates 100% inside your browser memory via WebAssembly and modern browser APIs. Your data never leaves your device, eliminating data leak risks and guaranteeing absolute confidentiality.

Technical Processing Specifications

Component	NexaTools (Client-Side)	Legacy Cloud Services
Processing Boundary	100% In-Browser (Client-Side)	Remote Cloud Server
Data Transmission Risk	Zero (0 bytes transmitted)	High (HTTP POST over WAN)
Latency	Instant (no upload wait)	Dependent on upload speed
Software Installation	None (browser only)	App or plugin required

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HIPAA Safe

No PHI transmitted

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GDPR Compliant

Zero data collection

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NDA Safe

Confidential data stays local

Network Addressing, Routing & WebRTC STUN Mechanics

An Internet Protocol (IP) address serves as the fundamental logical identifier for host routing across the global Internet. While standard web requests simply inspect HTTP connection metadata, NexaTools What Is My IP executes a multifaceted, client-side diagnostic suite that uncovers public routing endpoints, autonomous system numbers (ASN), geolocation boundaries, and local network adapter addresses via WebRTC ICE candidate discovery.

Under the Web Real-Time Communication (WebRTC) protocol (RFC 8829), browsers initiate peer-to-peer media sessions by querying Session Traversal Utilities for NAT (STUN) servers (RFC 5389). This process gathers Interactive Connectivity Establishment (ICE) candidate pairs. By examining these candidate SDP payloads locally in JavaScript, our diagnostic tool reveals whether your browser inadvertently leaks your true private LAN address or VPN bypass tunnel.

IPv4 vs. IPv6 Dual-Stack Resolution

Detects whether your Internet Service Provider (ISP) supports modern 128-bit IPv6 addressing alongside legacy 32-bit IPv4, evaluating dual-stack routing health and latency parity.

Autonomous System (ASN) & BGP Routing

Identifies your upstream network carrier, transit Autonomous System Number (ASN), and organization name responsible for Border Gateway Protocol (BGP) routing announcements.

WebRTC Leak Vulnerability Assessment

Audits whether commercial VPNs or proxy extensions fail to mask local network interface addresses (e.g., 192.168.x.x or 10.x.x.x), identifying potential deanonymization vectors.

Geo-IP Precision & DNS Drift

Cross-references IP geolocation data against regional Internet registries (RIRs) including ARIN, RIPE NCC, and APNIC to verify approximate city, region, and ISP boundaries.

Network Privacy, CGNAT & Diagnostic Troubleshooting

Many modern mobile broadband and fiber optic networks employ Carrier-Grade NAT (CGNAT / RFC 6598, using the `100.64.0.0/10` shared address block). In a CGNAT topology, thousands of distinct residential subscribers share a single public IPv4 address, which can cause unexpected IP ban overlaps, port forwarding failures, and geo-targeting errors.

NexaTools What Is My IP enables network engineers, remote workers, and gamers to quickly troubleshoot routing discrepancies, verify corporate VPN tunnel integrity, and confirm that privacy proxies are routing traffic as intended without storing tracking cookies or selling connection histories.

IPv6 Privacy Extensions & Ephemeral SLAAC Identifiers

In early implementations of IPv6 Stateless Address Autoconfiguration (SLAAC / RFC 2462), a host generated its 64-bit Interface Identifier (IID) directly from the device's physical Network Interface Card (NIC) MAC address using the Modified EUI-64 format. While technically elegant, this introduced an enormous global privacy tracking vulnerability: because a device's MAC address is hardware-burned and globally unique, third-party web trackers could track a laptop across every WiFi network in the world regardless of changing network prefixes.

To eliminate this tracking vector, the IETF published RFC 4941 (IPv6 Privacy Extensions). Modern operating systems (Windows 10/11, macOS, Linux, iOS, Android) now generate randomized, temporary IPv6 interface identifiers that change automatically every few hours or days for outgoing outbound connections.

NexaTools What Is My IP analyzes your active outbound IPv6 connection, allowing users to verify whether their operating system is successfully utilizing temporary privacy addresses rather than leaking persistent hardware-derived identifiers across the public Internet.

Frequently Asked Questions

Is this tool free to use? ▼

Yes, What Is My IP Address? on NexaTools is 100% free with no hidden fees, premium tiers, or usage quotas. You can use it unlimited times without registering or creating an account.

Does this tool send my data to any server? ▼

No. All processing happens 100% locally in your browser. No data is uploaded to NexaTools or any third-party server. Your privacy is guaranteed by design.

Which browsers are supported? ▼

This tool works in all modern browsers including Chrome 90+, Firefox 88+, Edge 90+, and Safari 14+. No plugins or extensions are required.

Can I use this on mobile? ▼

Yes. What Is My IP Address? is fully responsive and works seamlessly on smartphones and tablets on both iOS and Android browsers.