~/network ☀ LIGHT apps ← about me

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What Is My IP Address?_

Your public IPv4 and IPv6 addresses, location, ISP, and network details — detected instantly in your browser.

Public IPv4 Address
detecting…
Your public IPv4 · —
Country
—
City / Region
—
ISP / Org
—
ASN
—
Timezone
—
Coordinates
—
Postal Code
—
Network
—
IPv6 Address
detecting…
—
Connection Type & Local IP (WebRTC)
Network Type
—
Local / LAN IP (via WebRTC)
detecting…
The local IP is detected through WebRTC — the same mechanism that can leak your real address behind some VPNs. Modern browsers may show an .local mDNS hostname instead of the raw IP for privacy. The network-type label is a heuristic based on your ISP/ASN, not a definitive VPN test.
Copy Your IP

Internet Speed Test

Measure your real download speed, upload speed, latency and jitter directly in your browser — no plugins required.

📡
Ping / Latency
—
ms
〜
Jitter
—
ms
⬇
Download
—
Mbps
⬆
Upload
—
Mbps
Press Run to start the speed test.
Connection Info
Effective Type
—
Downlink Estimate
RTT Estimate
—
Save Data Mode
—

Browser & Device Info

Full details about your browser, operating system, screen, hardware, and supported web capabilities.

Browser & OS
Browser
—
Version
—
Engine
—
Operating System
—
Device Type
—
Language
—
Screen & Window
Screen Resolution
—
Window Size
—
Color Depth
—
Pixel Ratio
—
Touch Points
—
Orientation
—
Hardware
CPU Threads
—
Device Memory
—
Platform
—
Do Not Track
—
Web Capabilities
Raw User-Agent
—

DNS Record Lookup

Look up DNS records (A, AAAA, MX, CNAME, TXT, NS, SOA) for any domain using Google's public DNS-over-HTTPS API.

Enter a domain name and click Lookup
Quick Lookups

IP Address Lookup

Find the location, ISP, and network details of any IPv4 or IPv6 address.

Enter an IP address or domain to look up
Quick Lookups

Network Utilities

Subnet & CIDR calculator, IPv4↔IPv6 converter, MAC address vendor lookup, User-Agent parser, and your HTTP request headers — all instant.

Subnet / CIDR Calculator
IPv4 ↔ IPv6 Converter
MAC Address Vendor Lookup
Resolves the manufacturer registered to a MAC address's OUI prefix via macvendors.com (rate-limited to ~1 lookup/second).
User-Agent Parser
Your HTTP Request Headers
Shows the headers your browser sends on a request, as seen by an echo server (httpbin.org) — useful for checking your User-Agent, Accept-Language and Accept-Encoding.

Encode, Decode & Hash

Base64, URL encoding/decoding, SHA hashes (1/256/384/512), and JWT decoder — all computed locally in your browser.

Base64 Encode / Decode
Input
Output (encoded)
URL Encode / Decode
Input
Output (encoded)
SHA Hash Generator
Input text
Type something above to generate hashes
JWT Decoder
JWT Token
Paste a JWT token above to decode it
FAQ — Frequently Asked Questions about Network Tools

Frequently Asked Questions — Network Tools

What is my IP address and how can I find it quickly and securely?

Your IP address is a unique identifier assigned to your device on the internet, functioning like a postal address for data transmission. This network tool instantly displays both your public IP address (how servers see you from across the internet) and your local network information (how devices on your home/office network identify you). Understanding your IP is useful for troubleshooting connectivity issues, configuring remote access, setting up port forwarding, security monitoring, and understanding your internet identity. The tool provides this information instantly without storing your data or requiring registration.

How do I run a free speed test online and what specific metrics does it measure?

A free speed test measures your internet connection's download speed (how fast data flows to you), upload speed (how fast you send data), and latency or ping (the delay in communication). This online speed test helps identify connection bottlenecks, verify your ISP's advertised speeds against actual performance, troubleshoot slow networks, and understand connection quality for specific applications like video streaming, gaming, or video conferencing. Results appear instantly with no software installation required.

What is DNS lookup and how do I test my DNS configuration?

DNS lookup is the process of translating human-readable domain names (like google.com or jasperbernaers.com) into numerical IP addresses that computers understand. This network tool online provides comprehensive DNS lookup results, displaying A records (domain IP), MX records (email routing), NS records (nameservers), CNAME records (aliases), and TXT records (text data). Essential for diagnosing domain routing problems, email delivery failures, SSL certificate issues, and understanding your domain's DNS configuration.

Can I check my network speed without downloading software or installing apps?

Yes, completely browser-based. This online speed test requires zero installation or plugins—just open in your browser and run unlimited tests from any device. No software cluttering your system, no version updates, no compatibility issues. Run speed tests whenever you want to monitor connection performance, identify peak usage times, or troubleshoot ISP-related issues.

What other network diagnostic tools are included besides IP lookup and speed test?

This comprehensive network tools online suite includes multiple diagnostic utilities: IP address lookup with geolocation, free speed testing, DNS lookup and analysis, ping testing for latency measurement, traceroute analysis for route visualization, port checking for accessibility verification, and whois lookup for domain ownership information. All essential network diagnostics for IT professionals, system administrators, developers, and anyone troubleshooting connectivity or security issues combined in one platform.

How accurate and reliable is the free speed test provided on this site?

The speed test uses industry-standard measurement protocols and methodologies to ensure accuracy comparable to major speed testing services. Real-time metrics show your actual connection performance for downloads, uploads, and latency. Note that Wi-Fi connections may show higher variability than wired ethernet connections. For most consistent results, use wired connections and close other applications during testing.

Can I use this IP lookup tool to investigate or research unknown IP addresses?

Yes, the IP lookup function provides geolocation information, ISP identification, organization details, and technical specifications for any public IP address. Useful for website analytics, understanding incoming traffic, security monitoring, fraud investigation, and understanding which services are connecting to your systems or networks.

Is this tool free?

Yes, completely free. One of 122 free tools at jasperbernaers.com.

Free network tools, all in your browser

This page is a complete network toolkit that runs entirely client-side — no signup, no install, and nothing stored on a server. Find what your IP address is (both IPv4 and IPv6), run a real internet speed test, look up DNS records for any domain, geolocate any IP address, and reach for utilities like a subnet calculator, MAC vendor lookup and a User-Agent parser. Everything works on Windows, macOS, Linux, Android and iOS straight from the browser.

Public vs local IP

Your public IP is how the internet sees you; your local (LAN) IP identifies your device on your own network. We show both, and flag possible WebRTC leakage.

Speed, latency & jitter

Download and upload throughput over parallel connections, plus ping and jitter — the variation in latency that affects calls and gaming.

DNS records

Resolve A, AAAA, MX, CNAME, TXT, NS and SOA records over encrypted DNS-over-HTTPS to debug routing, email and certificates.

Subnetting & conversion

Turn a CIDR like 10.0.0.0/24 into network, broadcast, mask and host range, and convert IPv4 to IPv6-mapped notation.

Common questions, answered

Why is my public IP different from my local IP? Your router uses NAT, so many devices share one public address while each keeps a private LAN address (typically 192.168.x.x or 10.x.x.x). What is latency vs jitter? Latency is the round-trip delay; jitter is how much that delay fluctuates — low jitter means smoother video calls. What does an A record do? It maps a domain to an IPv4 address, while AAAA maps to IPv6 and MX directs email.

Related free tools

Part of 122 free, no-signup browser tools. A few that pair well with this network toolkit:

Online Notepad QR Generator Password Generator ASCII Generator Azure Naming Text Cleaner All 122 tools →