Developers & IT Pros
33 toolsNetwork diagnostics, browser testing, and hardware validation tools. DNS lookup, IP analysis, system diagnostics, display calibration, and accessibility checking.
IP Lookup
Look up any IP address or domain to see its location, ISP, VPN status, and more.
DNS Lookup
Look up DNS records for any domain. All record types supported, results from multiple resolvers.
WHOIS Lookup
Look up registration details for any domain name including registrar, dates, nameservers, and DNSSEC status.
Redirect Checker
Enter a URL to see the full redirect chain with HTTP status codes, response times, and server details.
Checksum Calculator
Hash any file with 6 algorithms. Verify downloads, compare files, find duplicates.
IPv6 Test
Test your IPv6 support, detect connection type, compare latency, and check for leaks.
Cookie Checker
Scan any website to discover all cookies, trackers, and privacy risks in seconds.
Browser Fingerprint
See how unique and trackable your browser is. Analyze 8 fingerprint vectors with visual previews and privacy rating.
What Is My Browser
Instantly detect your browser, OS, screen, hardware, codecs, and web API support. Copy all info for tech support or download a PDF report.
WebRTC Leak Test
Check if WebRTC is exposing your real IP address. Detect local, public, and mDNS candidates with real-time monitoring.
System Diagnostics
Check CPU, GPU, memory, battery, storage, network, and browser capabilities. Get a health score, run a benchmark, and receive personalized recommendations.
VPN Checker
Check if your VPN is working and test for IP, DNS, and WebRTC leaks. Instant anonymity score with detailed results.
Secure USB Wipe
Overwrite files with random data before deletion — make recovery impossible. Works on USB drives, SD cards, and any folder. No software to install.
QR Code Generator
Generate customizable QR codes for URLs, text, WiFi, vCard, email, SMS, phone, WhatsApp, and locations.
USB Drive Tester
Detect fake USB drives and verify real capacity — like h2testw, but in your browser.
Vibration Test
Test your device vibration motor with patterns, diagnostics, and a custom builder.
Refresh Rate Test
Measure your monitor refresh rate with precision frame timing. Detect Hz, analyze jitter, explore display capabilities, and test motion smoothness — all in your browser.
Battery Checker
Free online battery checker.
Dead Pixel Test
Check your screen for dead, stuck, and hot pixels with 21 test patterns and built-in repair tool
Phone Display Test
Check your phone screen for dead pixels, touch issues, backlight bleed, burn-in, and color accuracy.
Keyboard Test
Test every key, detect ghosting, measure latency and typing speed
Gyroscope Test
Test your phone's gyroscope, accelerometer, and motion sensors. 3D visualization, spirit level, graphs, accuracy test, CSV export.
Bluetooth Audio Test
Test any Bluetooth audio device: headphones, speakers, earbuds, car audio. Measure latency, check speaker channels, test mic quality.
Printer Test
Check your printer in seconds with Quick Test or run detailed diagnostics with Professional mode. Color bars, nozzle check, grayscale, text sharpness, and more.
