🛠️ Network Toolkit

Look up domain registration info, expiry date, registrar and other WHOIS data.

Check a website's SSL/TLS certificate validity, issuer and covered domains.

Inspect the HTTP response headers of any URL, including status code, cache settings and security headers.

Test the network latency to a host (simulated via TCP connection).

Scan a host for open ports across 19 common services: FTP, SSH, HTTP, HTTPS, MySQL and more.

Check if an IPv4 address is listed on Spamhaus, SpamCop, SORBS and 5 other spam blacklists.

Shorten long URLs for easy sharing. Free, no registration needed.

Generate strong random passwords using browser crypto.getRandomValues(). Nothing is sent to the server.

Compute MD5, SHA-1, SHA-256 or SHA-512 hash of any string — all done locally in your browser.

Encode or decode Base64 strings locally in your browser. Nothing is uploaded to the server.

URL-encode or decode strings using encodeURIComponent, processed locally.

Prettify or minify JSON strings — processed locally in your browser.

Convert between Unix timestamps and human-readable dates.

Current Timestamp:

Enter a CIDR notation (e.g. 192.168.1.0/24) to calculate network range, broadcast address and usable host count.

Generate QR codes locally in your browser from text, URLs, phone numbers and more.

Convert between HEX, RGB and HSL color codes with live preview.

Look up the geolocation, ISP and rDNS of any IP address.

Visit the homepage to look up your current IP address.