IT & Network Tools
16 highly secure, client-side data formatting, parsing, and networking utilities.
Subnet Calculator
Free IP Subnet Calculator to instantly calculate network subnets, CIDR, broadcast addresses, and IP ranges online.
Client-sideIPv4 to IPv6 Converter
Instantly convert IPv4 addresses to IPv6 mapped and transition formats online for free.
Client-sideStrong Password Generator
Generate secure, random, and uncrackable passwords online with our free Strong Password Generator.
Client-sideCHMOD Calculator
Free visual CHMOD calculator to instantly generate Linux and Unix file permissions.
Client-sideMAC Address Lookup
Free MAC Address Vendor Lookup tool. Instantly find the manufacturer of any networked device using its OUI.
Client-sideJSON Formatter & Validator
Free JSON Formatter to beautify, parse, and validate JSON data instantly online.
Client-sideYAML to JSON Converter
Convert YAML to JSON and JSON to YAML instantly with this free online developer tool.
Client-sideBase64 Encoder / Decoder
Free Base64 Encoder and Decoder online to safely encode text and data strings.
Client-sideRegex Tester
Free online Regex Tester to build, test, and debug regular expressions instantly.
Client-sideHash Generator
Generate secure SHA-1, SHA-256, and SHA-512 hashes instantly from any text.
Client-sideJWT Decoder
Decode JSON Web Tokens (JWT) safely to view their header and payload claims.
Client-sideCron Job Generator
Visual Cron expression generator and parser for Linux and Unix scheduling.
Client-sidePing Test
Ping any hostname or IP address online. Check server reachability and response time.
Port Scanner
Scan common TCP ports on any IP address or domain name instantly. Check your firewall security.
DNS Lookup
Perform an advanced DNS lookup to check A, AAAA, MX, NS, CNAME, and TXT records.
SSL Checker
Check the validity, expiration date, and issuer of any SSL/TLS certificate online.