All Tools
Every utility we offer, organised by category. All tools run entirely in your browser — no signups, no data sent to servers.
Network & Infrastructure
Subnet calculators, DNS lookups, IP tools, and other network utilities.
Subnet/CIDR Calculator
Calculate network address, broadcast address, usable hosts and more from any IP/CIDR input.
DNS Lookup
Query A, AAAA, MX, TXT, CNAME, NS, SOA, and PTR records for any domain.
HTTP Headers Checker
Inspect any URL's response headers and analyse security header configuration.
SSL Certificate Checker
Check SSL certificate expiry, issuer, SANs, and validity for any domain.
IP Address Converter
Convert between decimal, binary, hex, and integer IP address formats.
CIDR Range Visualiser
Visualise IP ranges and see overlap between CIDR blocks.
VLAN CalculatorComing Soon
Plan VLAN subnetting and calculate usable address ranges.
Bandwidth CalculatorComing Soon
Convert between bandwidth units and estimate transfer times.
Port ReferenceComing Soon
Quick reference for common TCP/UDP ports and their services.
Developer Utilities
Encoding, formatting, generation, and conversion tools for developers.
JSON Formatter & Validator
Format, validate, and minify JSON instantly. Shows precise error locations for invalid input.
Base64 Encoder/Decoder
Encode text or files to Base64, decode Base64 strings, with URL-safe and UTF-8 support.
Regex Tester
Test regular expressions in real time with match highlighting, capture groups, and position info.
Cron Expression Builder
Build cron schedules visually or parse existing expressions. Shows next run times.
UUID GeneratorComing Soon
Generate v4 UUIDs in bulk with one click.
Hash GeneratorComing Soon
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any input.