Precision Developer
Tools for macOS
Fast, focused diagnostic utilities for network engineers, security auditors, and software developers. Direct execution, crystal-clear readability, zero ads.
Free community edition • Daily quota refresh
Frequently Used Utilities
Essential diagnostic, networking, and payload inspection tools
IP Lookup
Look up geographical location, ISP, ASN, hostname, and network details for any IPv4 or IPv6 address.
DNS Lookup
Query DNS records (A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, PTR) via DNS-over-HTTPS.
ASN Lookup
Inspect Autonomous System Numbers, BGP routing prefixes, owner organization, and peering details.
Subnet & CIDR Calculator
Calculate network range, broadcast address, netmask, wildcard mask, and usable host counts for CIDR blocks.
HTTP Headers Inspector
Inspect raw response headers, HTTP protocol version, status codes, and server signatures of any public endpoint.
My Connection & IP
Instantly view your public IP address, User-Agent, approximate location, ISP, and connection properties.
WHOIS / RDAP Lookup
Query domain registration records, registrar details, registration dates, expiration, and domain status.
MX & Mail Server Lookup
Examine MX (Mail Exchange) records, server priorities, hostnames, and IP resolutions for email delivery.
Browse by Technical Suite
Organized suites for network infrastructure, domain resolution, security, and developer formatting
Network
IP addresses, routing, DNS records, subnets, and connection diagnostics.
Domain
WHOIS registry, DNS records, MX mail exchangers, and SSL/TLS certificates.
Web
URL inspection, HTTP status codes, headers, OpenGraph metadata, and robots.txt.
Security
Cryptographic hash generation, JWT decoding, security headers, and password utilities.
Phone
Phone number validation, carrier detection, E.164 formatting, and international dial codes.
Geolocation
IP geolocation, geographic coordinates, geohash, and country metadata.
Developer
JSON tools, UUID/ULID generation, regular expressions, timestamps, and encoders.
Wasee / Wyzuk — Independent Engineer
WTOOLS was crafted to deliver a native desktop feel in the browser. Pure lightweight execution, no bloated JavaScript runtime trackers, no paywalls.