Free online network diagnostics and developer tools for engineers and IT professionals
Test, debug, and evaluate MCP servers across every major AI client
Stage
Not given
Not given
Founded
Not given
Not given
Based in
BD
US
Pricing model
Free
Freemium
Pricing
Web Utility Suite: Free forever with complete access to all web-based diagnostic tools via browser, unlimited queries, no registration required. Programmatic API: Coming Soon.
Free: $0/mo with 200 credits/day and 500 free eval iterations. Pro: $24/mo (billed annually at $288/year) with 5,000 credits/mo. Team: $199/mo (billed annually at $2,388/year) with 50,000 credits/mo. Enterprise: Custom pricing. Additional credits: $10 per 1,000 credits (Pro), $9 per 1,000 credits (T
Key features
IP Lookup with geolocation, ISP, and ASN detection
DNS Lookup and query of multiple record types (A, AAAA, MX, CNAME, TXT, NS, SOA, CAA, PTR)
Subnet Calculator for IPv4 CIDR blocks and network calculations
Port Checker for TCP port connectivity testing
SSL Certificate Checker with expiration and TLS protocol verification
WHOIS Lookup for domain registration details
JSON Formatter and Validator with tree view and syntax error detection
Base64 Encoder and Decoder with file and image support
cURL to Code Converter supporting 7 programming languages
UUID v4 and UUID v7 generator with RFC 9562 compliance
Not given
What makes it different
100% free with no account, email, or payment required
Native Node.js execution for sub-second response times without queue delays
Privacy-focused with zero query logging and strict SSRF security filters
28 tools in one place covering both network diagnostics and developer utilities
All tools run in browser with no software installation or configuration required
Tests how external AI clients use your MCP server, not just how your code runs
Open source core runs locally or in your own CI, never sees live traffic
Evaluations score tool choice and goal completion across repeated runs, not brittle assertions
Automatically maintains current behavior of 16+ AI clients so your tests stay relevant
Framework and deployment agnostic: works with any MCP server however it was built