Free technical utilities
Server and developer tools
Practical utilities for common infrastructure tasks. Inputs are processed locally in your browser unless a tool explicitly states otherwise.
Networking
IP Address & Geo Location Lookup
Detect your public IP address, geolocation, ISP, ASN, reverse DNS, and network details instantly.
Open toolNetworking
What Is My IP Address
Quickly find your public IPv4/IPv6 address, location, and internet provider information.
Open toolNetworking
DNS Records Lookup
Query and inspect live A, AAAA, CNAME, MX, TXT, NS, and SOA DNS records for any domain name.
Open toolNetworking
Open Port Checker
Test whether common ports (22 SSH, 80 HTTP, 443 HTTPS, 3389 RDP, 3306 MySQL) or custom ports are open and accessible.
Open toolSecurity
SSL / TLS Certificate Checker
Verify SSL certificate validity, issuer authority, expiration date, SANs, and cipher suite support.
Open toolSecurity
HTTP Headers & Security Inspector
Analyze HTTP status codes, redirect chains, server headers, and security headers (HSTS, CSP, X-Frame).
Open toolNetworking
Global Latency & Ping Test
Measure real-time HTTP latency and round-trip times to global datacenter regions.
Open toolWebsite Planning
Website Requirements Builder
Create and submit a structured website project brief covering scope, features, budget, hosting, SEO, and timing.
Open toolSecurity
Password Generator
Generate strong random passwords locally with the browser Web Crypto API.
Open toolNetworking
CIDR Calculator
Calculate an IPv4 network, broadcast address, subnet mask, and usable host range.
Open toolNetworking
Subnet Calculator
Explore IPv4 prefix lengths, subnet masks, address counts, and usable hosts.
Open toolOperations
Cron Expression Generator
Build and review a standard five-field cron schedule expression.
Open toolDevelopment
UUID v4 Generator
Generate cryptographically random UUID v4 identifiers locally.
Open toolDevelopment
JSON Formatter
Validate, format, or minify JSON locally without uploading it.
Open toolDevelopment
Base64 Encoder and Decoder
Encode or decode UTF-8 text as Base64 locally. Base64 is not encryption.
Open toolDevelopment
JWT Decoder
Inspect JWT header and payload JSON locally without uploading the token.
Open toolOperations
Linux Command Builder
Build common Linux file, service, package, and log-inspection commands from explicit options.
Open toolOperations
Nginx Config Generator
Generate a reviewable Nginx reverse-proxy server block for a hostname and local application port.
Open toolDevelopment
Docker Compose Generator
Generate a minimal Docker Compose service definition from validated project settings.
Open toolTechnical SEO
SERP Snippet Preview
Preview a page title, URL, and meta description in a search-result layout with practical length guidance.
Open toolTechnical SEO
On-Page SEO Auditor
Inspect pasted HTML for titles, descriptions, headings, canonical links, images, crawlable links, and structured data.
Open toolTechnical SEO
Robots.txt Rule Tester
Test a URL path against pasted robots.txt user-agent groups using a clearly documented local rule evaluator.
Open toolInternational SEO
Hreflang Validator
Validate pasted hreflang language-region codes, URLs, duplicates, self-reference, and x-default coverage locally.
Open toolTechnical SEO
Schema Markup Validator
Parse JSON-LD and review core Schema.org structure locally without claiming Google rich-result eligibility.
Open toolContent Strategy
Keyword Cluster Planner
Group pasted keyword ideas by shared terms and inferred intent without inventing search volume or competition data.
Open tool