All tools are free, require no account, and run directly in your browser. Here's what's available:
Network & DNS
- DNS Lookup — Query A, AAAA, MX, CNAME, TXT, and NS records
- Reverse DNS — Look up hostnames from IP addresses
- WHOIS Lookup — Domain registration and ownership info
- IP Info — Geolocation and ISP details for any IP
- HTTP Headers — Inspect server response headers
- MAC Lookup — Identify hardware vendor by MAC address
- Subnet Calculator — Calculate IP ranges and subnets
- Blacklist Check — Check if an IP is blacklisted
- Ping — Test network connectivity
- Ping Monitor — Monitor ping over time
- Traceroute — Trace the network route to a host
Security
- SSL Checker — Verify SSL certificate chain and configuration
- SSL Expiry Checker — Monitor certificate expiration dates
- Security Headers — Audit HTTP security headers
- Password Generator — Generate strong, random passwords
- Password Checker — Test password strength
- Hash Generator — Create MD5, SHA-1, and SHA-256 hashes
SEO & Web
- SEO Analyzer — Full on-page SEO audit
- Page Speed — Performance and loading metrics
- Meta Tag Generator — Create and inspect meta tags
- Open Graph Checker — Preview social sharing cards
- Broken Link Checker — Find dead links on any page
- Robots.txt Tester — Validate your robots.txt file
- Sitemap Generator — Generate XML sitemaps
- Domain Expiry Checker — Monitor domain registration dates
- Uptime Monitor — Track website availability
Developer Tools
- API Tester — Test REST API endpoints
- JSON Formatter — Format and validate JSON
- Code Beautifier — Format HTML, CSS, and JavaScript
- Regex Tester — Test regular expressions with highlighting
- Cron Parser — Parse and explain cron schedules
- JWT Decoder — Decode JSON Web Tokens
- Markdown Preview — Live markdown rendering
- Text to Speech — Convert text to audio
Generators & Utilities
- Base64 Encoder/Decoder — Encode and decode Base64 strings
- UUID Generator — Generate unique identifiers
- QR Code Generator — Create QR codes for URLs, text, Wi-Fi
- Lorem Ipsum Generator — Generate placeholder text
- Timestamp Converter — Convert between timestamp formats
- Color Picker — Pick colors and convert hex/RGB values