Choose a Category or Search for Tools
Network Tools
DNS, IP information, and network diagnostics
Security
Security analysis and encryption tools
Latency & Connectivity
Speed tests, ping, and connectivity checks
Text Manipulation
Tools for processing and modifying text
Developer Tools
Configuration validators and utilities for developers
Email Tools
Email validation and deliverability tools
All Tools
Whois IP
Look up IP information
Check DNS Records
Retrieve DNS records for a domain
Reverse DNS
Perform reverse DNS lookup for IP addresses
DNS Zone Generator
Create and validate DNS zone files
PTR Record Generator
Generate reverse DNS PTR records
Ping IPv6
Test IPv6 connectivity
Password Generator
Create strong, secure passwords
Website Status
Check if a website is up or down
Port Scanner
Check open ports on a target host
IP Blacklist Checker
Check if IPs are listed on spam blacklists
Email Validator
Check domain email deliverability
HTTP Header Analyzer
Analyze HTTP response headers
Base64 Encoder/Decoder
Convert text to/from Base64
Hash Generator
Generate MD5, SHA-1, SHA-256 hashes
JSON Formatter
Format, validate and minify JSON
DNS Propagation
Check DNS propagation status
SSL Checker
Check the SSL certificate details for a domain
Speed Test
Test your internet connection speed
Subnet Calculator
Calculate subnet, network address, broadcast address, host range
BGP Lookup
Look up BGP routing information, network owners, and AS relationships
CSS Minifier & Beautifier
Format and optimize CSS
JavaScript Minifier & Beautifier
Format and optimize JavaScript
Crontab Generator
Create and validate cron job expressions
Docker Compose Validator
Validate Docker Compose files
CI/CD Config
Validate GitHub Actions, GitLab CI, etc.
Environment Variable Manager
Generate .env files securely
Git Digest
Convert Git repositories to text digests for LLMs
Add Suffix/Prefix
Modify text with suffixes or prefixes
Keep or Remove Lines
Filter lines based on keyword
Remove Duplicates
Remove duplicate lines from text
Randomize Lines
Randomize the order of lines
Remove Empty Lines
Remove empty lines from text
Why Choose NetworkWhois?
Real-Time Analysis
Get instant results with our high-performance tools designed for network professionals.
Secure & Private
Your security is our priority. All tools are designed with privacy and security in mind.
Global Coverage
Access network information from servers around the world with 99.9% uptime accuracy.
100% Free
Enterprise-grade tools without the enterprise price tag. No subscriptions, no limits.
Cost-Effective Solutions
Why pay for expensive enterprise tools when you can get the same reliability, speed, and detalied results for free?
Fastest DNS Lookup
Resolve domain records with 99.9% uptime accuracy, faster than paid alternatives.
Try DNS LookupEmail Deliverability
Professional-grade email validation without subscription fees or usage limits.
Check Email SetupSecurity Analysis
Enterprise-level security tools for HTTP headers, passwords, and more - completely free.
Analyze Security