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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

Login Required

Port Scanner

Check open ports on a target host

IP Blacklist Checker

Check if IPs are listed on spam blacklists

Login Required

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

Login Required

DNS Propagation

Check DNS propagation status

SSL Checker

Check the SSL certificate details for a domain

Login Required

Speed Test

Test your internet connection speed

Subnet Calculator

Calculate subnet, network address, broadcast address, host range

Login Required

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

Login Required

CI/CD Config

Validate GitHub Actions, GitLab CI, etc.

Environment Variable Manager

Generate .env files securely

Login Required

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 Lookup

Email Deliverability

Professional-grade email validation without subscription fees or usage limits.

Check Email Setup

Security Analysis

Enterprise-level security tools for HTTP headers, passwords, and more - completely free.

Analyze Security