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Network Utilities

🛠 MAC address lookup
🔧 IP address lookup
📨 Find IP address from email
🔒 SSL Cert Expiration Date
📞 Phone number lookup
🖥 IP to Hostname
🖥 Hostname to IP
🖥 IP/CIDR subnet
💻 View HTTP headers
💻 Which Webserver
🛠 MAC address generator
🔧 Zip code lookup
🗝 Wireless Network Key

Text/Math Utilities

🎼 Get YouTube thumbnail
🗝 Hash generator
🔀 JSON Sort
🔠 Text Case
🐠 Aquarium calculator
📅 Timestamp to Date

Miscellaneous

⛽ Costco gas prices DC area
👶 Baby Names ranking
🗣 Word pronunciation
👾 User-Agent database
🎭 Gravatar icons
🕸 Detect Browser Language
🦹 Proxy Server check
🤐 Gzip Compression test

Geographic

🇺 US States/territories
🌎 Geolocation detection
💳 SSN lookup
📌 Areacode lookup

Databases

🖥 Free Shell Servers
🔠 GRE Word List
👔 NAICS database

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Categories

Recent Articles

Web Controllable Christmas Lights using Raspberry Pi and RGB LED Strip
How to install Python 3.12 on Debian 11 bullseye
How to install Python 3.12 from source
How to Install Python 3.12.0 on the Raspberry Pi
How to Find SSL Certificate Expiration Date
Python for Kids: a 30-Day Roadmap
10 Gallon Blue Diamond Shrimp Tank

Popular Articles

How to find IP address of email sender
How to install Python 3.12 on Debian
How to send free SMS from email
How to set up a natural shrimp aquarium
Control your Christmas RGB lights from your website using a Raspberry Pi

Our books

ACSL Elementary Division Study Guide

Number Systems Practice Exercises

For the Spirit that God has given us does not make us timid; instead, His Spirit fills us with power, love, and self-control.
~ 2 Timothy 1:7

About

My name is Arul and I work as a software engineer at NASA. This website consists of a collection of tools, utilities and articles I wrote over the last 23 years. The Blog section covers several articles from technical to aquarium topics. You will also find free APIs that you can use in your applications.

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Free Downloads and API

IP Address widget
Free CSV, JSON datasets
10 free APIs and web services

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