Abacux

Calculus program developed for chemists, physicists and architects

Virtual Moon Atlas

Complete and appealing virtual atlas of the Moon

Moffsoft FreeCalc

Useful calculator similar to that of Windows

PowerToy Calc

A much more complete version of the Windows Calculator

ATCalc

Customizable scientific and graphic calculator

Khi3

Complete scientific calculator with plenty of options

Sky Charts

Hundreds of star charts in a single program

Versaverter

Easily convert measurement units

Calculator

Carry out the fastest maths calculations

Stellarium

Interesting application that lets you see the universe on your computer

Scalextric Track Length Calculator

Measure the length of your slot tracks

SpeedCrunch

Mathematical calculations within everyone's grasp

OpalCalc

Multiline calculator that integrates natural language

Asteroid Data Hunter

Become the best asteroid hunter

Celestia

Travel around the Universe from your PC

Asynx Planetarium

The Universe from your computer

FileASSASSIN

Unblock and eliminate the malicious and unwanted files from your computer.

WOT Internet Explorer

Discover if a website is dangerous with this plug-in

RKill

Put a halt to all the dangerous processes that run in the background

Mandiant Redline

Audit your computer in search of malware

Ghidra

The NSA's reverse engineering tools

Preventon

Protection against Internet dangers and malware

Winpooch Watchdog

Make sure your programs don't carry out dangerous operations

Latch Antiransomware

Anti-ransomware tool created by Telefónica's cybersecurity division

BitDefender USB Immunizer

Eliminate malicious auto-executable files from your USB pendrives

Norton Power Eraser

The last chance to remove viruses

RogueRemover

Remove false antivirus alarms from your computer

360 NSA Cyber Weapons Defense Tool

Security tool against the NSA's cyberweapons

OWASP Mantra

A pack of tools to check a website's security

RogueKiller

Protect your computer against any malware