SpeQ Mathematics - SpeQ is a small, extensive mathematics program with a simple, intuitive interface.
DuckDuckGo - The Internet privacy company that empowers you to seamlessly take control of your personal information online, without any tradeoffs.
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.
Google - Google Search, also referred to as Google Web Search or simply Google, is a web search engine developed by Google. It is the most used search engine on the World Wide Web
NoteCalc - Browser-based notepad built for math calculations.
Searx - Open source metasearch engine