Roche Biochemical Pathways Alternatives

Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.

Education & Reference

FlexiQuiz is a powerful online test generator that enables you to create engaging online quizzes, tests, or exams in minutes. Choose from 100's of features to create a customized quiz that meets your objectives for business, education, or fun.

Try for free freemium $25.0 / Monthly (Essentials plan)

Education & Reference

Scientific Calculator with Fractions, Complex Numbers and RPN Support

A practical calculating tool, unit conversion utility, and programming language designed to make physical calculations simple.

Education & Reference

PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody...

Calculator++ is an advanced, modern and easy to use scientific calculator.

Calculator for the GNOME Desktop Environment, formerly known as gcalc (and gcalctool CLI).

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

a faster hnsearch

Open Source

Wikiversity is a Wikimedia Foundation project devoted to learning resources, learning projects, and research for use in all levels, types, and styles of education from pre-school to university, including professional training and informal learning.

JavaScript tools, AJAX tools and some fully server side tools.