Free tools and information for engineering and design of technical applications.

Engineers Edge - Engineering tools, Engineering Reference for the engineering world.

Awesome Mechanical Engineering Resources.

fxSolver is a math solver for engineering and scientific equations. To get started, add some formulas, fill in any input variables and press "Solve."

Scientific calculator with sleek interface and powerful capabilities

Kalker is a calculator that supports user-defined variables, functions, ambiguous syntax, differentiation and integration. It runs on Windows, macOS, Linux, Android, and in web browsers (with WebAssembly).

Scientific calculator with math syntax that supports user-defined variables and functions, complex numbers, and estimation of derivatives and integrals - PaddiM8/kalker

Calculator with basic and advanced mathematical functions

Provides free, trial or shareware civil engineering software for civil engineers, researchers and academics. You can download programs for PC, Mac, Linux and read software reviews.

Beautifully illustrated guides to car mechanics, automotive engineering and tools.

Battery University™ is a free educational website offering hands-on battery information.

Basic Electronics Tutorials and Revision Helps Beginners and Beyond Learn Basic Electronic Circuits, Engineering, and More. Visit Today!

Engineers apply the knowledge of math & science to design and manufacture maintainable systems used to solve specific problems. AskEngineers is a forum for questions about the technologies, standards, and processes used to design & build these systems, as well as for questions about the engineering profession and its many disciplines.

Engineers apply the knowledge of math & science to design and manufacture maintainable systems used to solve specific problems. AskEngineers is a forum for questions about the technologies, standards, and processes used to design & build these systems, as well as for questions about the engineering profession and its many disciplines.

Engineers apply the knowledge of math & science to design and manufacture maintainable systems used to solve specific problems. AskEngineers is a forum for questions about the technologies, standards, and processes used to design & build these systems, as well as for questions about the engineering profession and its many disciplines.

Engineers apply the knowledge of math & science to design and manufacture maintainable systems used to solve specific problems. AskEngineers is a forum for questions about the technologies, standards, and processes used to design & build these systems, as well as for questions about the engineering profession and its many disciplines.

Engineers apply the knowledge of math & science to design and manufacture maintainable systems used to solve specific problems. AskEngineers is a forum for questions about the technologies, standards, and processes used to design & build these systems, as well as for questions about the engineering profession and its many disciplines.

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r/engineering is a forum for engineering professionals to share information, knowledge, experience related to the principles & practices of the numerous engineering disciplines. r/engineering is **NOT** for students to ask for guidance on selecting their major, or for homework / project help. Read the sidebar BEFORE posting.

Discuss and share news in the automotive engineering world, get post-secondary and job advice, and insights/experiences about the industry.