

Square Sketch is described as 'Digital graph paper for diagrams, technical sketches and geometric art' and is a Mind Mapping tool in the photos & graphics category. There are more than 100 alternatives to Square Sketch for a variety of platforms, including Windows, Web-based, Mac, Linux and iPhone apps. The best Square Sketch alternative is draw.io, which is both free and Open Source. Other great apps like Square Sketch are Excalidraw, LibreOffice - Draw, yEd Graph Editor and Dia.


SpiderScribe.net is an easier and more flexible way to create mind maps and brainstorm online. It allows to connect notes, images, files, etc. into free form maps.

Inclr's patented mindmapping app helps you organise your tasks, apps, and life into information clusters, the same way your mind works. We patented a system to help visualize your data by creating a structured method to store impressions into memory.




eSim (previously known as Oscad / FreeEDA) is an open source EDA tool for circuit design, simulation, analysis and PCB design.




iCircuit is the easy to use electronic circuit simulator and designer - the perfect tool for students, hobbyists, and engineers.


MockFlow accelerates early-stage product design and ideation with AI-powered wireframing, prototyping, and visual brainstorming. WireframePro and IdeaBoard enable teams to collaboratively transform initial concepts into professional, shareable wireframes and diagrams.




PathVisio is a free open-source pathway analysis and drawing software that allows drawing, editing and analysing biological pathways.



TINA Design Suite is a powerful circuit simulation package for analyzing, designing, and real time testing of analog, digital, VHDL, MCU, SMPS, RF, communication, optoelectronic and mixed electronic circuits and their PCB layouts.




We build the pickaxes of hardware engineering. Ideation tools, schematic capture, PCB layout, design hosting, parts library management, and affordable prototyping.
Developers tool for strip board projects. It has useful functions for designing, documenting and testing project boards. Therefore you will find functions like auto-generation of components lists, a connection test, a editable library with a large number of symbols and...


atopile is a language and toolchain to describe electronic circuit boards with code. By replacing the point and click schematic interface with code, we introduce software development workflows like reuse, validation and automation to the world of electronics.

TinyCAD is an open source schematic capture program for MS Windows. Use TinyCAD to produce professional circuit diagrams and export net list information to PCB applications.
