LTspice
QUCS
EasyEDA
Pspice
KiCad
Proteus PCB design
Fritzing
Autodesk EAGLE
FlowCode
QRTiger
Uniqode
Bitly
QR-Code Generator
QR.io
Scanova.io
QRcode-monkey.com
LTspice
FlowCodeLTspice is highly recommended for electronics engineers, students, and hobbyists who are involved in the design and analysis of analog circuits. It is especially beneficial for those working with power electronics, filter design, and analog components, as well as educators who require a dependable tool for teaching circuit fundamentals.
QUCS - Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.
QRTiger - The most advanced QR Code Generator with logo online
EasyEDA - EasyEDA - Web-based EDA suite; runs in browser.
Uniqode - Uniqode: Revolutionizing QR Codes, Simplifying Solutions.
Pspice - OrCAD PSpice technology provides the best, high-performance circuit simulation to analyze and refine your circuits, components, and parameters before committing to layout and fabrication
Bitly - Get the most out of your social and online marketing efforts. Own, understand and activate your best audience through the power of the link with Bitly Enterprise.